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avx ntc thermistors
1 contents ntc thermistors ntc thermistors general characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 application notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 selection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ordering code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 rohs/elv compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ntc smd thermistors nc 12 - nc 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 with nickel barrier termination nb 12 - nb 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 with nickel barrier termination nb 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 surface mounting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 ntc accurate nj 28 - ni 24 - nk 20 - np 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ntc disc thermistors nd 03/06/09 - ne 03/06/09 - nv 06/09 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ntc leadless disc thermistors nr series for consumer and automotive applications . . . . . . . . . . . . . . . . . . . . . . . . . . 27 resistance tables of resistance vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 identification C traceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 as we are anxious that our customers should benefit from the latest developments in the technology and standards, avx reserves the right to modify the characteristics published in this brochure. notice: specifications are subject to change without notice. contact your nearest avx sales office for the latest specification s. all statements, information and data given herein are believed to be accurate and reliable, but are presented without guarantee, warranty, or r esponsibility of any kind, expressed or implied. statements or suggestions concerning possible use of our products are made without representation or warr anty that any such use is free of patent infringement and are not recommendations to infringe any patent. the user should not assume that all safe ty measures are indicated or that other measures may not be required. specifications are typical and may not apply to all applications.
2 1 C introduction ntc thermistors are thermally sensitive resistors made from a mixture of mn, ni, co, cu, fe oxides. sintered ceramic bodies of various sizes can be obtained. strict conditions of mixing, pressing, sintering and metallization ensure an excellent batch-to-batch product characteristics. this semi-conducting material reacts as an ntc resistor, whose resistance decreases with increasing temperature. this negative temperature coefficient effect can result from an external change of the ambient temperature or an inter- nal heating due to the joule effect of a current flowing through the thermistor. by varying the composition and the size of the thermistors, a wide range of resistance values (0.1 to 1m) and tem- perature coefficients (-2 to -6% per c) can be achieved. rohs (restriction of hazardous substances - european union directive 2002/95/ec). elv (end of life-vehicle - european union directive 2000/53/ec). all thermistor products have been fully rohs/elv since before 2006. chip thermistor nb rohs/elv status: external plating 100% smooth semi-bright sn as standard snpb termination available on request. 2 C main characteristics 2.1 characteristics with no dissipation 2.1.1. nominal resistance (rn) the nominal resistance of an ntc thermistor is generally given at 25c. it has to be measured at near zero power so that the resultant heating only produces a negligible measurement error. the following table gives the maximum advised measure - ment voltage as a function of resistance values and thermal dissipation factors. this voltage is such that the heating effect generated by the measurement current only causes a resistance change of 1% rn/rn. 2.1.2. temperature - resistance characteristics r (t) this is the relation between the zero power resistance and the temperature. it can be determined by experimental mea- surements and may be described by the ratios r (t) /r (25c) where: r (t) is the resistance at any temperature t r (25c) is the resistance at 25c. these ratios are displayed on pages 29 to 33. 2.1.3. temperature coefficient ( ) the temperature coefficient ( ) which is the slope of the curve at a given point is defined by: 100 dr = ? and expressed in % per c. rdt 2.1.4. sensitivity index (b) the equation r = a exp (b/t) may be used as a rough approximation of the characteristic r (t). b is called the sensitivity index or constant of the material used. to calculate the b value, it is necessary to know the resis- tances r 1 and r 2 of the thermistor at the temperatures t 1 and t 2 . the equation: r 1 = r 2 exp b () leads to: b (k) = 1 ? n () conventionally, b will be most often calculated for tempe- ratures t 1 = 25c and t 2 = 85c (298.16 k and 358.16 k). in fact, as the equation r = a exp (b/t) is an approximation, the value of b depends on the temperatures t 1 and t 2 by which it is calculated. for example, from the r (t) characteristic of material m (values given on page 29), it can be calculated: b (25 C 85) = 3950 b (0 C 60) = 3901 b (50 C 110) = 3983 when using the equation r = a exp (b/t) for this material, the error can vary by as much as 9% at 25c, 0.6% at 55c and 1.6% at 125c. using the same equation, it is possible to relate the values of the index b and the coefficient : 1dr = ? ? a exp (b/t) ? rdt thus = C expressed in %/c ntc thermistors general characteristics ranges of maximum measuring voltage values (v) () = 2 mw/c = 5 mw/c = 10 mw/c = 20 mw/c r 10 0.10 10 < r 100 0.13 0.18 0.24 100 < r 1,000 0.25 0.38 0.53 0.24 1,000 < r 10,000 0.73 1.1 1.5 2.0 10,000 < r 100,000 2.1 3.2 4.6 r < 100,000 6.4 9.7 14.5 1 - 1 t 1 t 2 r 1 r 2 () 1 - 1 t 1 t 2 = 1 a exp (b/t) -b t 2 b t 2
3 ntc thermistors general characteristics 2.1.5. further approximation of r (t) curve the description of the characteristic r (t) can be improved by using a greater number of experimental points, and by using the equation: 1 = a + b ( n r) + c ( n r) 3 t the parameters a, b and c are determined by solving the set of equations obtained by using the measured resis- tances at three temperatures. the solution of the above equation gives the resistance at any temperature: the precision of this description is typically 0.2c for the range C50 to +150c (a, b, c being determined with exper- imental values at C20, +50 and 120c) or even better if this temperature range is reduced. the ratios r(t)/r(25c) for each of the different materials shown on pages 29 to 33 have been calculated using the above method. 2.1.6. resistance tolerance and temperature precision an important characteristic of a thermistor is the tolerance on the resistance value at a given temperature. this uncertainty on the resistance (dr/r) may be related to the corresponding uncertainty on the temperature (dt), using the relationship: t = 100 ? r ? 1 r example: consider the thermistor nd06m00152j ? r (25c) = 1500 ohms ? made from m material ? r (t) characteristic shown on page 23 gives: = - 4.4%/c at 25c ? tolerance r/r = 5% is equivalent to: t = 5%/4.4%/c = 1.14c 2.1.7. resistance tolerance at any temperature any material used for ntc manufacturing always displays a dispersion for the r (t) characteristic. this dispersion depends on the type of material used and has been especially reduced for our accuracy series thermistors. thus, the tolerance on the resistance ( r 2 /r 2 ) at a temper- ature t 2 is the sum of two contributions as illustrated on figure 1: C the tolerance r 1 /r 1 at a temperature t 1 used as a reference. C an additional contribution due to the dispersion on the characteristic r (t) which may be called manufacturing tolerance (tf). figure 1 differentiating the equation r = a exp (b/t), the two contri- butions on the tolerance at t can also be written: r 2 = r 1 + ?? ? b r 2 r 1 the t(f) values given with the resistance C temperature characteristics on pages 29 to 33 are based on a computer simulation using this equation and experimental values. 2.1.8. designing the resistance tolerances using the fact that the coefficient decreases with temper- ature ( = Cb/t 2 ), it is generally useful to define the closest tolerance of the thermistor at the maximum value of the temperature range where an accuracy in c is required. for example, let us compare the two designs 1 and 2 hereafter: only the design 2 is able to meet the requirement t 1c from 25c to 100c. r r 25 25 c t temperature ( c) graph with b graph with b b } ( r) 25 c } } ( r) 25 c + t f } = ( r) t 1 - 1 t 1 t 2 tr design 1 design 2 (c) () (%/c) r/r(%) t(c) r/r(%) t(c) 0 3275 -5.2 3.5 0.7 5.0 1.0 25 1000 -4.4 3.0 0.7 4.5 1.1 55 300 -3.7 3.5 1.0 4.0 1.1 85 109 -3.1 4.1 1.3 3.4 1.1 100 69.4 -2.9 4.5 1.6 3.0 1.0 a - 1/t c () a - 1/t c () n r (t) = ] [ - 27 2 1 3 b c 3 + 3 2 327 2 + 4 3 () - 3 + 27 2 a - 1/t c () () () + 3 2 327 2 + 4 3 a - 1/t c () b c () ()
4 2.1.9. shaping of the r (t) characteristic by the use of a resistor network, it is possible to modify the r (t) characteristic of a thermistor so that it matches the required form, for example a linear response over a restrict- ed temperature range. a single fixed resistor rp placed in parallel with a thermistor gives a sCshape resistanceCtemperature curve (see figure 2) which is substantially more linear at the temperature range around the inflexion point (ro, to). figure 2 C linearization of a thermistor it can be calculated that better linearization is obtained when the fixed resistor value and the mid-range temperature are related by the formula: rp = r to x b C to b+ 2to for example, with a thermistor nd03n00103j r 25c = 10k, b = 4080 k good linearization is obtained with a resistor in parallel where the value is: rp = 10,000 x 4080 - 298 = 8088 4080 + (2 x 298) 2.1.10. demonstration of the r (t) parameters calculation to help our customers when designing thermistors for temperature measurement or temperature compensation, software developed by our engineering department is avail- able upon request. 2.2 characteristics with energy dissipation when a current is flowing through an ntc thermistor, the power due to the joule effect raises the temperature of the ntc above ambient. the thermistor reaches a state of equilibrium when the power supplied becomes equal to the power dissipated in the environment. the thermal behavior of the thermistor is mainly dependent on the size, shape and mounting conditions. several parameters have been defined to characterize these properties: 2.2.1. heat capacity (h) the heat capacity is the amount of heat required to change the temperature of the thermistor by 1c and is expressed in j/c. 2.2.2. dissipation factor ( ) this is the ratio between the variation in dissipated power and the variation of temperature of the ntc. it is expressed in mw/c and may be measured as: = u.i 85 C 25 where u.i is the power necessary to raise to 85c the tem- perature of a thermistor maintained in still air at 25c. 2.2.3. maximum permissible temperature (t max) this is the maximum ambient temperature at which the ther- mistor may be operated with zero dissipation. above this temperature, the stability of the resistance and the leads attachment can no longer be guaranteed. 2.2.4. maximum permissible power at 25c (pmax) this is the power required by a thermistor maintained in still air at 25c to reach the maximum temperature for which it is specified. for higher ambient temperatures, the maximum permissible power is generally derated according to the figure 3 here- after and tl = tmax C 10c. figure 3 C derating of maximum power r (k ) t ( c) r t o r p r o t o r p p max 25 t l t max t c ntc thermistors general characteristics
5 2.2.5. voltage C current curves v (l) these curves describe the behavior of the voltage drop v measured across the ntc as the current l through the ntc is increased. they describe the state of equilibrium between power resulting from joule effect and dissipated power in the surroundings. (figure 4) figure 4 C voltage C current curve v (l) several zones can be identified: C low current zone dissipated energy only produces negligible heating and the curve v (l) is almost linear. C non-linear zone the curve v (l) displays a maximum voltage vmax for a current lo.this maximum voltage vmax and the temper- ature tmax reached by the ntc under these conditions can be determined by using the equations: p = v 2 /r = (t - t amb ) and r = ramb ? exp b (1/t - 1/t amb ) therefore: tmax = b/2 - b 2 /4 - bt amb ~ t amb vmax = (t max - t amb ) ? r amb exp [ b ( 1 - 1 ) ] t max t amb where is the dissipation factor and t amb is the ambi- ent temperature. C high current zone for higher currents, an increase in temperature of the ntc decreases the resistance and the voltage more rapidly than the increase of the current. above a certain dissipated power, the temperature of the ntc exceeds the permissible value. 2.2.6. current C time curves l(t) when voltage is applied to a thermistor, a certain amount of time is necessary to reach the state of equilibrium described by the v(l) curves. this is the heating up time of the thermistor which depends on the voltage and the resistance on one side and the heat capacity and dissipation on the other. the curves l(t) are of particular interest in timing applications. 2.2.7. thermal time constant when a thermistor is self-heated to a temperature t above ambient temperature tamb, and allowed to cool under zero power resistance, this will show a transient situation. at any time interval dt, dissipation of the thermistor ( (t C t amb )dt) generates a temperature decrease Chdt, resulting in the equation: 1 dt = - dt (t - t amb )h the solution to this equation for any value of t, measured from t = 0, is: n (t - t amb ) = - t (to - t amb )h we can define a thermal time constant as: = h/ expressed in seconds. where the time t = : (t - t amb ) / (to - t amb ) = exp - 1 = 0.368 expressing that for t = , the thermistor cools to 63.2% of the temperature difference between the initial to and tamb (see figure 5). according to iec 539 our technical data indicates mea- sured with to = 85c, t amb = 25c and consequently t = 47.1c. figure 5 C temperature C time curve t(t) 2.2.8. response time more generally, it is possible to define a response time as the time the thermistor needs to reach 63.2% of the total temperature difference when submitted to a change in the thermal equilibrium (for example from 60c to 25c in silicone oil 47v20 rhodorsil). t ( c) 85 47.1 25 t t (s) v vmax i o i ntc thermistors general characteristics ( ) 1 + t amb b
6 temperature measurement high sensitivity and low cost make ntc thermistors the most common device used for temperature measurement. non-linearity of the r -t curve generally leads to the use of a resistor network to linearize the signal. an example is given in figure 6. more precise measurements and temperature display can also be achieved with simple electronic equipment as shown in figure 7. the choice of the model will particularly take into account the small size (better response time) and the resistance tolerance. mounting conditions (dissipation), and input volt- age (self-heating) will also be carefully defined to avoid serious errors in temperature measurement. temperature control and alarm ntc thermistors can be used as a simple on-off control tem- perature system or temperature alarm system. figure 8 gives an example of such a circuit. when the temperature increases to a defined value, the resistance of the thermistor decreases and the current becomes sufficiently high to energize the relay and provide temperature alarm or heating system turn-off. the high sensitivity of thermistors (about 4% resistance change for 1c) allows the temperature to be controlled very precisely. temperature compensation as many electronic components (integrated circuits, ampli- fiers,...) have a positive temperature coefficient of resistance, ntc thermistors represent a cheap and interesting solution to compensate for this effect and provide an improved temperature stability for electronic equipment. it is necessary to include the thermistor in a resistor network (figure 10) calculated in such a manner that the network coefficient compensates exactly for the positive temperature coefficient of the other component (figure 9). common leaded discs or chip thermistors are well suited for this application. figure 6 figure 7 ntc thermistors application notes r 2 r 1 r 3 r ntc thermistor circuit a/d converter display t c processor with r/t algorithm resistance temperature r total r ntc r c r r r ntc r c r 1 r 2 r 3 r ntc figure 8 figure 9 figure 10
7 liquid level or flow detection the dissipation of a thermistor is significantly different in a liquid or in a gas, in a static fluid or in a stirred one. a liquid level detector or a gasCflow measurement can be designed using this property. in figure 11, the output voltage measured on the thermistor depends upon the dissipation factor of its environment, and can be illustrated by v-l curves (figure 12). this voltage can be used to detect the presence (v 2 ) or absence (v 1 ) of liquid around the thermistor or measure the flow speed. a good design should define a precise operating temperature range, where dissipation in the high dissipating medium at highest ambient temperature remains higher than the dissipa- tion in low dissipating medium at lowest ambient temperature. surge protection a soft start of sensitive apparatus can be achieved by using ntc thermistors as described in figures 13 and 14. at turn-on, the ntc absorbs the surge current, limits the current across the equipment and protects it. then, the thermistor heats, its resistance decreases and most of the power becomes applied to the apparatus. in its design, the thermistor will be selected with a thermal capacity higher than the surge energy to absorb. time delay the current-time characteristic of a thermistor is used in time delay applications such as delaying energization of a relay after application of power to an electrical circuit. the time delay, time necessary for the thermistor to heat up to the temperature where its resistance allows the current to reach the switching value of the relay, is mainly defined with the nominal resistance of the thermistor. the time delay is also strongly dependent upon the ambient temperature, as shown in figure 15. figure 11 figure 12 figure 15 current t = 50 c t = 40 c t = 25 c time voltage v in v 2 v 1 v in/r s current k 2 k 1 v in r s r ntc v ntc thermistors application notes figure 13 figure 14 r ntc equipment power unprotected equipment protected equipment ntc absorbed power time
8 ntc thermistors selection guide types range of values main applications page r at 25c smd - hybrid circuit nc 12/20 - temperature 10 nb 12/20 compensation 12 nb 21/23 14 accuracy series 19 leaded discs 21 leadless discs 27 - temperature measurement - temperature measurement and regulation - level detection - compensation - automotive and industrial thermal control custom designed products generally defined at two temperatures nj 28 ni 24 np 30 nk 20 n.03 n.06 n.09 nr 10 1 m 2 k 100 k 2 k 100 k 330 1 m 150 330 k 68 150 k
9 nc20 k 0 0103 m C C ntc thermistors ordering code ty p e nc 12 nc 20 nb 12 nb 20 nb 21 nb 23 nj 28 ni 24 nk 20 nd 03 nd 06 nd 09 nr .. material code i j k l m n p q r s t u (see tables pages 29 to 33) material code 2nd digit nj, nk types: a nb, nc types: c or o or 5 or 2 other types: 0 resistance at 25oc (eia code) tolerance on resistance at 25c f: 1% g: 2% h: 3% j: 5% k: 10% l: 15% m: 20% x: 25% suffix how to order rohs/elv compliance by product family for leadless discs (types nr) see specification and ordering code on pages 28. 1. resistance expressed by two significant figures 1st digit: 0 (zero) 2nd and 3rd digits: the first two significant figures of the resistance value at 25c. 4th digit: C for values 10 : the number of zeros to be added to the resistance value C for values 1 and 9.9 : the numerical 9 signifying that the resistance value is to be multiplied by 0.1 C for values < 1 : the numerical 8 signifying that the resistance value is to be multiplied by 0.01 examples: 1000 : 0102 8.2 : 0829 0.47 : 0478 2. resistance expressed by three significant figures 1st, 2nd and 3rd digits: the first three significant figures of the resistance value at 25c. 4th digit: C for values > 100 : the number of zeros to be added to the resistance value C for values > 10 and < 100 : the numerical 9 signifying that the resistance value is to be multiplied by 0.01 C for values > 1 and < 10 : the numerical 8 signifying that the capacitance value is to be multiplied by 0.01 examples : 196 : 1960 47.2 : 4729 rohs (restriction of hazardous substances - european union directive 2002/95/ec). elv (end of life-vehicle - european union directive 2000/53/ec). all thermistor products have been fully rohs/elv since before 2006. chip thermistor nb rohs/elv status: external plating 100% smooth semi-bright sn as standard snpb termination available on request. products that are supplied as standard in rohs/elv compliant form for listed industrial product family rohs compliant for material listed group series cadmium hexavalent lead mercury pbbs pbdes chromium leaded ntc thermistors nf ni 444444 thermistors thermistors nd nj np 444444 smd thermistors nc 444444 thermistors thermistors nb 444444 lead-free compatible component
10 ty p e s nc 12 nc 20 iec size : 0805 iec size : 1206 terminations silver C palladium C platinum metallization marking on packaging only climatic category 40/125/56 operating temperature -55c to +150c tolerance on rn (25c) 5%, 10%, 20% maximum dissipation at 25c 0.12 w 0.24 w thermal dissipation factor 2 mw/c 4 mw/c thermal time constant 5 s 7 s ntc smd thermistors nc 12 C nc 20 chip thermistors are a high quality and low cost device espe- cially developed for surface mounting applications. they are widely used for temperature compensation but can also achieve temperature control of printed circuits. its silver - palladium - platinum metallization provides a high degree of resistance to dewetting of the terminations during soldering (typically 260c / 30 s). applications ? lcd compensation ? battery packs ? mobile phones ? cd players ? heating systems ? air-conditioning systems ? temperature control of switch mode power supplies ? compensation of pressure sensors ? protection of power transistors in various electronic circuits 2 (.079) 0.3 (.012) 1.25 (.049) 0.2 (.008) 0.5 (.020) ... 1.3 (.051) 0.2 (.008) min 0.2 (.008) min 3.2 (.126) 0.4 (.016) 0.2 (.008) min 0.2 (.008) min 1.6 (.063) 0.25 (.010) 0.5 (.020) ... 1.5 (.059) resistance - temperature characteristics: pages 29 to 33. how to order nc 20 ty p e k 0 material code k (see tables pages 11, 29-33) 0103 resistance 10,000 m tolerance m (20%) j (5%) k (10%) ba suffix: packaging C C: bulk ba: plastic tape (180mm diam. reel) be: plastic tape (1/2 reel) bc: plastic tape (330mm diam. reel) bb: cardboard tape (180mm diam. reel) bf: cardboard tape (1/2 reel) bd: cardboard tape (330mm diam. reel) dimensions: millimeters (inches)
11 ntc smd thermistors nc 12 C nc 20 nc 12 iec size : 0805 ty p e s rn at 25c material b (k) at 25c () code ( b/b ) (%/c) nc 12 kc 0 180 18 nc 12 kc 0 220 22 nc 12 kc 0 270 27 nc 12 kc 0 330 33 nc 12 kc 0 390 39 kc 3470 5% C 3.9 nc 12 kc 0 470 47 nc 12 kc 0 560 56 nc 12 kc 0 680 68 nc 12 kc 0 820 82 nc 12 kc 0 101 100 nc 12 mc 0 121 120 nc 12 mc 0 151 150 nc 12 mc 0 181 180 nc 12 mc 0 221 220 nc 12 mc 0 271 270 nc 12 mc 0 331 330 nc 12 mc 0 391 390 nc 12 mc 0 471 470 nc 12 mc 0 561 560 mc 3910 3% C 4.4 nc 12 mc 0 681 680 nc 12 mc 0 821 820 nc 12 mc 0 102 1,000 nc 12 mc 0 122 1,200 nc 12 mc 0 152 1,500 nc 12 mc 0 182 1,800 nc 12 mc 0 222 2,200 nc 12 mc 0 272 2,700 nc 12 mc 0 332 3,300 nc 12 j 0 0332 3,300 nc 12 j 0 0392 3,900 j 3480 3% C 3.9 nc 12 j 0 0472 4,700 nc 12 j 0 0562 5,600 nc 12 k 0 0682 6,800 nc 12 k 0 0822 8,200 k 3630 3% C 4.0 nc 12 k 0 0103 10,000 nc 12 k 0 0123 12,000 nc 12 l 0 0153 15,000 l 3790 3% C 4.2 nc 12 l 0 0183 18,000 nc 12 m 0 0223 22,000 nc 12 m 0 0273 27,000 m 3950 3% C 4.4 nc 12 m 0 0333 33,000 nc 12 m 0 0393 39,000 nc 12 n 0 0473 47,000 n 4080 3% C 4.6 nc 12 n 0 0563 56,000 nc 12 l 2 0683 68,000 l2 3805 3% C 4.1 nc 12 n 0 0823 82,000 n 4080 3% C 4.6 nc 12 p 0 0104 100,000 nc 12 p 0 0124 120,000 p 4220 3% C 4.7 nc 12 p 0 0154 150,000 nc 12 p 0 0184 180,000 nc 12 q 0 0224 220,000 q 4300 3% -4.7 nc 20 iec size : 1206 types rn at 25c material b (k) at 25c () code ( b/b ) (%/c) nc 20 kc 0 100 10 nc 20 kc 0 120 12 nc 20 kc 0 150 15 nc 20 kc 0 180 18 nc 20 kc 0 220 22 nc 20 kc 0 270 27 kc 3470 5% C 3.9 nc 20 kc 0 330 33 nc 20 kc 0 390 39 nc 20 kc 0 470 47 nc 20 kc 0 560 56 nc 20 kc 0 680 68 nc 20 kc 0 820 82 nc 20 kc 0 101 100 nc 20 mc 0 121 120 nc 20 mc 0 151 150 nc 20 mc 0 181 180 nc 20 mc 0 221 220 nc 20 mc 0 271 270 nc 20 mc 0 331 330 nc 20 mc 0 391 390 mc 3910 3% C 4.4 nc 20 mc 0 471 470 nc 20 mc 0 561 560 nc 20 mc 0 681 680 nc 20 mc 0 821 820 nc 20 mc 0 102 1,000 nc 20 mc 0 122 1,200 nc 20 mc 0 152 1,500 nc 20 i 0 0182 1,800 nc 20 i 0 0222 2,200 nc 20 i 0 0272 2,700 i 3250 5% C 3.7 nc 20 i 0 0332 3,300 nc 20 j 0 0392 3,900 nc 20 j 0 0472 4,700 j 3480 3% C 3.9 nc 20 j 0 0562 5,600 nc 20 j 0 0682 6,800 nc 20 k 0 0822 8,200 nc 20 k 0 0103 10,000 k 3630 3% C 4.0 nc 20 k 0 0123 12,000 nc 20 k 0 0153 15,000 nc 20 l 0 0183 18,000 l 3790 3% C 4.2 nc 20 l 0 0223 22,000 nc 20 m 0 0273 27,000 nc 20 m 0 0333 33,000 m 3950 3% C 4.4 nc 20 m 0 0393 39,000 nc 20 m 0 0473 47,000 nc 20 n 0 0563 56,000 nc 20 n 0 0683 68,000 n 4080 3% C 4.6 nc 20 n 0 0823 82,000 nc 20 n 0 0104 100,000 nc 20 p 0 0124 120,000 nc 20 p 0 0154 150,000 p 4220 3% C 4.7 nc 20 p 0 0184 180,000 nc 20 p 0 0224 220,000 nc 20 q 0 0274 270,000 nc 20 q 0 0334 330,000 q 4300 3% C 4.7 nc 20 q 0 0394 390,000 nc 20 q 0 0474 470,000 nc 20 r 0 0564 560,000 nc 20 r 0 0684 680,000 r 4400 3% C 4.8 nc 20 r 0 0824 820,000 nc 20 r 0 0105 1,000,000 (1) 5% (2) 3% (1) 5% (2) 3% table of values
12 ntc smd thermistors with nickel barrier termination nb 12 - nb 20 ty p e s nb 12 nb 20 iec size : 0805 iec size : 1206 terminations nickel barrier marking on packaging only climatic category 40/125/56 operating temperature -55c to +150c tolerance on rn (25c) 5%, 10%, 20% maximum dissipation at 25c 0.12 w 0.24 w thermal dissipation factor 2 mw/c 4 mw/c thermal time constant 5 s 7s chip thermistors are high quality and low cost devices especially developed for surface mounting applications. they are widely used for temperature compensation but can also achieve temperature control of printed circuits. a nickel barrier metallization provides outstanding qualities of solderability and enables this chip to meet the requirements of the most severe soldering processes. applications ? lcd compensation ? battery packs ? mobile phones ? cd players ? heating systems ? air-conditioning systems ? temperature control of switch mode power supplies ? compensation of pressure sensors ? protection of power transistors in various electronic circuits 2 (.079) 0.3 (.012) 1.25 (.049) 0.2 (.008) 0.5 (.020) ... 1.3 (.051) 0.2 (.008) min 0.2 (.008) min 3.2 (.126) 0.4 (.016) 0.2 (.008) min 0.2 (.008) min 1.6 (.063) 0.25 (.010) 0.5 (.020) ... 1.5 (.059) resistance - temperature characteristics: pages 29 to 33. how to order nb 20 ty p e k 0 material code k (see tables page 13) 0103 resistance 10,000 m tolerance m (20%) j (5%) k (10%) ba suffix: packaging C C: bulk ba: plastic tape (180mm diam. reel) be: plastic tape (1/2 reel) bc: plastic tape (330mm diam. reel) bb: cardboard tape (180mm diam. reel) bf: cardboard tape (1/2 reel) bd: cardboard tape (330mm diam. reel) dimensions: millimeters (inches)
nb 20 iec size : 1206 ty p e s rn at 25c material b (k) at 25c () code ( b/b ) (%/c) nb 20 mc 0 221 220 mc 3910 3% C 4.4 nb 20 mc 0 102 1,000 mc 3910 3% C 4.4 nb 20 j 0 0472 4,700 nb 20 j 0 0562 5,600 j 3480 3% C 3.9 nb 20 j 0 0682 6,800 nb 20 j 5 0822 8,200 j5 3480 3% C 3.9 nb 20 k 0 0103 10,000 k 3630 3% C 4.0 nb 20 k 0 0123 12,000 nb 20 l 0 0153 15,000 nb 20 l 0 0183 18,000 l 3790 3% C 4.2 nb 20 l 0 0223 22,000 nb 20 m 0 0273 27,000 nb 20 m 0 0333 33,000 m 3950 3% C 4.4 nb 20 m 0 0393 39,000 nb 20 m 0 0473 47,000 nb 20 n 0 0563 56,000 nb 20 n 0 0683 68,000 n 4080 3% C 4.6 nb 20 n 0 0823 82,000 nb 20 n 5 0104 100,000 n5 4160 3% C 4.7 nb 20 p 0 0124 120,000 nb 20 p 0 0154 150,000 nb 20 p 0 0184 180,000 p 4220 3% C 4.7 nb 20 p 0 0224 220,000 nb 20 q 0 0274 270,000 nb 20 q 0 0334 330,000 nb 20 q 0 0394 390,000 q 4300 3% C 4.7 nb 20 q 0 0474 470,000 nb 20 q 0 0564 560,000 nb 20 r 0 0684 680,000 nb 20 r 0 0824 820,000 r 4400 3% C 4.8 nb 20 r 0 0105 1,000,000 (1) 5% (2) 3% 13 ntc smd thermistors with nickel barrier termination nb 12 C nb 20 nb 12 iec size : 0805 ty p e s rn at 25c material b (k) at 25c () code ( b/b ) (%/c) nb 12 kc 0 180 18 nb 12 kc 0 220 22 nb 12 kc 0 270 27 nb 12 kc 0 330 33 nb 12 kc 0 390 39 kc 3470 5% C 3.9 nb 12 kc 0 470 47 nb 12 kc 0 560 56 nb 12 kc 0 680 68 nb 12 kc 0 820 82 nb 12 kc 0 101 100 nb 12 mc 0 121 120 nb 12 mc 0 151 150 nb 12 mc 0 181 180 nb 12 mc 0 221 220 nb 12 mc 0 271 270 nb 12 mc 0 331 330 nb 12 mc 0 391 390 nb 12 mc 0 471 470 nb 12 mc 0 561 560 mc 3910 3% C 4.4 nb 12 mc 0 681 680 nb 12 mc 0 821 820 nb 12 mc 0 102 1,000 nb 12 mc 0 122 1,200 nb 12 mc 0 152 1,500 nb 12 mc 0 182 1,800 nb 12 mc 0 222 2,200 nb 12 mc 0 272 2,700 nb 12 mc 0 332 3,300 nb 12 j 0 0332 3,300 nb 12 j 0 0392 3,900 j 3480 3% C 3.9 nb 12 j 0 0472 4,700 nb 12 j 0 0562 5,600 nb 12 k 0 0682 6,800 nb 12 k 0 0822 8,200 k 3630 3% C 4.0 nb 12 k 0 0103 10,000 nb 12 l 0 0123 12,000 l 3790 3% C 4.2 nb 12 l 0 0153 15,000 nb 12 m 0 0183 18,000 nb 12 m 0 0223 22,000 m 3950 3% C 4.4 nb 12 m 0 0273 27,000 nb 12 m 0 0333 33,000 nb 12 n 0 0393 39,000 nb 12 n 0 0473 47,000 n 4080 3% C 4.6 nb 12 n 0 0563 56,000 nb 12 l 2 0683 68,000 l2 3805 3% C 4.1 nb 12 n 5 0683 68,000 n5 4160 3% C 4.7 nb 12 n 5 0823 82,000 nb 12 p 0 0104 100,000 p 4220 3% C 4.7 nb 12 sc 0104 100,000 sc 4500 3% C 4.8 nb 12 p 0 0124 120,000 nb 12 p 0 0154 150,000 p 4220 3% C 4.7 nb 12 p 0 0184 180,000 nb 12 q 0 0224 220,000 q 4300 3% C 4.7 nb 12 q 0 0274 270,000 nb 12 r 0 0105 1,000,000 r 4400 3% C 4.8 (1) 5% (2) 3% table of values
14 ntc smd thermistors with nickel barrier termination nb 21 ty p e s nb 21 iec size : 0603 terminations nickel barrier marking on packaging only climatic category 40/125/56 operating temperature -55c to +150c tolerance on rn (25c) 5%, 10%, 20% maximum dissipation at 25c 0.07 w thermal dissipation factor 1 mw/c thermal time constant 4 s chip thermistors are high quality and low cost devices especially developed for surface mounting applications. they are widely used for temperature compensation but can also achieve temperature control of printed circuits. a nickel barrier metallization provides outstanding qualities of solderability and enables this chip to meet the requirements of the most severe soldering processes. applications ? lcd compensation ? battery packs ? mobile phones ? cd players ? heating systems ? air-conditioning systems ? temperature control of switch mode power supplies ? compensation of pressure sensors ? protection of power transistors in various electronic circuits 1.6 (.063) 0.2 (.008) 0.8 (.031) 0.2 (.008) 0.8 (.031) 0.2 (.008) 0.2 (.008) min 0.2 (.008) min resistance - temperature characteristics: pages 29 to 33. how to order nb 21 ty p e k 0 material code k (see tables page 15) 0103 resistance 10,000 m tolerance m (20%) j (5%) k (10%) bb suffix: packaging C C: bulk bb: cardboard tape (180mm diam. reel) bf: cardboard tape (1/2 reel) bd: cardboard tape (330mm diam. reel) dimensions: millimeters (inches)
15 ntc smd thermistors with nickel barrier termination nb 21 table of values nb 21 iec size : 0603 ty p e s rn at 25c material b (k) at 25c () code ( b/b ) (%/c) nb 21 kc 0 470 47 nb 21 kc 0 101 100 kc 3470 5% C 3.9 nb 21 kc 0 471 470 nb 21 mc 0 102 1,000 mc 3910 3% C 4.4 nb 21 j 0 0472 4,700 j 3480 3% C 3.9 nb 21 j 5 0682 6,800 j5 3480 3% C 3.9 nb 21 j 5 0103 10,000 3480 3% C 3.9 nb 21 k 0 0103 10,000 k 3630 3% C 4.0 nb 21 k 0 0153 15,000 nb 21 l 0 0223 22,000 l 3790 3% C 4.2 nb 21 m 0 0333 33,000 m 3950 3% C 4.4 nb 21 m 0 0473 47,000 nb 21 l 2 0683 68,000 l2 3805 3% C 4.1 nb 21 n 0 0683 68,000 n 4080 3% C 4.6 nb 21 n 5 0104 100,000 n5 4160 3% C 4.7 nb 21 p 0 0154 150,000 p 4220 3% C 4.7 nb 21 q 0 0334 330,000 q 4300 3% C 4.7 nb 21 q 0 0474 470,000 (1) 5% (2) 3%
16 packaging for automatic insertion ntc chip thermistors / nc/nb series automatic insertion super 8 plastic tape packaging: the mechanical and dimensional reel characteristics are in accordance with the iec publication 286-3. r = 0.3 (.012) max. max 3 max 3 max 3 max 3 cover tape 30 5 t k a1 b1 b0 d0 p2 p0 w hole f e a0 5.5 (.217) 0.2 (.008) direction of unreeling +0.2 (.008) -0 1 (.039) designation symbol value tolerance tape width w 8 0.2 tape thickness t 0.4 max. pitch of the sprocket holes p0 4 0.1 diameter of the sprocket holes d0 1.5 0.1 -0 distance e 1.75 0.1 distance (center to center) f 3.5 0.05 distance (center to center) p2 2 0.1 sizes of the nc 12 (0805) a0 1.5 0.1 cavities b0 2.4 0.1 k 1.4 max. k 0.1 (size is adjustable) (k = t1 +0.2) nc 20 (1206) a0 1.95 0.1 b0 3.55 0.1 k 1.5 max. k 0.1 (size is adjustable) (k = t1 +0.2) bottom side reel upper side direction of unreeling reel according to iso/dis 3639-2 ?12.75 (.502) + 0.15 (.006) - 0 ?80 (7.09) + 0 - 2 (.079) ?20.5 (.087) + 0.5 (.020) - 0 8.4 (.331) +0.15 (.006) 14.4 (.567) max. ?62 (2.44) 1.5 (.059) quantity per reel type suffix qty per reel nc - nb 12 ba 4000 be 2000 nc 20 - nb 20 ba 3000 be 1500
17 packaging for automatic insertion ntc chip thermistors / nc/nb series automatic insertion 8mm paper tape packaging: the mechanical and dimensional reel characteristics are in accordance with the iec publication 286-3. p 0 b 0 p 1 p 2 d 0 t top cover tape bottom cover tape center lines of cavity cavity size see note 1 10 pitches cumulative tolerance on tape 0.20mm (0.008) e 1 f g user direction of feed e 2 w t 1 t 1 a 0 designation symbol value tolerance tape width w 8 -.0.1/+0.3 tape thickness t 1.1 max. pitch of the sprocket holes p 0 40.1 diameter of the sprocket holes d 0 1.5 0.1 -0/+0.1 distance e 1 1.75 0.1 distance (center to center) f 3.5 0.05 distance (center to center) p 2 2 0.05 cover tape thickness t 1 0.10 max. distance e 2 6.25 min. distance g 0.75 min. component pitch 0805/0603 p 1 40.1 0402 2 0.1 bottom side reel upper side direction of unreeling reel according to iso/dis 3639-2 ?12.75 (.502) + 0.15 (.006) - 0 ?80 (7.09) + 0 - 2 (.079) ?20.5 (.087) + 0.5 (.020) - 0 8.4 (.331) +0.15 (.006) 14.4 (.567) max. ?62 (2.44) 1.5 (.059) quantity per reel type suffix qty per reel nb - nc 12 bb 4000 nb 21 bf 2000
storage good solderability is maintained for at least twelve months, provided the components are stored in their as received packaging at less than 40c and 70% rh. solderability / leaching terminations to be well soldered after immersion in a 60/40 tin/lead solder bath at 235 5c for 2 1 seconds. terminations will resist leaching for at least the immersion times and conditions recommendations shown below. nb products are compatible with a wide range of soldering conditions consistent with good manufacturing practice for surface mount components. this includes pb free reflow processes with peak temperatures up to 270oc. recommended profiles for reflow and wave soldering are shown below for reference. nc products are recommended for lead soldering application or gluing techniques. surface mounting guide chip thermistor C application notes reflow soldering wave soldering 18 p/n termination solder solder immersion type tin/lead temp oc time seconds nc agpdpt 60/40 260 5 15 max nb nickel barrier 60/40 260 5 30 1 case p/nd1d2d3d4d5 size 0402 nb23 1.70 0.60 0.50 0.60 0.50 (.067) (.024) (.020) (.024) (.020) 0603 nb21 2.30 0.80 0.70 0.80 0.75 (.091) (.031) (.028) (0.31) (.030) 0805 nb12 3.00 1.00 1.00 1.00 1.25 (.118) (.039) (.039) (.039) (.049) 1206 nb20 4.00 1.00 2.00 1.00 2.50 (.157) (.039) (.079) (.039) (.098) case p/nd1d2d3d4d5 size 0603 nb21 3.10 1.20 0.70 1.20 0.75 (.122) (.047) (.028) (.047) (.030) 0805 nb12 4.00 1.50 1.00 1.50 1.25 (.157) (.059) (.039) (.059) (.049) 1206 nb20 5.00 1.50 2.00 1.50 1.60 (.197) (.059) (.079) (.059) (.063) reflow 300 250 200 150 100 50 0 solder temp. 10 sec. max 1min 1min (minimize soldering time) natural cooling 220oc to 250oc preheat a) the visual standards used for evaluation of solder joints will need to be modified as lead free joints are not as bright as with tin-lead pastes and the fillet may not be as large. b) resin color may darken slightly due to the increase in temperature required for the new pastes. c) lead-free solder pastes do not allow the same self align- ment as lead containing systems. standard mounting pads are acceptable, but machine set up may need to be modified. 300 250 200 150 100 50 0 0 50 100 150 200 250 300 ? pre-heating: 150c 15c / 60-90s ? max. peak gradient: 2.5c/s ? peak temperature: 245c 5c ? time at >230c: 40s max. temperature c time (s) wave 300 250 200 150 100 50 0 solder temp. 3 sec. max 1 to 2 min (preheat chips before soldering) t/maximum 150c preheat natural cooling 230oc to 250oc t d1 d2 d3 d4 d5 recommended soldering pad layout dimensions in mm (inches)
19 high precision resistance and an outstanding ability to reproduce the sensibility index b, make these ranges of products the types of thermistors ideal for temperature measurement applications. leaded or unleaded, these small size and rapid response time thermistors are able to meet the most accurate requirements. types nj 28 np 30 ni 24 nk 20 finish coated chip with phenolic coated chip with epoxy chip resin + varnish coated chip with epoxy awg30 insulated leads + tinned copper wires + silver plated nickel wires marking on packaging only operating temperature -55c to +150c tolerance on rn (25c) 1%, 2%, 3% maximum dissipation at 25c 0.16 w thermal dissipation factor* 3 mw/c 3 mw/c 2 mw/c thermal time constant 8 s 8 s 6 s response time < 2 s ntc accurate thermistors nj 28 C ni 24 C nk 20 table of values types rn at 25c () material code b (k) at 25c (%/c) n_ _ _ ka 0202 2,000 ka 3625 1% C 4.1 n_ _ _ ma 0302 3,000 ma 3960 0.5% C 4.5 n_ _ _ ma 0502 5,000 ma 3960 0.5% C 4.5 n_ _ _ ma 0103 10,000 ma 3960 0.5% C 4.5 n_ _ _ na 0103 10,000 na 4100 1% C 4.6 n_ _ _ pa 0203 20,000 pa 4235 1% C 4.8 n_ _ _ qa 0503 50,000 qa 4250 1% C 4.8 n_ _ _ ra 0104 100,000 ra 4380 1% C 4.9 2.8 (.110) max 2.8 (.110) max 35 (1.38) min 3 (.118) max 0.4 (.016) +10 % - 15% 2.4 (.094) max 2.4 (.094) max 35 (1.38) min 3 (.118) max 0.57 (.022) +7% -7% 3.0 (.118) max 3.0 (.118) max 35 (1.38) min 3 (.118) max 0.4 (.016) +10% -15% 0.75 (.030) 0.25 (.010) 1.75 (.069) 0.25 (0.10) 1.75 (.069) 0.25 (0.10) how to order nj28 ty p e ma material code ma (see table above) 0502 resistance 5 k f-- tolerance f (1%) * ?= add type as outlined above (example nj 2 8 ). resistance - temperature characteristics: pages 29 to 33. dimensions: millimeters (inches)
20 ntc thermistors manufacturing process nj 28 C ni 24 C nk 20
21 applications ? commodity product: 2 families nd or ne : general purpose nv : professional ? alarm and temperature measurement application ? temperature regulation application ? level detection application ? compensation application technology ? nd: epoxy-phenolic resin coating ne: epoxy resin coating (recommended for severe mounting conditions) nv: epoxy varnish coating ? leads: radial copper wire tinned ? marking: on package only for nd03 & ne03 nd/ne 06/09:nominal resistance and tolerance for 5%, 10% nv06/09: nominal resistance and tolerance ? delivery mode: bulk, reeled or ammopacked performance characteristics ty p e s general purpose professional nd03 or ne03 nd06 or ne06 nd09 or ne09 nv06 nv09 climatic category 55/125/56-434 55/125/56-434 operating temperature C55 to +150c C55 to +150c C55 to +150c C55 to +150c C55 to +150c tolerance on rn 330 to 1m : 5%, 10%, 20% 5%, 10%, 20% 2%, 5%, 10% 2%, 5%, 10% (25c) 5, 10, 20% 1500 to 150 k : 3% maximum dissipation at 25c 0.25 w 0.71 w 0.9 w 0.69 w 0.85 w thermal dissipation factor 5 mw/c 7.1 mw/c 9 mw/c 6.9 mw/c 8.5 mw/c thermal time constant 10 s 22 s 30 s 18 s 30 s response time < 3s standardization nv range : approved by nfc 93271 type: tn115 a for nv06 tn116 for nv09 list: gam-t1 list: lnz options consult factory for availability of options: ? other nominal resistance values ? other tolerances ? alternative lead materials or lengths ? controlled dimensions leaded discs n.03 n.06 n.09 ntc disc thermistors nd 03/06/09 ? ne 03/06/09 ? nv 06/09
22 ntc disc thermistors nd/ne 03 part number rn at 25c () material code b (k) at 25c (%/c) ( b/b ) n_03i00331 330 n_03i00471 470 i 3250 (1) C 3.7 n_03j00681 680 n_03j00102 1,000 j 3480 (2) C 3.9 n_03k00152 1,500 n_03k00222 2,200 k 3630 (2) C 4.0 n_03l00272 2,700 l 3790 (2) C 4.2 n_03l00332 3,300 n_03m00472 4,700 n_03m00682 6,800 m 3950 (2) C 4.4 n_03n00103 10,000 n_03n00153 15,000 n 4080 (2) C 4.6 n_03p00223 22,000 n_03p00333 33,000 p 4220 (2) C 4.7 n_03q00473 47,000 n_03q00683 68,000 q 4300 (2) C 4.7 n_03r00104 100,000 n_03r00154 150,000 r 4400 (2) C 4.8 n_03s00224 220,000 s 4520 (2) C 5.0 n_03t00334 330,000 t 4630 (2) C 5.1 n_03t00474 470,000 n_03u00105 1,000,000 u 4840 (2) C 5.3 (1) 5% (2) 3% 35 (1.38) min 3.5 (.138) max 3 (.118) max ? 0.5 (.020) +10 % -0.05 2.54 (0.1) 3 (.118) max table of values nd03/ne03 type nd03/ne03
23 ntc disc thermistors nd/ne/nv 06 part number rn at 25c () material code b (k) at 25c (%/c) ( b/b ) n_06j00151 150 n_06j00221 220 j 3480 (2) C 3.9 n_06k00331 330 n_06k00471 470 k 3630 (2) C 4.0 n_06l00681 680 l 3790 (2) C 4.2 n_06l00102 1,000 n_06m00152 1,500 m 3950 (2) C 4.4 n_06n00222 2,200 n_06n00332 3,300 n 4080 (2) C 4.6 n_06p00472 4,700 n_06p00682 6,800 p 4220 (2) C 4.7 n_06p00103 10,000 n_06q00153 15,000 q 4300 (2) C 4.7 n_06q00223 22,000 n_06r00333 33,000 r 4400 (2) C 4.8 n_06s00473 47,000 s 4520 (2) C 5.0 n_06s00683 68,000 n_06t00104 100,000 t 4630 (2) C 5.1 n_06u00154 150,000 n_06u00224 220,000 u 4840 (2) C 5.3 n_06u00334 330,000 (1) 5% (2) 3% 35 (1.38) min 6.3 (.248) max 3.5 (.138) max ? 0.6 (.024) +10% -0.05 5.08 (0.2) 3 (.118) max table of values nd06/ne06/nv06 nv06 35 (1.38) min 6.3 (.248) max 4 (.157) max ? 0.6 (.024) +10% -0.05 5.08 (0.2) 3 (.118) max nd06/ne06 for other resistance values, please consult us.
24 ntc disc thermistors nd/ne/nv 09 table of values nd09/ne09/nv09 35 (.138) min 9.5 (.374) max 3.5 (.138) max ? 0.6 (.024) +10 % -0.05 5.08 (.02) 3 (.118) max nv09 35 (.138) min 9.5 (.375) max 5 (.197) max ? 0.6 (.024) +10 % -0.05 5.08 (.02) 3 (.118) max nd09/ne09 part number rn at 25c () material code b (k) at 25c (%/c) ( b/b ) n_09j00680 68 j 3480 (2) C 3.9 n_09j00101 100 n_09k00151 150 k 3630 (2) C 4.0 n_09k00221 220 n_09l00331 330 l 3790 (2) C 4.2 n_09m00471 470 m 3950 (2) C 4.4 n_09m00681 680 n_09n00102 1,000 n 4080 (2) C 4.6 n_09n00152 1,500 n_09p00222 2,200 n_09p00332 3,300 p 4220 (2) C 4.7 n_09q00472 4,700 q 4300 (2) C 4.7 n_09q00682 6,800 n_09r00103 10,000 r 4400 (2) C 4.8 n_09r00153 15,000 n_09s00223 22,000 s 4520 (2) C 5.0 n_09t00333 33,000 t 4630 (2) C 5.1 n_09t00473 47,000 n_09u00683 68,000 n_09u00104 100,000 u 4840 (2) C 5.3 n_09u00154 150,000 (1) 5% (2) 3%
25 types suffix h or ho leads quantity/size packaging nd/ne ca 16 0.5 straight 3000 ammopack 03 (0.630 0.020) & cb 16 0.5 straight 3000 reel nj28 (0.630 0.020) cc 19.5 0.5 straight 3000 ammopack (0.768 0.020) cd 19.5 0.5 straight 3000 reel (0.768 0.020) nd/ne/nv da 16 0.5 straight 1500 ammopack 06/09 (0.630 0.020) db 16 0.5 straight 1500 reel (0.630 0.020) dc 19.5 0.5 straight 1500 ammopack (0.768 0.020) dd 19.5 0.5 straight 1500 reel (0.768 0.020) dl 16 0.5 kinked 1500 ammopack (0.630 0.020) dm 16 0.5) kinked 1500 reel (0.630 0.020) dn 19.5 0.5 kinked 1500 ammopack (0.768 0.020) dp 19.5 0.5 kinked 1500 reel (0.768 0.020) millimeters (inches) type quantity/box nd/ne03 3000 nd/ne06 1500 nd/ne09 1500 nv06 100 nv09 100 ni24 nj28 1000 nk20 ? bulk ? reel & ammopack how to order nd06 ty p e p0 material code p 0103 resistance 10 k k tolerance k (10%) C C packaging bulk ntc disc thermistors packaging for automatic insertion h 2.54 (0.10) h ho 5.08 (0.20) ntc ty p e nd03 ne03 nj28 ntc ty p e s nd/ne/nv 06/09 packaging and kink suffixes tables below indicate the suffixes to specify when ordering to get the required kink and packaging. for devices on tape, it is necessary to specify the height (h or ho) which is the distance between the tape axis (sprocket holes axis) and the seating plane on the printed circuit board. the following types can be ordered on tape either in ammopack (fan folder) or on reel in accordance with iec 286-2. C straight leads: h represents the distance between the sprocket holes axis and the bottom plane of component body (base of resin or base of stand off). C kinked leads and flat leads: ho represents the distance between the sprocket holes axis and the base on the knee (kinked leads) or the bottom of the flat part (flat leads).
26 8 (.315) 30 (1.18) interlayer paper 42 (1.66) inside 48(1.99) outside 31 (1.22) 360 (14.2) automatic insertion ntc disc thermistors taping characteristics missing components a maximum of 3 consecutive components may be missing from the bandolier, surrounded by at least 6 filled positions. the number of missing components may not exceed 0.5% of the total per packing module. the beginning and the end of tape exhibit 8 or 9 blank positions. h i l ammopack reel li h 330 (13.0) 46 (1.81) 290 (11.4) hh h 1 h 1 h p 1 p 0 p d w e t ab w 2 w 1 h 0 e i 2 d 0 p p w 0 a - b cross section direction of unreeling marking on this side adhesive tape reference plane value tolerance dimensions characteristics 18 +1 / -0.5 w leading tape width 60.3w 0 adhesive tape width 9 +0.75 / -0.5 w 1 sprocket hole position 3 max. w 2 distance between the top of the tape and the adhesive 40.2d 0 diameter of sprocket hole 16/19.5 0.5 h 0 distance between the tape axis and the seating plane of the component h 1 distance between the tape axis and the top of component body value tolerance dimensions characteristics 12.7 0.2 p 0 sprocket holes pitch 254 1 C distance between 21 consecutive holes 20 pitches 0.7 0.2 t total thickness of tape 2.54 5.08 +0.6 e lead spacing -0.1 5.08 3.85 0.7 p 1 distance between the sprocket hole axis and the lead axis 12.7 1.0 p spacing of components 0.5 0.6 5% d lead diameter 01.3 3 p verticality of components 02 3 h alignment of components dimensions: millimeters (inches)
27 ntc leadless disc thermistors ty p e s n r marking on package only / on parts upon request operating temperature -40c to +200c custom - designed products defined with: values and tolerances d dr 1 r 1 /r 1 at t 1 e e r 2 r 2 /r 2 at t 2 , . . . design of the thermistor choice of the resistances if the application is to measure the temperature around a defined point, a unique nominal resistance can be chosen (for example, among standard values of the nd range prod- ucts presented on pages 20 to 24). when it is required to measure the temperature over selected ranges t 1 Ct 2 , t 2 Ct 3 , ..., the corresponding resistance r 1 , r 2 , r 3 , ..., must be such that they can be located on the r (t) characteristic of an existing ntc material (for example among standard materials whose r (t) are displayed on pages 29 to 33). the resistances must also be compatible with the resistivity of the material and the dimensions of the thermistor. choice of the tolerances the precision of the temperature measurement determines the calculation of the tolerance on the resistance: r/r = (%/c). t (c) for example, the ntc nr55--3049-99, using n5 material (r (t) characteristic displayed on page 31), requires a preci- sion of 1c over the temperature range 110c - 120c. the tolerances can be calculated: r 110c /r 110c = 1c* 2.91%/c = 2.91% r 120c /r 120c = 1c* 2.76%/c = 2.76% *for your specific requirements, please consult us. d metallization e physical data (dim. in mm) how to order nr55 - ty p e - 3002 - 99 p/n code this type of product is widely used in automotive and consumer applications. they are assembled in custom-probes for sensing the temperature of liquids (water, oil, ...), gases or surface of any other component. the metallization covers completely the surfaces of the thermistor. the particularly flat and smooth surfaces ensure an excellent electrical and thermal contact under pressure.
28 ntc leadless disc thermistors ty p e s d e material b r 1 r 1 t 1 r 2 r 2 t 2 r 3 r 3 t 3 code (k) at t 1 (c) at t 2 (c) at t 3 (c) nr 55 -- 3002 - 99 5.5 (.217) 0.5 (.020) 1.1 (.043) 0.4 (.016) n5 4160 1230 7.5% 40 160 5% 96.5 C C nr 67 -- 3068 - 99 6.7 (.264) 0.5 (.020) 1.7 (.067) 0.3 (.012) n 4080 150 3.3% 100 51 5.3% 140 C C nr 55 -- 3049 - 99 5.5 (.217) 0.5 (.020) 1.0 (.040) 0.2 (.008) n5 4160 107 2.9% 110 80.6 2.8% 120 C C nr 55 -- 3046 - 99 5.5 (.217) 0.5 (.020) 1.3 (.051) 0.4 (.016) s 4520 48600 7.5% 25 3210 5% 90 C C nr 49 -- 3119 - 99 4.9 (.193) 0.3 (.012) 1.5 (.060) 0.4 (.016) m 3950 840 10% 37.8 84 5% 104.4 C C nr 55 -- 3114 - 99 5.5 (.217) 0.4 (.016) 1.0 (.040) 0.2 (.008) p 4220 5000 10% 25 C C C C nr 70 -- 3121 - 99 7.0 (.275) 0.3 (.012) 1.2 (.047) 0.2 (.008) l 3790 210 10% 40 40 7.5% 90 30 6.7% 100 nr 29 -- 3107 - 99 2.9 (.014) 0.3 (.012) 1.7 (.067) 0.3 (.012) k 3630 2050 6% 25 193 5.4% 96.5 C C nr 55 -- 3122 - 99 5.5 (.217) 0.5 (.020) 1.5 (.060) 0.4 (.016) j 3480 210 5% 25 C C C C nr 55 -- 3126 - 99 5.5 (.217) 0.5 (.020) 1.0 (.040) 0.2 (.008) p 4220 3340 10% 25 264 7% 90 107 7% 120 nr 47 -- 3116 - 99 4.7 (.185) 0.4 (.016) 1.2 (.047) 0.2 (.008) r 4400 33000 2% 25 C C C C nr 49 -- 3113 - 99 4.9 (.193) 0.3 (.012) 1.2 (.047) 0.2 (.008) n 4080 1680 10% 40 382 6.7% 80 176 5% 105 nr 47 -- 3101 - 99 4.6 (.181) 0.3 (.012) 1.4 (.055) 0.3 (.012) j 3480 146 13% 40 22 10% 100 C C nr 55 -- 3071 - 99 5.8 (.228) 0.3 (.012) 1.0 (.040) 0.2 (.008) l 3790 262 8.7% 40 120 10% 60 35.5 7.8% 100 nr 61 -- 3063 - 99 6.1 (.240) 0.3 (.012) 1.5 (.060) 0.3 (.012) n 4080 760 9.2% 50 130 8.5% 100 56.6 8.5% 130 nr 67 -- 3053 - 99 6.7 (.264) 0.4 (.016) 1.7 (.067) 0.3 (.012) n 4080 540 11% 60 144 7% 100 C C nr 50 -- 3048 - 99 5.0 (.197) 0.5 (.020) 1.5 (.060) 0.5 (.020) j 3480 233 10% 25 13.3 7% 121 C C nr 60 -- 3021 - 99 6.0 (.236) 0.5 (.020) 3.2 (.125) 0.3 (.012) p 4220 3640 3% 40 457 3% 96.5 C C nr 55 -- 3016 - 99 5.5 (.217) 0.5 (.020) 1.1 (.043) 0.4 (.016) q 4300 5500 9% 40 650 7.7% 96.5 C C we present below some examples of our custom - designed products as an illustration of the different ways to define products. resistance - temperature characteristics: pages 29 to 33. dimensions: millimeters (inches)
29 material code b (k) t i 3250 j-j5 3480 k 3630 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 42.35 21.9 - 5.98 51.74 20.5 - 6.43 56.26 21.4 - 6.46 - 55 - 50 31.48 20.0 - 5.78 37.97 17.7 - 6.21 41.21 18.5 - 6.26 - 50 - 45 23.63 18.1 - 5.59 28.15 15.2 - 6.01 30.47 15.9 - 6.06 - 45 - 40 17.91 16.3 - 5.41 21.07 13.0 - 5.81 22.73 13.6 - 5.88 - 40 - 35 13.70 14.6 - 5.23 15.91 11.0 - 5.62 17.11 11.5 - 5.70 - 35 - 30 10.58 13.1 - 5.06 12.13 9.3 - 5.44 12.98 9.7 - 5.53 - 30 - 25 8.232 11.6 - 4.90 9.320 7.8 - 5.26 9.930 8.1 - 5.36 - 25 - 20 6.460 10.1 - 4.74 7.221 6.4 - 5.10 7.654 6.7 - 5.21 - 20 - 15 5.110 8.8 - 4.59 5.640 5.2 - 4.94 5.945 5.4 - 5.05 - 15 - 10 4.072 7.5 - 4.45 4.438 4.2 - 4.78 4.650 4.4 - 4.91 - 10 - 5 3.268 6.3 - 4.31 3.517 3.3 - 4.64 3.663 3.4 - 4.76 - 5 0 2.641 5.1 - 4.18 2.807 2.5 - 4.50 2.905 2.6 - 4.63 0 5 2.148 4.0 - 4.05 2.255 1.8 - 4.36 2.319 1.9 - 4.50 5 10 1.759 2.9 - 3.92 1.824 1.2 - 4.23 1.862 1.3 - 4.37 10 15 1.449 1.9 - 3.81 1.484 0.7 - 4.10 1.505 0.8 - 4.25 15 20 1.200 0.9 - 3.69 1.215 0.3 - 3.98 1.223 0.3 - 4.13 20 25 1.000 0.0 - 3.58 1.0000 0.0 - 3.87 1.0000 0.0 - 4.01 25 30 .8377 0.9 - 3.48 .8278 0.3 - 3.76 .8219 0.3 - 3.90 30 35 .7054 1.8 - 3.38 .6889 0.7 - 3.65 .6792 0.7 - 3.80 35 40 .5969 2.6 - 3.28 .5763 1.1 - 3.55 .5641 1.1 - 3.69 40 45 .5076 3.5 - 3.19 .4845 1.5 - 3.45 .4708 1.6 - 3.59 45 50 .4336 4.3 - 3.10 .4092 2.0 - 3.35 .3949 2.1 - 3.50 50 55 .3720 5.1 - 3.01 .3473 2.5 - 3.26 .3327 2.6 - 3.41 55 60 .3206 5.9 - 2.93 .2960 3.0 - 3.17 .2816 3.1 - 3.32 60 65 .2774 6.6 - 2.85 .2534 3.5 - 3.09 .2393 3.7 - 3.23 65 70 .2410 7.4 - 2.77 .2178 4.1 - 3.01 .2043 4.3 - 3.14 70 75 .2102 8.1 - 2.70 .1879 4.7 - 2.93 .1751 4.9 - 3.06 75 80 .1839 8.8 - 2.63 .1628 5.3 - 2.85 .1507 5.5 - 2.99 80 85 .1616 9.5 - 2.56 .1415 5.9 - 2.78 .1301 6.1 - 2.91 85 90 .1424 10.2 - 2.49 .1235 6.5 - 2.70 .1128 6.8 - 2.84 90 95 .1259 10.9 - 2.43 .1081 7.1 - 2.64 .09812 7.4 - 2.77 95 100 .1117 11.5 - 2.36 .09500 7.7 - 2.57 .08565 8.1 - 2.70 100 105 .09938 12.2 - 2.30 .08373 8.4 - 2.50 .07502 8.7 - 2.63 105 110 .08869 12.8 - 2.25 .07403 9.0 - 2.44 .06592 9.4 - 2.57 110 115 .07938 13.4 - 2.19 .06565 9.7 - 2.38 .05810 10.1 - 2.50 115 120 .07124 14.0 - 2.14 .05838 10.3 - 2.33 .05137 10.8 - 2.44 120 125 .06410 14.6 - 2.08 .05207 11.0 - 2.27 .04555 11.5 - 2.39 125 130 .05783 15.2 - 2.03 .04567 11.6 - 2.22 .04050 12.2 - 2.33 130 135 .05230 15.7 - 1.98 .04175 12.3 - 2.16 .03611 12.8 - 2.27 135 140 .04741 16.3 - 1.94 .03753 13.0 - 2.11 .03229 13.5 - 2.22 140 145 .04308 16.8 - 1.89 .03382 13.6 - 2.06 .02894 14.2 - 2.17 145 150 .03924 17.4 - 1.85 .03055 14.3 - 2.02 .02600 14.9 - 2.12 150 tables of resistance vs temperature material code b (k) t ka 3625 kc 3470 l 3790 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) -55 61.21 7.1 - 6.77 60.08 34.0 - 7.00 82.52 22.3 - 7.38 -55 -50 44.24 6.1 - 6.53 43.19 29.4 - 6.71 58.01 19.3 - 7.11 -50 -45 32.33 5.3 - 6.30 31.42 25.3 - 6.44 41.30 16.6 - 6.84 -45 -40 23.88 4.5 - 6.08 23.13 21.6 - 6.18 29.75 14.2 - 6.60 -40 -35 17.81 3.8 - 5.88 17.22 18.4 - 5.94 21.67 12.0 - 6.36 -35 -30 13.41 3.2 - 5.68 12.95 15.5 - 5.71 15.96 10.1 - 6.13 -30 -25 10.19 2.7 - 5.49 9.842 12.9 - 5.49 11.88 8.5 - 5.92 -25 -20 7.814 2.2 - 5.31 7.550 10.7 - 5.29 8.930 7.0 - 5.72 -20 -15 6.040 1.8 - 5.14 5.845 8.7 - 5.10 6.776 5.7 - 5.32 -15 -10 4.707 1.5 - 4.98 4.564 6.9 - 4.91 5.188 4.5 - 5.34 -10 -5 3.696 1.1 - 4.83 3.594 5.4 - 4.74 4.007 3.6 - 5.16 -5 0 2.923 .9 - 4.68 2.853 4.1 - 4.58 3.120 2.7 - 4.99 0 5 2.329 .6 - 4.53 2.281 3.0 - 4.42 2.449 2.0 - 4.83 5 10 1.867 .4 - 4.40 1.838 2.0 - 4.27 1.937 1.3 - 4.68 10 15 1.507 .3 - 4.27 1.491 1.2 - 4.13 1.543 .8 - 4.53 15 20 1.224 .1 - 4.14 1.217 0.5 - 4.00 1.238 .4 - 4.39 20 25 1.0000 0.0 - 4.02 1.0000 0.0 - 3.90 1.0000 0.0 - 4.25 25 30 .8217 .1 - 3.91 .8267 0.5 - 3.74 .8129 .3 - 4.12 30 35 .6788 .2 - 3.80 .6873 1.1 - 3.63 .6648 .7 - 4.00 35 40 .5638 .4 - 3.69 .5747 1.8 - 3.52 .5409 1.2 - 3.88 40 45 .4707 .5 - 3.59 .4830 2.5 - 3.41 .4525 1.6 - 3.77 45 50 .3948 .7 - 3.49 .4081 3.3 - 3.31 .3765 2.2 - 3.66 50 55 .3328 .9 - 3.40 .3465 4.1 - 3.21 .3148 2.7 - 3.55 55 60 .2818 1.0 - 3.31 .2955 5.0 - 3.12 .2646 3.3 - 3.45 60 65 .2396 1.2 - 3.22 .2532 5.9 - 3.03 .2235 3.8 - 3.36 65 70 .2046 1.4 - 3.14 .2179 6.8 - 2.94 .1896 4.5 - 3.26 70 75 .1754 1.6 - 3.06 .1883 7.8 - 2.86 .1616 5.1 - 3.17 75 80 .1510 1.8 - 2.98 .1634 8.7 - 2.78 .1383 5.7 - 3.09 80 85 .1305 2.0 - 2.90 .1423 9.7 - 2.71 .1189 6.4 - 3.00 85 90 .1131 2.3 - 2.83 .12441 10.8 - 2.63 .1026 7.1 - 2.92 90 95 .09846 2.5 - 2.76 .10915 11.8 - 2.56 .08889 7.7 - 2.85 95 100 .08597 2.7 - 2.69 .09608 12.9 - 2.50 .07729 8.4 - 2.77 100 105 .07531 2.9 - 2.63 .08486 13.9 - 2.43 .06745 9.1 - 2.70 105 110 .06618 3.1 - 2.56 .07519 15.0 - 2.37 .05906 9.8 - 2.63 110 115 .05834 3.4 - 2.50 .06683 16.1 - 2.31 .05189 10.5 - 2.57 115 120 .05158 3.6 - 2.44 .05957 17.2 - 2.25 .04573 11.3 - 2.50 120 125 .04573 3.8 - 2.39 .05325 18.3 - 2.20 .04043 12.0 - 2.44 125 130 .04066 4.0 - 2.33 .04774 19.4 - 2.14 .03585 12.7 - 2.38 130 135 .03625 4.3 - 2.28 .04290 20.5 - 2.09 .03188 13.4 - 2.33 135 140 .03240 4.5 - 2.23 .03866 21.6 - 2.04 .02843 14.1 - 2.27 140 145 .02903 4.7 - 2.18 .03492 22.7 - 1.99 .02543 14.8 - 2.22 145 150 .02608 5.0 - 2.13 .03162 23.8 - 1.95 .02279 15.6 - 2.17 150
30 tables of resistance vs temperature material code b (k) t l2 3805 m 3950 ma 3960 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 62.45 22.4 - 6.4 99.56 23.2 - 7.71 104.2 3.9 - 7.89 - 55 - 50 45.40 19.3 - 6.2 68.95 20.1 - 7.42 71.63 3.4 - 7.57 - 50 - 45 33.33 16.6 - 6.0 48.38 17.3 - 7.15 49.94 2.9 - 7.28 - 45 - 40 24.70 14.2 - 5.9 34.37 14.8 - 6.89 35.28 2.5 - 7.00 - 40 - 35 18.47 12.1 - 5.7 24.71 12.5 - 6.64 25.25 2.1 - 6.73 - 35 - 30 13.92 10.2 - 5.5 17.96 10.6 - 6.41 18.28 1.8 - 6.48 - 30 - 25 10.58 8.5 - 5.4 13.20 8.8 - 6.18 13.39 1.5 - 6.25 - 25 - 20 8.110 7.0 - 5.2 9.803 7.3 - 5.97 9.917 1.2 - 6.02 - 20 - 15 6.260 5.7 - 5.1 7.351 5.9 - 5.77 7.419 1.0 - 5.81 - 15 - 10 4.867 4.6 - 4.9 5.585 4.7 - 5.57 5.605 .8 - 5.61 - 10 - 5 3.810 3.6 - 4.8 4.251 3.7 - 5.39 4.275 .6 - 5.42 - 5 0 3.003 2.7 - 4.7 3.275 2.8 - 5.21 3.289 .5 - 5.24 0 5 2.382 2.0 - 4.5 2.544 2.0 - 5.04 2.552 .3 - 5.06 5 10 1.901 1.3 - 4.4 1.992 1.4 - 4.88 1.997 .2 - 4.90 10 15 1.526 0.8 - 4.3 1.572 .8 - 4.73 1.574 .1 - 4.74 15 20 1.232 0.4 - 4.2 1.249 .4 - 4.58 1.250 .1 - 4.59 20 25 1.0000 0.0 - 4.1 1.0000 0.0 - 4.44 1.0000 0.0 - 4.45 25 30 .8161 0.3 - 4.0 .8057 .4 - 4.30 .8053 .1 - 4.31 30 35 .6694 0.7 - 3.9 .6534 .8 - 4.17 .6527 .1 - 4.18 35 40 .5518 1.2 - 3.8 .5331 1.2 - 4.05 .5323 .2 - 4.06 40 45 .4570 1.7 - 3.7 .4376 1.7 - 3.93 .4367 .3 - 3.94 45 50 .3802 2.2 - 3.6 .3612 2.2 -3.81 .3604 .4 - 3.82 50 55 .3178 2.7 - 3.5 .2998 2.8 - 3.71 .2990 .5 - 3.71 55 60 .2667 3.3 - 3.5 .2501 3.4 - 3.60 .2493 .6 - 3.61 60 65 .2248 3.9 - 3.4 .2097 4.0 - 3.50 .2090 .7 - 3.51 65 70 .1902 4.5 - 3.3 .1767 4.6 - 3.40 .1760 .8 - 3.41 70 75 .1615 5.1 - 3.2 .1496 5.3 - 3.31 .1489 .9 - 3.32 75 80 .1377 5.8 - 3.1 .1272 6.0 - 3.22 .1266 1.0 - 3.23 80 85 .1179 6.4 - 3.1 .1087 6.7 - 3.13 .1081 1.1 - 3.14 85 90 .1012 7.1 - 3.0 .09321 7.4 - 3.05 .09262 1.2 - 3.06 90 95 .08721 7.8 - 2.9 .08027 8.1 - 2.97 .07970 1.3 - 2.98 95 100 .07539 8.5 - 2.9 .06939 8.8 - 2.89 .06885 1.5 - 2.91 100 105 .06538 9.2 - 2.8 .06020 9.5 - 2.82 .05969 1.6 - 2.83 105 110 .05688 9.9 - 2.8 .05243 10.2 - 2.75 .05194 1.7 - 2.76 110 115 .04963 10.6 - 2.7 .04581 11.0 - 2.68 .04535 1.8 - 2.69 115 120 .04343 11.3 - 2.6 .04017 11.7 - 2.61 .03973 2.0 - 2.63 120 125 .03812 12.0 - 2.6 .03533 12.5 - 2.55 .03491 2.1 - 2.56 125 130 .03354 12.7 - 2.5 .03117 13.2 - 2.48 .03077 2.2 - 2.50 130 135 .02960 13.5 - 2.5 .02759 14.0 - 2.42 .02721 2.3 - 2.44 135 140 .02618 14.2 - 2.4 .02449 14.7 - 2.37 .02412 2.5 - 2.39 140 145 .02322 14.9 - 2.4 .02180 15.5 - 2.31 .02145 2.6 - 2.33 145 150 .02064 15.6 - 2.3 .01945 16.2 - 2.26 .01912 2.7 - 2.28 150 material code b (k) t mc 3910 n 4080 na 4100 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) -55 100.6 23.0 - 7.88 110.1 24.0 - 7.81 109.5 8.0 - 7.83 -55 -50 69.29 19.9 - 7.55 75.90 20.7 - 7.53 75.42 6.9 - 7.54 -50 -45 48.41 17.1 - 7.24 52.98 17.8 - 7.26 52.63 6.0 - 7.27 -45 -40 34.27 14.6 - 6.96 37.43 15.2 - 7.01 37.18 5.1 - 7.01 -40 -35 24.57 12.4 - 6.68 26.75 12.9 - 6.77 26.58 4.3 - 6.76 -35 -30 17.83 10.5 - 6.42 19.33 10.9 - 6.54 19.22 3.7 - 6.52 -30 -25 13.09 8.7 - 6.18 14.12 9.1 - 6.32 14.04 3.1 - 6.30 -25 -20 9.714 7.2 - 5.95 10.41 7.5 - 6.10 10.37 2.5 - 6.09 -20 -15 7.283 5.9 - 5.73 7.758 6.1 - 5.90 7.730 2.1 - 5.89 -15 -10 5.515 4.7 - 5.53 5.834 4.9 - 5.71 5.817 1.6 - 5.70 -10 -5 4.215 3.7 - 5.33 4.426 3.8 - 5.53 4.416 1.3 - 5.51 -5 0 3.251 2.8 - 5.15 3.387 2.9 - 5.35 3.382 1.0 - 5.34 0 5 2.528 2.0 - 4.97 2.614 2.1 - 5.18 2.611 .7 - 5.17 5 10 1.983 1.4 - 4.80 2.033 1.4 - 5.02 2.032 .5 - 5.01 10 15 1.567 0.8 - 4.65 1.593 .9 - 4.87 1.593 .3 - 4.86 15 20 1.247 0.4 - 4.49 1.258 .4 - 4.72 1.258 .1 - 4.71 20 25 1.0000 0.0 - 4.40 1.0000 0.0 - 4.57 1.0000 0.0 - 4.57 25 30 .8072 0.4 - 4.21 .8004 .4 - 4.44 .8004 .1 - 4.44 30 35 .6558 0.8 - 4.08 .6448 .8 - 4.31 .6446 .3 - 4.31 35 40 .5361 1.2 - 3.96 .5228 1.3 - 4.18 .5224 .4 - 4.19 40 45 .4409 1.7 - 3.84 .4264 1.8 - 4.06 .4258 .6 - 4.07 45 50 .3647 2.2 - 3.72 .3497 2.3 - 3.94 .3491 .8 - 3.96 50 55 .3033 2.8 - 3.61 .2885 2.9 - 3.83 .2877 1.0 - 3.85 55 60 .2535 3.4 - 3.51 .2392 3.5 - 3.72 .2383 1.2 - 3.74 60 65 .2130 4.0 - 3.41 .1994 4.1 - 3.62 .1984 1.4 - 3.64 65 70 .1798 4.6 - 3.31 .1671 4.8 - 3.52 .1660 1.6 - 3.55 70 75 .1525 5.2 - 3.22 .1406 5.5 - 3.42 .1396 1.8 - 3.45 75 80 .1299 5.9 - 3.13 .1189 6.2 - 3.33 .1178 2.1 - 3.36 80 85 .1112 6.6 - 3.05 .1010 6.9 - 3.24 .09991 2.3 - 3.28 85 90 .09551 7.3 - 2.97 .08617 7.6 - 3.16 .08507 2.5 - 3.20 90 95 .08238 8.0 - 2.89 .07381 8.3 - 3.07 .07273 2.8 - 3.12 95 100 .07132 8.7 - 2.81 .06347 9.1 - 2.99 .06241 3.0 - 3.04 100 105 .06198 9.4 - 2.74 .05480 9.8 - 2.92 .05376 3.3 - 2.96 105 110 .05405 10.1 - 2.67 .04148 10.6 - 2.84 .04648 3.5 - 2.89 110 115 .04730 10.9 - 2.60 .04129 11.3 - 2.77 .04032 3.8 - 2.82 115 120 .04153 11.6 - 2.54 .03603 12.1 - 2.70 .03510 4.1 - 2.76 120 125 .03657 12.3 - 2.48 .03155 12.9 - 2.64 .03065 4.3 - 2.69 125 130 .03231 13.1 - 2.42 .02771 13.7 - 2.57 .02685 4.6 - 2.63 130 135 .02863 13.8 - 2.36 .02442 14.4 - 2.51 .02359 4.8 - 2.57 135 140 .02544 14.6 - 2.30 .02158 15.2 - 2.45 .02079 5.1 - 2.51 140 145 .02267 15.3 - 2.25 .01913 16.0 - 2.39 .01838 5.4 - 2.45 145 150 .02025 16.1 - 2.20 .01700 16.8 - 2.34 .01629 5.6 - 2.40 150
31 material code b (k) t p 4220 pa 4235 q 4300 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 121.3 24.8 - 7.88 23.3 8.3 - 8.00 98.02 25.5 - 7.14 - 55 - 50 83.32 21.4 - 7.61 84.31 7.2 - 7.71 69.51 22.0 - 6.95 - 50 - 45 57.91 18.4 - 7.36 58.37 6.2 - 7.43 49.72 18.9 - 6.77 - 45 - 40 40.71 15.8 - 7.11 40.92 5.3 -7.17 35.86 16.2 - 6.59 - 40 - 35 28.95 13.4 - 6.88 29.03 4.5 - 6.92 26.08 13.7 - 6.42 - 35 - 30 20.80 11.3 - 6.66 20.83 3.8 - 6.69 19.12 11.6 - 6.26 - 30 - 25 15.10 9.4 - 6.44 15.10 3.2 - 6.46 14.12 9.7 - 6.10 - 25 - 20 11.07 7.8 - 6.24 11.07 2.6 - 6.25 10.51 8.0 - 5.94 - 20 - 15 8.196 6.3 - 6.04 8.189 2.1 - 6.05 7.876 6.5 - 5.79 - 15 - 10 6.123 5.1 - 5.85 6.117 1.7 - 5.85 5.946 5.2 - 5.64 - 10 - 5 4.615 4.0 - 5.67 4.610 1.3 - 5.67 4.520 4.1 - 5.50 - 5 0 3.507 3.0 - 5.49 3.504 1.0 - 5.49 3.460 3.1 - 5.36 0 5 2.688 2.2 - 5.33 2.686 .7 - 5.32 2.666 2.2 - 5.23 5 10 2.078 1.5 - 5.16 2.075 .5 - 5.16 2.067 1.5 - 5.09 10 15 1.616 .9 - 5.01 1.615 .3 - 5.01 1.613 .9 - 4.96 15 20 1.267 .4 - 4.86 1.266 .1 - 4.86 1.266 .4 - 4.84 20 25 1.0000 0.0 - 4.72 1.0000 0.0 - 4.72 1.0000 0.0 - 4.72 25 30 .7949 .4 - 4.58 .7949 .1 - 4.58 .7944 .4 - 4.60 30 35 .6360 .8 - 4.45 .6359 .3 - 4.45 .6347 .8 - 4.48 35 40 .5120 1.3 - 4.32 .5119 .4 - 4.32 .5099 1.3 - 4.37 40 45 .4148 1.8 - 4.20 .4145 .6 - 4.20 .4119 1.9 - 4.26 45 50 .3380 2.4 - 4.06 .3376 .8 - 4.09 .3345 2.5 - 4.15 50 55 .2769 3.0 - 3.96 .2765 1.0 - 3.98 .2730 3.1 - 4.05 55 60 .2282 3.6 - 3.86 .2276 1.2 - 3.87 .2239 3.7 - 3.95 60 65 .1890 4.3 - 3.75 .1883 1.4 - 3.77 .1846 4.4 - 3.85 65 70 .1573 5.0 - 3.65 .1566 1.7 - 3.67 .1529 5.1 - 3.75 70 75 .1316 5.7 - 3.55 .1308 1.9 - 3.58 .1272 5.8 - 3.66 75 80 .1106 6.4 - 3.45 .1098 2.1 - 3.48 .1063 6.5 - 3.57 80 85 .09338 7.1 - 3.36 .09258 2.4 - 3.40 .08928 7.3 - 3.48 85 90 .07919 7.9 - 3.28 .07838 2.6 - 3.31 .07527 8.1 - 3.39 90 95 .06744 8.6 - 3.19 .06662 2.9 - 3.23 .06373 8.8 - 3.31 95 100 .05767 9.4 - 3.11 .05686 3.1 - 3.15 .05417 9.6 - 3.23 100 105 .04951 10.2 - 3.03 .04871 3.4 - 3.07 .04623 10.4 - 3.15 105 110 .04267 10.9 - 2.95 .04189 3.7 - 3.00 .03961 11.2 - 3.07 110 115 .03691 11.7 - 2.88 .03614 3.9 - 2.93 .03405 12.0 - 3.00 115 120 .03204 12.5 - 2.81 .03130 4.2 - 2.86 .02939 12.9 - 2.93 120 125 .02791 13.3 - 2.74 .02719 4.5 - 2.79 .02545 13.7 - 2.86 125 130 .02440 14.1 - 2.67 .02370 4.7 - 2.73 .02211 14.5 - 2.79 130 135 .02139 14.9 - 2.61 .02072 5.0 - 2.67 .01928 15.3 - 2.72 135 140 .01882 15.7 - 2.55 .01817 5.3 - 2.61 .01686 16.1 - 2.66 140 145 .01660 16.5 - 2.49 .01598 5.5 - 2.55 .01479 17.0 - 2.60 145 150 .01469 17.3 - 2.43 .01410 5.8 - 2.49 .01302 17.8 - 2.54 150 material code b (k) t nc 4080 ne 4100 n5 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 105.44 24.0 - 7.5 97.27 24.1 - 7.2 115.8 16.3 - 7.83 - 55 - 50 72.89 20.7 - 7.2 67.99 20.8 - 7.0 79.70 14.1 - 7.56 - 50 - 45 51.04 17.8 - 7.0 48.08 17.9 - 6.8 55.53 12.1 - 7.30 - 45 - 40 36.18 15.2 - 6.7 34.39 15.3 - 6.5 39.14 10.4 - 7.06 - 40 - 35 25.94 12.9 - 6.5 24.85 13.0 - 6.3 27.90 8.8 - 6.82 - 35 - 30 18.81 10.9 - 6.3 18.15 11.0 - 6.1 20.11 7.4 - 6.60 - 30 - 25 13.78 9.1 - 6.1 13.38 9.2 - 6.0 14.64 6.2 - 6.38 - 25 - 20 10.20 7.5 - 5.9 9.96 7.6 - 5.8 10.77 5.1 - 6.17 - 20 - 15 7.621 6.1 - 5.7 7.479 6.2 - 5.6 7.995 4.2 - 5.97 - 15 - 10 5.748 4.9 - 5.5 5.664 4.9 - 5.4 5.991 3.3 - 5.78 - 10 - 5 4.373 3.8 - 5.4 4.325 3.8 - 5.3 4.529 2.6 - 5.60 - 5 0 3.355 2.9 - 5.2 3.328 2.9 - 5.1 3.453 2.0 - 5.43 0 5 2.595 2.1 - 5.0 2.581 2.1 - 5.0 2.655 1.4 - 5.26 5 10 2.023 1.4 - 4.9 2.016 1.4 - 4.9 2.057 1.0 - 5.10 10 15 1.588 0.9 - 4.7 1.585 0.9 - 4.7 1.606 .6 - 4.95 15 20 1.256 0.4 - 4.6 1.255 0.4 - 4.6 1.263 .3 - 4.80 20 25 1.0000 0.0 - 4.5 1.0000 0.0 - 4.5 1.0000 0.0 - 4.65 25 30 .8014 0.4 - 4.4 .8017 0.4 - 4.3 .7973 .3 - 4.52 30 35 .6463 0.8 - 4.2 .6466 0.8 - 4.2 .6398 .5 - 4.39 35 40 .5243 1.3 - 4.1 .5245 1.3 - 4.1 .5167 .9 - 4.26 40 45 .4278 1.8 - 4.0 .4278 1.8 - 4.0 .4198 1.2 - 4.14 45 50 .3510 2.3 - 3.9 .3508 2.3 - 3.9 .3430 1.6 - 4.02 50 55 .2896 2.9 - 3.8 .2891 2.9 - 3.8 .2819 2.0 - 3.91 55 60 .2401 3.5 - 3.7 .2394 3.5 - 3.7 .2329 2.4 - 3.80 60 65 .2001 4.1 - 3.6 .1992 4.2 - 3.6 .1934 2.8 - 3.69 65 70 .1675 4.8 - 3.5 .1666 4.8 - 3.5 .1615 3.3 - 3.59 70 75 .1409 5.5 - 3.4 .1399 5.5 - 3.4 .1354 3.7 - 3.50 75 80 .1190 6.2 - 3.3 .11794 6.2 - 3.4 .1141 4.2 - 3.40 80 85 .1010 6.9 - 3.2 .09987 6.9 - 3.3 .09660 4.7 - 3.31 85 90 .08605 7.6 - 3.2 .08491 7.6 - 3.2 .08212 5.2 - 3.23 90 95 .07360 8.3 - 3.1 .07246 8.4 - 3.1 .07011 5.7 - 3.14 95 100 .06319 9.1 - 3.0 .06207 9.1 - 3.1 .06010 6.2 - 3.06 100 105 .05446 9.8 - 2.9 .05336 9.9 -3.0 .05172 6.7 - 2.98 105 110 .04710 10.6 - 2.9 .04604 10.6 - 2.9 .04467 7.2 - 2.91 110 115 .04087 11.3 - 2.8 .03985 11.4 - 2.8 .03873 7.7 - 2.83 115 120 .03559 12.1 - 2.7 .03461 12.2 - 2.8 .03370 8.2 - 2.76 120 125 .03109 12.9 - 2.7 .03015 12.9 -2.7 .02942 8.8 - 2.70 125 130 .02724 13.7 - 2.6 .02635 13.7 - 2.7 .02576 9.3 - 2.63 130 135 .02394 14.4 - 2.5 .02309 14.5 - 2.6 .02264 9.8 - 2.57 135 140 .02111 15.2 - 2.5 .02030 15.3 - 2.5 .01995 10.3 - 2.51 140 145 .01866 16.0 - 2.4 .01789 16.1 - 2.5 .01764 10.9 - 2.45 145 150 .01654 16.8 - 2.4 .01581 16.8 - 2.4 .01564 11.4 - 2.39 150 tables of resistance vs temperature
32 tables of resistance vs temperature material code b (k) t rc 4340 s 4520 sc 4500 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 105.68 25.5 - 7.2 126.1 26.6 - 7.55 129.77 26.5 - 7.5 - 55 - 50 74.01 22.1 - 6.9 87.73 23.0 - 7.35 89.31 22.9 - 7.3 - 50 - 45 52.37 19.0 - 6.7 61.59 19.8 - 7.16 62.15 19.7 - 7.1 - 45 - 40 37.43 16.2 - 6.6 43.62 16.9 - 6.97 43.72 16.8 - 6.9 - 40 - 35 27.01 13.8 - 6.4 31.17 14.3 - 6.79 31.07 14.3 - 6.7 - 35 - 30 19.66 11.6 - 6.2 22.45 12.1 - 6.62 22.29 12.0 - 6.5 - 30 - 25 14.44 9.7 - 6.0 16.31 10.1 - 6.45 16.15 10.0 - 6.3 - 25 - 20 10.70 8.0 - 5.9 11.94 8.3 - 6.28 11.80 8.3 - 6.1 - 20 - 15 7.990 6.5 - 5.7 8.808 6.8 - 6.12 8.703 6.8 - 6.0 - 15 - 10 6.013 5.2 - 5.6 6.548 5.4 - 5.96 6.470 5.4 - 5.8 - 10 - 5 4.559 4.1 - 5.4 4.904 4.2 - 5.81 4.849 4.2 - 5.7 - 5 0 3.482 3.1 - 5.3 3.699 3.2 - 5.66 3.662 3.2 - 5.5 0 5 2.678 2.2 - 5.2 2.810 2.3 - 5.52 2.786 2.3 - 5.4 5 10 2.074 1.5 - 5.0 2.149 1.6 - 5.38 2.135 1.6 - 5.2 10 15 1.616 0.9 - 4.9 1.654 1.0 - 5.24 1.647 0.9 - 5.1 15 20 1.267 0.4 - 4.8 1.282 .4 - 5.10 1.279 0.4 - 5.0 20 25 1.0000 0.0 - 4.7 1.0000 0.0 - 4.97 1.0000 0.0 - 4.8 25 30 .7936 0.4 - 4.5 .7848 .4 - 4.85 .7865 0.4 - 4.7 30 35 .6334 0.8 - 4.4 .6196 .9 - 4.72 .6223 0.9 - 4.6 35 40 .5083 1.3 - 4.3 .4922 1.4 - 4.60 .4953 1.4 - 4.5 40 45 .4100 1.9 - 4.2 .3932 2.0 - 4.48 .3963 2.0 - 4.4 45 50 .3325 2.5 - 4.1 .3158 2.6 - 4.37 .3189 2.6 - 4.3 50 55 .2709 3.1 - 4.0 .2551 3.2 - 4.26 .2579 3.2 - 4.2 55 60 .2218 3.7 - 3.9 .2072 3.9 - 4.15 .2096 3.9 - 4.1 60 65 .1825 4.4 - 3.8 .1691 4.6 - 4.05 .1712 4.6 - 4.0 65 70 .1508 5.1 - 3.8 .1387 5.3 - 3.94 .1405 5.3 - 3.9 70 75 .1251 5.8 - 3.7 .1144 6.1 - 3.84 .1159 6.0 - 3.8 75 80 .1043 6.6 - 3.6 .09477 6.8 - 3.75 .09595 6.8 - 3.7 80 85 .08727 7.3 - 3.5 .07888 7.6 - 3.65 .07980 7.6 - 3.6 85 90 .07332 8.1 - 3.4 .06595 8.4 - 3.56 .06664 8.4 - 3.6 90 95 .06184 8.9 - 3.4 .05539 9.2 - 3.47 .05588 9.2 - 3.5 95 100 .05235 9.7 - 3.3 .04671 10.1 - 3.39 .04704 10.0 -3.4 100 105 .04448 10.5 - 3.2 .03956 10.9 - 3.30 .03975 10.8 - 3.3 105 110 .03793 11.3 - 3.1 .03364 11.7 - 3.22 .03371 11.7 - 3.3 110 115 .03245 12.1 - 3.1 .02872 12.6 - 3.14 .02869 12.5 - 3.2 115 120 .02785 12.9 - 3.0 .02461 13.4 - 3.07 .02450 13.4 - 3.1 120 125 .02399 13.7 - 3.0 .02117 14.3 - 2.99 .02100 14.2 - 3.0 125 130 .02072 14.5 - 2.9 .01828 15.1 - 2.92 .01805 15.1 - 3.0 130 135 .01796 15.4 - 2.8 .01584 16.0 - 2.85 .01557 15.9 - 2.9 135 140 .01561 16.2 - 2.8 .01376 16.8 - 2.78 .01347 16.8 - 2.9 140 145 .01360 17.0 - 2.7 .01201 17.7 - 2.72 .01169 17.6 - 2.8 145 150 .01189 17.8 - 2.7 .01050 18.6 - 2.65 .01017 18.5 - 2.7 150 material code b (k) t qa 4250 r 4400 ra 4380 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 1101.8 8.3 - 7.36 113.9 25.9 - 7.42 110.7 8.6 - 7.53 - 55 - 50 71.33 7.2 - 7.13 79.69 22.4 - 7.22 77.22 7.4 - 7.29 - 50 - 45 50.51 6.2 - 6.91 56.29 19.2 - 7.03 54.43 6.4 - 7.07 - 45 - 40 36.14 5.3 - 6.70 40.12 16.4 - 6.84 38.76 5.5 - 6.85 - 40 - 35 26.11 4.5 - 6.50 28.85 14.0 - 6.66 27.86 4.6 - 6.65 - 35 - 30 19.05 3.8 - 6.31 20.92 11.8 - 6.48 20.22 3.9 - 6.46 - 30 - 25 14.02 3.2 - 6.12 15.29 9.8 - 6.31 14.81 3.3 - 6.27 - 25 - 20 10.41 2.6 - 5.85 11.27 8.1 - 6.14 10.94 2.7 - 6.09 - 20 - 15 7.791 2.1 - 5.78 8.367 6.6 - 5.98 8.143 2.2 - 5.92 - 15 - 10 5.879 1.7 - 5.62 6.260 5.3 - 5.83 6.112 1.8 - 5.76 - 10 - 5 4.470 1.3 - 5.46 4.719 4.1 - 5.67 4.622 1.4 - 5.60 - 5 0 3.424 1.0 - 5.31 3.583 3.1 - 5.53 3.522 1.0 - 5.45 0 5 2.642 .7 - 5.17 2.739 2.3 - 5.38 2.702 .8 - 5.31 5 10 2.052 .5 - 5.03 2.108 1.5 - 5.24 2.087 .5 - 5.17 10 15 1.605 .3 - 4.90 1.634 .9 - 5.11 1.623 .3 - 5.03 15 20 1.263 .1 - 4.77 1.274 .4 - 4.97 1.270 .1 - 4.91 20 25 1.0000 0.0 - 4.65 1.0000 0.0 - 4.84 1.0000 0.0 - 4.78 25 30 .7965 .1 - 4.53 .7897 .4 - 4.72 .7920 .1 - 4.66 30 35 .6380 .3 - 4.42 .6273 .9 - 4.60 .6308 .3 - 4.55 35 40 .5139 .4 - 4.31 .5012 1.4 - 4.48 .5052 .5 - 4.43 40 45 .4162 .6 - 4.20 .4026 1.9 - 4.36 .4068 .6 - 4.33 45 50 .3388 .8 - 4.10 .3255 2.5 - 4.25 .3292 .8 - 4.22 50 55 .2771 1.0 - 4.00 .2644 3.1 - 4.14 .2678 1.0 - 4.12 55 60 .2278 1.2 - 3.90 .2159 3.8 - 4.04 .2189 1.3 - 4.02 60 65 .1881 1.4 - 3.81 .1772 4.5 - 3.03 .1797 1.5 - 3.93 65 70 .1560 1.7 - 3.72 .1462 5.2 - 3.83 .1483 1.7 - 3.84 70 75 .1300 1.9 - 3.63 .1212 5.9 - 3.74 .1228 2.0 - 3.75 75 80 .1088 2.1 - 3.55 .1009 6.7 - 3.64 .1022 2.2 - 3.67 80 85 .0914 2.4 - 3.47 .08441 7.4 - 3.55 .08537 2.5 - 3.58 85 90 .07708 2.6 - 3.39 .07093 8.2 - 3.46 .07160 2.7 - 3.50 90 95 .06527 2.9 - 3.31 .05985 9.0 - 3.38 .06029 3.0 - 3.42 95 100 .05547 3.2 - 3.24 .05072 9.8 - 3.29 .05095 3.2 - 3.35 100 105 .04731 3.4 - 3.17 .04315 10.6 - 3.21 .04322 3.5 - 3.28 105 110 .04049 3.7 - 3.10 .03686 11.4 - 3.13 .03679 3.8 - 3.21 110 115 .03160 12.2 - 3.06 .03478 3.9 - 3.03 .03143 4.1 - 3.14 115 120 .02996 4.2 - 2.96 .02720 13.1 - 2.98 .02693 4.3 - 3.07 120 125 .02590 4.5 - 2.90 .02349 13.9 - 2.91 .02316 4.6 - 3.01 125 130 .02246 4.7 - 2.84 .02036 14.7 - 2.84 .01997 4.9 - 2.94 130 135 .01953 5.0 - 2.78 .01771 15.6 - 2.77 .01728 5.2 - 2.88 135 140 .01704 5.3 - 2.72 .01545 16.4 - 2.71 .01499 5.4 - 2.82 140 145 .01490 5.5 - 2.67 .01353 17.2 - 2.64 .01305 5.7 - 2.77 145 150 .01307 5.8 - 2.61 .01188 18.1 - 2.58 .01138 6.0 - 2.71 150
33 tables of resistance vs temperature material code b (k) t t 4630 u 4840 t (c) r (t) / r25 tf (%) (%/c) r (t) / r25 tf (%) (%/c) (c) - 55 137.0 27.2 - 7.64 173.7 28.5 - 8.04 - 55 - 50 94.92 23.5 - 7.45 118.2 24.6 - 7.83 - 50 - 45 66.34 20.2 - 7.26 81.16 21.2 - 7.63 - 45 - 40 46.77 17.3 - 7.09 56.25 18.1 - 7.44 - 40 - 35 33.25 14.7 - 6.90 39.33 15.4 - 7.25 - 35 - 30 23.83 12.4 - 6.72 27.74 12.9 - 7.07 - 30 - 25 17.22 10.3 - 6.56 19.73 10.8 - 6.89 - 25 - 20 12.54 8.5 - 6.39 14.15 8.9 - 6.71 - 20 - 15 9.205 6.9 - 6.23 10.23 7.3 - 6.54 - 15 - 10 6.806 5.6 - 6.08 7.456 5.8 - 6.38 - 10 - 5 5.069 4.3 - 5.92 5.475 4.5 - 6.22 - 5 0 3.803 3.3 - 5.78 4.051 3.4 - 6.06 0 5 2.873 2.4 - 5.63 3.019 2.5 - 5.91 5 10 2.185 1.6 - 5.49 2.267 1.7 - 5.76 10 15 1.673 1.0 - 5.35 1.714 1.0 - 5.61 15 20 1.289 .4 - 5.22 1.305 .5 - 5.47 20 25 1.0000 0.0 - 5.09 1.0000 0.0 - 5.33 25 30 .7805 .4 - 4.96 .7715 .4 - 5.20 30 35 .6129 .9 - 4.83 .5991 .9 - 5.06 35 40 .4842 1.4 - 4.71 .4681 1.5 - 4.94 40 45 .3847 2.0 - 4.59 .3681 2.1 - 4.81 45 50 .3074 2.6 - 4.48 .2911 2.8 - 4.69 50 55 .2470 3.3 - 4.37 .2316 3.4 - 4.57 55 60 .1996 4.0 - 4.26 .1853 4.2 - 4.45 60 65 .1621 4.7 - 4.15 .1491 4.9 - 4.34 65 70 .1323 5.4 - 4.04 .1207 5.7 - 4.23 70 75 .1086 6.2 - 3.94 .09813 6.5 - 4.12 75 80 .08953 7.0 - 3.84 .08023 7.3 - 4.02 80 85 .07417 7.8 - 3.75 .06592 8.2 - 3.91 85 90 .06173 8.6 - 3.65 .05443 9.0 - 3.82 90 95 .05161 9.5 - 3.56 .04515 9.9 - 3.72 95 100 .04334 10.3 - 3.47 .03763 10.8 - 3.63 100 105 .03655 11.2 - 3.39 .03151 11.7 - 3.54 105 110 .03095 12.0 - 3.31 .02650 12.6 - 3.45 110 115 .02632 12.9 - 3.22 .02237 13.5 - 3.38 115 120 .02247 13.7 - 3.15 .01897 14.4 - 3.28 120 125 .01925 14.6 - 3.07 .01615 15.3 - 3.20 125 130 .01656 15.5 - 2.99 .01381 16.2 - 3.12 130 135 .01429 16.4 - 2.92 .01185 17.1 - 3.04 135 140 .01238 17.3 - 2.85 .01020 18.0 - 2.97 140 145 .01076 18.1 - 2.78 .00882 19.0 - 2.90 145 150 .00938 19.0 - 2.72 .00765 19.9 - 2.83 150
34 on the packaging of all shipped thermistors, you will find a bar code label. this label gives systematic information on the type of product, part number, lot number, manufacturing date and quantity. an example is given below: this information allows complete traceability of the entire manufacturing process, from raw materials to final inspection. this is extremely useful for any information request, customer complaint or product return. lot number rohs logo manufacturing date (yymmdd) quantity of parts per packaging product and part number reference identification C traceability
35 circuit protection portfolio application guide applications esd xxxx in rush current limit xx long wave transient xx x xxx x emi filtering xxx emi filtering + transient xxxxxxxxxxx load dump xx automotive x xxxxxxx x xx mil std 461-e x iso 7637 xx iec 61000 x xxx x xxx x x telecom protection xx over current protection x diode replacement x xx xxx x zener replacement x xx xxx x military a-a-55682 x radiation resistance xx industrial x xxxxx xx x x x ul 1449 x ul 1414 x medical (en 60601) xx high speed data line protection xx optic transceiver protection xx temperature sensing xx low leakage circuit x data data sheet xxxxxxxxxxxxxxxxxx application notes xxx x xx xxx x xxx reliability data xx distributed element model x xxx x xxx x x frequency response xxxxxxxxxx x fast blow smt fuse (surface mount fuse) avx products smt broadband lct filter (feedthru) smt broadband lct filter array (feedthru array) smt high current broadband lct filter (high current feedthru) smt bidirectional transient voltage suppressors & emi filters (transguard) smt bidirectional transient voltage suppressors & emi filters arrays (multiguard) low capacitance smt bidirectional transient voltage suppressors & emi filters (staticguard) smt bidirectional lct transient voltage suppressor filters (transfeed) low capacitance bidirectional transient voltage suppressors (antennaguard) bidirectional transient voltage suppressors for low, medium & high speed can networks (can bus series) bidirectional transient voltage suppressors for usb applications (usb series) bidirectional transient voltage suppressors for low leakage cmos applications (ultraguard) bidirectional transient voltage suppressors for high energy transients (medium power mlv) bidirectional transient voltage suppressors for load dump & jump start auto applications (medium power automotive series) bidirectional transient voltage suppressors for telecom applications (medium power mlv for telecom) leaded negative temperature coefficient thermistors smt negative temperature coefficient thermistors general purpose radial leaded power mov (metal oxide varistors)
36 fast blow smt fuse (surface mount fuse) high accuracy, fast blow, surface mount fuses. case sizes: 0402, 0603, 0805, 1206, 0612. current ratings 250 ma to 5 amps. smt broadband lct filter (feedthru) miniature surface mount broadband lc t configuration emi filters. feedthru current ratings to 300 ma. smt broadband lct filter array (feedthru array) miniature surface mount broadband 4 element lc t configuration emi filter arrays. feedthru current ratings of 300 ma. smt high current broadband lct filter (high current feedthru) high current, surface mount, broadband lc t configuration filters. feedthru currents up to 5 amps. smt bidirectional transient voltage suppressors & emi filters (transguard) miniature surface mount, bidirectional transient voltage suppressor. steady state operating voltages of 3.3 volts to 60 volts. case sizes: 0402, 0603, 0805, 1206, 1210, 1812, 2220. smt bidirectional transient voltage suppressors & emi filter arrays (multiguard) miniature surface mount bidirectional transient voltage suppressor 2 or 4 element arrays. steady state operating voltages of 5.6 volts to 18 volts. case sizes: 0405, 0508, 0612. low capacitance smt bidirectional transient voltage suppressors & emi filters (staticguard) bidirectional transient voltage suppressor intended for low leakage cmos based ic protection. can be operated at voltages up to 18v. case sizes: 0402, 0405, 0508, 0603, 0612, 0805, 1206. smt bidirectional lct transient voltage suppressor filters (transfeed) miniature bidirectional transient voltage suppressor filter lc t configuration. relatively narrow band, high attenuation filter. discrete filter in 0508 package, 4 element array filter in 0612 package. low capacitance bidirectional transient voltage suppressors (antennaguard) low capacitance, bidirectional transient voltage suppressor intended for high speed or high frequency applications. available in 0402 and 0603 case sizes. capacitance values of 3 pf and 12 pf available. bidirectional transient voltage suppressors for low, medium & high speed can networks (can bus series) bidirectional transient voltage suppressor intended for high speed and slow speed can circuitry. available configurations: 0603 discrete, 0405 two element array, 0612 four element array. bidirectional transient voltage suppressors for usb applications (usb series) bidirectional transient voltage suppressor intended for universal serial bus applications. available configurations: 0402 and 0603 discrete; 0405 two element array; 0508 three element array; 0612 four element array. bidirectional transient voltage suppressors for low leakage cmos applications (ultraguard) low leakage, bidirectional transient voltage suppressor intended for cmos battery powered designs. steady state operating voltages of 3, 5, 7, 10 and 15 volts (dc). available configurations: 0402, 0603 and 0805 discrete; 0405 two element array; 0508 and 0612 four element array. bidirectional transient voltage suppressors for high energy transients (medium power mlv) medium power, bidirectional transient voltage suppressor. available in operating voltages of: 18, 26, 30, 48, 60 volts (dc). case sizes: 1206, 1210, 1812, 2220. energy ratings 0.9 to 1.5 joules. bidirectional transient voltage suppressors for load dump & jump start auto applications (medium power automotive series) medium power, bidirectional transient voltage suppressor. available in operating voltages of: 16 and 34 volts (dc). case sizes: 1206, 1210, 1812, 2220. energy ratings 0.6 to 12 joules. load dump and jump start rated. bidirectional transient voltage suppressors for telecom applications (medium power mlv for telecom) medium power, bidirectional transient voltage suppressor. available in operating voltages of: 60 and 90 vrms in 1812 case size. energy ratings of 5 and 6 joules. ccitt 10x700s 2kv capable. leaded negative temperature coefficient thermistors negative temperature coefficient thermistors high accuracy ntcs from 2k ohm to 100k ohm, general purpose ntcs from 10 ohms to 1 meg ohm. stud mounted ntcs from 10 ohms to 330 k ohms. smt negative temperature coefficient thermistors surface mount negative temperature coefficient thermistor in 0402, 0603, 0805 and 1206 case sizes. general purpose radial leaded power mov (metal oxide varistors) radial metal oxide varistors 11 vrms to 625 vrms. energy ratings to >500 j. peak current ratings to 10,000 a. circuit protection portfolio terminology guide
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