high precision mini-melf resistor www.vishay.com for technical questions, contact: melf@vishay.com document number: 28715 50 revision: 20-feb-12 uma 0204 vishay beyschlag this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 uma 0204 high precision thin film mini-melf resistors combine the proven reliability of professional melf products with a most advanced level of precision and stability first achieved with axial thin film high precision resistors. this unique combination makes the product perfectly suited for all applications with outstanding requirements towards reliable precision and stability. features ? approved to en 140401-803 ? most advanced thin film technology ? superior overall stability ? tcr down to 5 ppm/k ? high precision tolerance down to 0.02 % ? matte sn termination on ni barrier layer ? compliant to rohs directive 2011/65/eu applications ? measuring and calibration equipment ? industrial process control systems ? space and aircraft electronics notes ? these resistors do not feature a limited lifetime when operated within the permissible limits. however, resistance value drift increasing over operating time may result in exceeding a limi t acceptable to the specific application, thereby est ablishing a functional lifeti me. (1) the power dissipation on the resistor gener ates a temperature rise against the lo cal ambient, depending on the heatflow support of the printed-circuit board (thermal resistance). the rated dissipation applies only if the pe rmitted film temperature is not exceede d. metric size din 0204 cecc rc 3715m technical specifications description uma 0204 metric cecc size rc 3715m resistance range 22 ? to 332 k ? resistance tolerance 0.25 %; 0.1 %; 0.05 %; 0.02 % temperature coefficient 15 ppm/k; 10 ppm/k; 5 ppm/k operation mode precision standard rated dissipation, p 70 (1) 0.07 w 0.25 w operating voltage, u max. ac/dc 200 v permissible film temperature, ? f max. 85 c 125 c operating temperature range - 10 c to 85 c - 55 c to 125 c max. resistance change at p 70 for resistance range, ? r / r max., after: 22 ? to 332 k ? 1000 h ? 0.02 % ? 0.05 % 8000 h ? 0.05 % ? 0.1 % 225 000 h ? 0.15 % ? 0.3 % permissible voltage against ambient (insulation): 1 min; u ins 300 v continuous 75 v failure rate: fit observed ? 0.1 x 10 -9 /h
document number: 28715 for technical questions, contact: melf@vishay.com www.vishay.com revision: 20-feb-12 51 uma 0204 high precision mi ni-melf resistor vishay beyschlag this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dimensions note ? color code marking is applied according to iec 60062 (3) in five bands. each color band appears as a single solid line, voids are permissible if at least 2 / 3 of the band is visible from each radial angle of view. the last color band fo r tolerance is approximately 50 % wider than the other bands. an interrupted band between the 4 th and 5 th full band indicates the temper ature coefficient (orange = tc15, blue = tc10, violett = tc05). pattern styles for melf resistors note ? the given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards iec 611 88-5-x, or in publication ipc-7351. they do not guarantee any supposed thermal properties, however, they wi ll be found adequate for most gene ral applications. dimensions and mass type l (mm) d (mm) l 1 min. (mm) d 1 (mm) k (mm) mass (mg) uma 0204 3.6 + 0/- 0.2 1.4 + 0/- 0.1 1.8 d + 0/- 0.15 0.8 0.1 22 recommended solder pad dimensions type wave soldering reflow soldering g (mm) y (mm) x (mm) z (mm) g (mm) y (mm) x (mm) z (mm) uma 0204 1.5 1.5 1.8 4.5 1.7 1.2 1.6 4.1 l 1 k d 1 d l g x y z
www.vishay.com for technical questions, contact: melf@vishay.com document number: 28715 52 revision: 20-feb-12 uma 0204 vishay beyschlag high precision mini-melf resistor this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes ? products can be ordered using either the part number or the product description. ? the standard version includes approval to en 140401-803, ?version a?, for selected ranges. notes ? resistance values to be selected from e192 seri es, for other values please contact the factory. ? tcr 10 and tcr 05 is specified over the te mperature range from - 10 c to + 85 c. ? approval to en 140401-803, ?v ersion a? is achieved for tcr 10 with 0.25 % and 0.1 % part number and product description part number: uma02040g4641aa300 uma02040g4641aa300 type/size version tcr resistance tolerance pac k ag i n g uma0204 0 = standard g = 5 ppm/k f = 10 ppm/k e = 15 ppm/k 3 digit value 1 digit multiplier multiplier 9 = *10 -1 0 = *10 0 1 = *10 1 2 = *10 2 3 = *10 3 h = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % au a1 a3 a0 product description: uma 0204 - 05 0.05 % al 4k64 uma 0204 - 05 0.05 % al 4k64 type size tcr tolerance packaging resistance uma 0204 05 ppm/k 10 ppm/k 15 ppm/k 0.02 % 0.05 % 0.1 % 0.25 % au a1 al a0 4k64 = 4.64 k ? packaging type code quantity carrier tape width pitch reel diameter uma 0204 au 100 antistatic blister tape acc. iec 60286-3 type ii 8 mm 4 mm box a1 1000 180 mm/7" a3 = al 3000 a0 10 000 330 mm/13" temperature coefficient and resistance range description resistance tcr tolerance uma 0204 15 ppm/k 0.05 % 47 ? to 332 k ? 10 ppm/k 0.25 % 22 ? to 332 k ? 0.1 % 43 ? to 332 k ? 0.05 % 75 ? to 221 k ? 05 ppm/k 0.25 % 33 ? to 221 k ? 0.1 % 56 ? to 221 k ? 0.05 % 75 ? to 150 k ? 0.02 % 75 ? to 100 k ?
document number: 28715 for technical questions, contact: melf@vishay.com www.vishay.com revision: 20-feb-12 53 uma 0204 high precision mi ni-melf resistor vishay beyschlag this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 description production is strictly controlled and follows an extensive set of instructions established for reproducibility. a homogeneous film of metal al loy is deposited on a high grade ceramic body (al 2 o 3 ) and conditioned to achieve the desired temperature stability. nickel plated steel terminations are firmly pressed on the metallised rods. a special laser is used to achieve the target value by smoothly cutting in the resistive layer without damaging the ceramics. a further conditioning is applied in order to stabilise the trimming result. the resistor elements are covered by a protective coating designed for electrical, mechanical and climatic protection. the terminations re ceive a final pure tin on nickel plating. five colour rings de signate the resistance value and tolerance in accordance with iec 60062 (3) . additional colour dots near the fourth ring are us ed to identify the temperature coefficient. the result of the determined production is verified by an extensive testing proce dure under strict temperature control, performed on 100 % of the individual resistors. this includes pulse load screening (for r ? 10 ? ) and additional non-linearity screening (for r ? 30 ? ) for the elimination of products with a potential risk of early life failures according to en 140401-803, 2.1.2.2. only accepted products are laid directly into the antistatic blister tape in accordance with iec 60286-3, type ii (3) . assembly the resistors are suitable for processing on automatic smd assembly systems. they are su itable for automa tic soldering using wave, reflow or vapour phase as shown in iec 61760-1 (3) . solderability is specified for 2 years after production or requalification, however, excellent solderability is proven after extended storage in excess of 10 years. the permitted storage time is 20 years. the resistors are completely l ead (pb)-free, the pure tin plating provides compatibility with lead (pb)-free soldering processes. the immunity of the plating against tin whisker growth has been proven under extensive testing. the encapsulation is resistant to all cleaning solvents commonly used in the electronics industry, including alcohols, esters and aqueous solutions. the suitability of conformal coatings, if applied, shall be qualified by appropriate means to ensure the long-term stability of the whole system. all products comply with the gadsl (1) and the cefic- eeca-eicta (2) list of legal restrictions on hazardous substances. this includes full compliance with the following directives: ? 2000/53/ec end of vehicle life directive (elv) and annex ii (elv ii) ? 2011/65/eu restriction of the use of hazardous substances directive (rohs) ? 2002/96/ec waste electrical and electronic equipment directive (weee) approvals where applicable the resistors are approved within the iecq-cecc quality assessme nt system for electronic components to the detail specification en 140401-803 which refers to en 60115-1 , en 140400 and the variety of environmental test procedures of the iec 60068 (3) series. conformity is attested by the use of the cecc logo ( ) as the mark of conformity on the package label. vishay beyschlag has achieved ?approval of manufacturer? in accordance with iec qc 001002-3, clause 2 . the release certificate for ?technology approval schedule? in accordance with cecc 240001 based on iec qc 001002-3, clause 6 is granted for the vishay beyschlag manufacturing process. related products for thin film products with a wider range or tcr, tolerance and resistance, see this datasheets: ? ?professional melf resistors? ( www.vishay.com/doc?28713 ) ? ?precision melf resistors? ( www.vishay.com/doc?28714 ) notes (1) global automotive declarable substance list, see www.gadsl.org . (2) cefic (european chemical industry council) , eeca (european electronic component manufac turers association) , eicta (european tra de organisation representing the information and communi cations technology and cons umer electronics), see www.eicta.org/index.php?id=995 ? issues ? environment policy ? chemicals ? chemicals for electronics. (3) the quoted iec standards are also rel eased as en standards with the same number and identical contents.
www.vishay.com for technical questions, contact: melf@vishay.com document number: 28715 54 revision: 20-feb-12 uma 0204 vishay beyschlag high precision mini-melf resistor this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 functional performance uma 0204 0.10 w power dissipation p c 100 150 - 50 50 70 deratin g - precision operation 0 0 ambient temperature ? amb 0.02 0.04 0.06 0.0 8 uma 0204 0.3 w power dissipation p c 100 150 - 50 50 70 deratin g - standard operation 0 0.2 0.1 0 ambient temperature ? amb current noise a 1 0.01 0.1 1 v / v resistance value r current noise - a 1 in accordance w ith iec 60195 100 1 k 10 k 100 k 1 m 10 m uma 0204
document number: 28715 for technical questions, contact: melf@vishay.com www.vishay.com revision: 20-feb-12 55 uma 0204 high precision mi ni-melf resistor vishay beyschlag this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 tests and requirements all tests are carried out in accordance with the following specifications: en 60115-1, generic specification en 140400, sectional specification en 140401-803, detail specification the components are approved in accordance with the iecq-cecc-system, where appl icable. for the full test schedule refer to the document s listed above. the testing also covers most of th e requirements specified by eia/is-703 and jis-c-5202. the tests are carried out under standard atmospheric conditions in accordance with iec 60068-1, 5.3 (3) . climatic category lct/uct/56 (rat ed temperature range: lower category temperature, upper category temperature; damp heat, steady state, duration: 56 days) is valid. unless otherwise specified the following values apply: temperature: 15 c to 35 c relative humidity: 45 % to 75 % air pressure: 86 kpa to 106 kpa (860 mbar to 1060 mbar). the components are mounted for testing on printed-circuit boards in accordance with en 140400, 2.3.3, unless otherwise specified. the requirements stated belo w are based on the required tests and permitted limits of en 140401-803. however, some additional tests and a number of improvements against those minimum requirements have been included. the stated requirements for long-term tests are typically fulfilled with a statistical safety of at least + 5 s. x test procedures and requirements en 60115-1 clause iec 60068-2 (3) test method test procedure requirements permissible change ( ? r ) stability class 0.05 or better stability class 0.1 or better stability class 0.25 or better stability for product types: uma 0204 100 ? to 100 k ? 43 ? to 221 k ? 22 ? to 332 k ? 4.5 - resistance - 0.25 % r ; 0.1 % r ; 0.05 % r ; 0.02 % r 4.8.4.2 - temperature coefficient at (20/- 10/20) ? c and (20/85/20) ? c 10 ppm/k; 05 ppm/k at ? (20/- 55/20) ? c and (20/125/20) ? c 15 ppm/k 4.25.1 - endurance at 70 ? c: precision operation mode u = ??? u max. ; 1.5 h on; 0.5 h off; 70 ? c; 1000 h (0.02 % r +1 m ? ) 70 ? c; 8000 h (0.05 % r +1 m ? ) endurance at 70 ? c: standard operating mode u = ??? u max. ; 1.5 h on; 0.5 h off; 70 ? c; 1000 h (0.05 % r +1 m ? ) 70 ? c; 8000 h (0.1 % r +1 m ? ) 4.25.3 - endurance at upper category temperature 85 ? c; 1000 h (0.01 % r +1 m ? ) (0.05 % r +1 m ? ) (0.1 % r +1 m ? ) 125 ? c; 1000 h (0.05 % r +1 m ? ) (0.1 % r +1 m ? ) (0.15 % r +1 m ? ) 4.24 78 (cab) damp heat, steady state (40 2) ? c; 56 days; (93 3) % rh (0.03 % r +1 m ? ) (0.05 % r +1 m ? ) (0.1 % r +1 m ? ) 4.39 67 (cy) damp heat, steady state, accelerated (85 ? 2) ? c; (85 5) % rh; u = 0.3 x ? ? 100 v; 1000 h (0.1 % r +1 m ? ) (0.25 % r +1 m ? ) p 70 x r p 70 x r p 70 x r
www.vishay.com for technical questions, contact: melf@vishay.com document number: 28715 56 revision: 20-feb-12 uma 0204 vishay beyschlag high precision mini-melf resistor this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 4.23 climatic sequence: 4.23.2 2 (bb) dry heat uct; 16 h 4.23.3 30 (db) damp heat, cyclic 55 ? c; 24 h; ?? 90 % rh; 1 cycle 4.23.4 1 (ab) cold lct ? c; 2 h 4.23.5 13 (m) low air pressure 8.5 kpa; 2 h; (25 10) ? c 4.23.6 30 (db) damp heat, cyclic 55 ? c; 24 h; ?? 90 % rh; 5 cycles 4.23.7 - dc load u = ??? u max. ; 1 min. lct = - 10 ? c; uct = 85 ? c ? (0.03 % r +1 m ? ) (0.05 % r +1 m ? ) - lct = - 55 ? c; uct = 125 ? c- - (0.1 % r +1 m ? ) - 1 (ab) cold - 55 ? c; 2 h (0.02 % r +1 m ? ) 4.19 14 (na) rapid change of temperature 30 min at lct; 30 min at uct; lct = - 10 ? c; uct = 85 ? c 5cycles (0.01 % r +1m ? ) (0.02 % r +1m ? ) - 1000 cycles (0.05 % r +1m ? ) (0.05 % r +1m ? ) - lct = - 55 ? c; uct = 125 ? c 5cycles - - (0.025 % r +1m ? ) 1000 cycles - - (0.1 % r +1m ? ) 4.13 - short time overload; precision operation mode u = 2.5 x ?? ?? 2 x u max. ; 5 s (0.005 % r +1 m ? ) (0.01 % r +1 m ? ) short time overload; standard operation mode u = 2.5 x ? ?? 2 x u max. ; 5 s (0.01 % r +1 m ? ) 4.27 - single pulse high voltage overload; standard mode severity no. 4: u = 10 x ? ? ?? 2x u max. ; 10 pulses 10 ? s/700 ? s (0.25 % r +5 m ? ) (1) 4.37 - periodic electric overload; standard mode u = ?? 2 x u max. ; 0.1 s on; 2.5 s off; 1000 cycles (0.5 % r +5 m ? ) (1) 4.22 6 (fc) vibration endurance by sweeping; 10 hz to 2000 hz; no resonance; amplitude ? 1.5 mm or ? 200 m/s 2 ; 7.5 h (0.01 % r +1 m ? ) 4.40 - electrostatic discharge (human body model) iec 61340-3-1 (3) ; 3 pos. + 3 neg. discharges uma 0204: 2 kv (0.5 % r + 50 m ? ) (1) test procedures and requirements en 60115-1 clause iec 60068-2 (3) test method test procedure requirements permissible change ( ? r ) stability class 0.05 or better stability class 0.1 or better stability class 0.25 or better stability for product types: uma 0204 100 ? to 100 k ? 43 ? to 221 k ? 22 ? to 332 k ? p 70 x r p 70 x r p 70 x r p 70 x r 15 x p 70 x r
document number: 28715 for technical questions, contact: melf@vishay.com www.vishay.com revision: 20-feb-12 57 uma 0204 high precision mi ni-melf resistor vishay beyschlag this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes (1) the pulse load stability of professional melf resistors applies also to high precision resistors. however, severe pulse loads a re likely to jeopardize high precision stability requirements. (2) wave soldering is not recommended. (3) the quoted iec standards are also released as en st andards with the same number and identical contents. 4.17.2 58 (td) solderability solder bath method; snpb40; non-activated flux; (215 ? 3) ? c; (3 0.3) s good tinning ( ? 95 % covered); no visible damage solder bath method; snag3cu0.5 or snag3.5; non-activated flux; (235 3) ? c; (2 0.2) s good tinning ( ? 95 % covered); no visible damage 4.18.2 58 (td) resistance to soldering heat solder bath method; (260 5) ? c; (10 1) s note (2) (0.05 % r +10m ? ) reflow method 2 (ir/forced gas convention) (260 5) ? c; (10 1) s (0.01 % r +1m ? ) (0.02 % r +1m ? ) 4.29 45 (xa) component solvent resistance isopropyl alcohol; 50 ? c; method 2 no visible damage 4.30 45 (xa) solvent resistance of marking isopropyl alcohol; 50 ? c; method 1, toothbrush marking legible; no visible damage 4.32 21 (ue 3 ) shear (adhesion) 45 n no visible damage 4.33 21 (ue 1 ) substrate bending depth 2 mm, 3 times no visible damage, no open circuit in bent position (0.02 % r + 10 m ? ) (0.05 % r +10m ? ) 4.7 - voltage proof u rms = u ins ; 60 s no flashover or breakdown 4.35 - flammability iec 60 695-11-5 (3) , needle flame test; 10 s no burning after 30 s test procedures and requirements en 60115-1 clause iec 60068-2 (3) test method test procedure requirements permissible change ( ? r ) stability class 0.05 or better stability class 0.1 or better stability class 0.25 or better stability for product types: uma 0204 100 ? to 100 k ? 43 ? to 221 k ? 22 ? to 332 k ?
www.vishay.com for technical questions, contact: melf@vishay.com document number: 28715 58 revision: 20-feb-12 uma 0204 vishay beyschlag high precision mini-melf resistor this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 historical 12nc information ? the resistors had a 12-digi t numeric code starting with 2312. ? the subsequent 4 digits indicated the resistor type, specification and packaging; see the 12nc table. ? the remaining 4 digits indicated the resistance value: - the first 3 digits indica ted the resistance value. - the last digit indicated the resistance decade in accordance with the 12nc in dicating resistance decade table. last digit of 12nc indicating resistance decade historical 12nc example the 12nc of an uma 0204 resistor, value 4.75 k ? and tcr 05 with 0.05 % tolerance, supplied in antistatic blister tape of 3000 units per reel was: 2312 113 44752. resistance decade last digit 10 to 99.9 ? 9 100 to 999 ? 1 1to9.99k ? 2 10 to 99.9 k ? 3 100 to 999 k ? 4 historical 12nc - resistor type and packaging description 2312 ... ..... antistatic blister tape antistatic blister tape on reel type tcr tol. au 100 units a1 1000 units al 3000 units a0 10 000 units uma 0204 15 ppm/k 0.05 % 101 4.... 106 4.... 111 4.... 116 4.... note (1) 101 91... 106 91... 111 91... 116 91... 10 ppm/k 0.25 % 102 2.... 107 2.... 112 2.... 117 2.... 0.1 % 102 3.... 107 3.... 112 3.... 117 3.... 0.05 % 102 4.... 107 4.... 112 4.... 117 4.... note (1) 102 91... 107 91... 112 91... 117 91... 5 ppm/k 0.25 % 103 2.... 108 2.... 113 2.... 118 2.... 0.1 % 103 3.... 108 3.... 113 3.... 118 3.... 0.05 % 103 4.... 108 4.... 113 4.... 118 4.... 0.02 % 103 6.... 108 6.... 113 6.... 118 6.... note (1) 103 91... 108 91... 113 91... 118 91...
legal disclaimer notice www.vishay.com vishay revision: 02-oct-12 1 document number: 91000 disclaimer all product, product specifications and data are subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employee s, and all persons acting on it s or their behalf (collectivel y, vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, repres entation or guarantee regarding the suitabilit y of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicable law, vi shay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation specia l, consequential or incidental damages, and (iii) any and all i mplied warranties, including warra nties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of products for certain type s of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in generic applications. such statements are not binding statements about the suitability of products for a particular application. it is the customers responsib ility to validate that a particu lar product with the properties descri bed in the product specification is suitable fo r use in a particular application. parameters provided in datasheets and/or specification s may vary in different applications an d performance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vish ays terms and condit ions of purchase, including but not limited to the warranty expressed therein. except as expressly indicate d in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vi shay product could result in personal injury or death. customers using or selling vishay products not expressly indicated for use in such applications do so at their own risk. pleas e contact authorized vishay personnel to ob tain written terms and conditions regarding products designed for such applications. no license, express or implied, by estoppel or otherwise, to any intellectual prope rty rights is granted by this document or by any conduct of vishay. product names and markings noted herein may be trad emarks of their respective owners. material category policy vishay intertechnology, inc. hereby certi fies that all its products that are id entified as rohs-compliant fulfill the definitions and restrictions defined under directive 2011/65/eu of the euro pean parliament and of the council of june 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (eee) - recast, unless otherwis e specified as non-compliant. please note that some vishay documentation may still make reference to rohs directive 2002/95/ ec. we confirm that all the products identified as being compliant to directive 2002 /95/ec conform to directive 2011/65/eu. vishay intertechnology, inc. hereby certifi es that all its products that are identified as ha logen-free follow halogen-free requirements as per jedec js709a stan dards. please note that some vishay documentation may still make reference to the iec 61249-2-21 definition. we co nfirm that all the products identified as being compliant to iec 61249-2-21 conform to jedec js709a standards.
|
