motorola semiconductor technical data motorola tvs/zener device data 5-1 600 watt peak power data sheet general data applicable to all series in this group zener transient voltage suppressors the smb series is designed to protect voltage sensitive components from high voltage, high energy transients. they have excellent clamping capability, high surge capability, low zener impedance and fast response time. the smb series is supplied in motorola's exclusive, cost-effective, highly reliable surmetic package and is ideally suited for use in communication systems, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. specification features: ? standard zener breakdown voltage range e 6.8 to 200 v ? stand-off voltage range e 5 to 170 v ? peak power e 600 watts @ 1 ms ? maximum clamp voltage @ peak pulse current ? low leakage < 5 m a above 10 v ? ul recognition ? response time typically < 1 ns mechanical characteristics: case: void-free, transfer-molded, thermosetting plastic finish: all external surfaces are corrosion resistant and leads are readily solderable polarity: cathode indicated by molded polarity notch. when operated in zener mode, will be positive with respect to anode mounting position: any leads: modified l-bend providing more contact area to bond pad maximum case temperature for soldering purposes: 260 c for 10 seconds wafer fab location: phoenix, arizona assembly/test location: seremban, malaysia maximum ratings rating symbol value unit peak power dissipation (1) @ t l 25 c p pk 600 watts forward surge current (2) @ t a = 25 c i fsm 100 amps thermal resistance from junction to lead (typical) r jl 25 c/w operating and storage temperature range t j , t stg 65 to +150 c notes: 1. nonrepetitive current pulse per figure 2 and derated above t a = 25 c per figure 3. notes: 2. 1/2 sine wave (or equivalent square wave), pw = 8.3 ms, duty cycle = 4 pulses per minute maximum. 1smb10cat3 series 600 watt peak power plastic surface mount zener overvoltage transient suppressors 6.8200 volts 600 watt peak power case 403a plastic rev 1
abbreviations and symbols v r stand off voltage. applied reverse voltage to assure a non-conductive condition (see note 1). v (br)min this is the minimum breakdown voltage the device will exhibit and is used to assure that conduction does not occur prior to this voltage level at 25 c. v c maximum clamping voltage. the maximum peak volt- age appearing across the transient suppressor when subjected to the peak pusle current in a one millisecond time interval. the peak pulse voltages are the combina- tion of voltage rise due to both the series resistance and thermal rise. i pp peak pulse current e see figure 2 p p peak pulse power i r reverse leakage general data e 600 watt peak power motorola tvs/zener device data 5-2 600 watt peak power data sheet electrical characteristics (t a = 25 c unless otherwise noted). reverse breakdown voltage* maximum peak pulse current maximum re erse leakage reverse stand-off volta g e v br @ i t maximum clam p in g v olta g e pulse current ( see fi g ure 2 ) reverse leakage @ v r device stand-off v oltage v r volts (1) volts min ma clamping v oltage v c @ i pp volts (see figure 2) i pp amps @ v r i r m a device marking 1smb10cat3 1smb11cat3 1smb12cat3 1smb13cat3 10 11 12 13 11.1 12.2 13.3 14.4 1.0 1.0 1.0 1.0 17.0 18.2 19.9 21.5 35.3 33.0 30.2 27.9 5.0 5.0 5.0 5.0 kxc kzc lec lgc 1smb14cat3 1smb15cat3 1smb16cat3 1smb17cat3 14 15 16 17 15.6 16.7 17.8 18.9 1.0 1.0 1.0 1.0 23.2 24.4 26.0 27.6 25.8 24.0 23.1 21.7 5.0 5.0 5.0 5.0 lkc lmc lpc lrc 1smb18cat3 1smb20cat3 1smb22cat3 1smb24cat3 18 20 22 24 20.0 22.2 24.4 26.7 1.0 1.0 1.0 1.0 29.2 32.4 35.5 38.9 20.5 18.5 16.9 15.4 5.0 5.0 5.0 5.0 ltc lvc lxc lzc 1smb26cat3 1smb28cat3 1smb30cat3 1smb33cat3 26 28 30 33 28.9 31.1 33.3 36.7 1.0 1.0 1.0 1.0 42.1 45.4 48.4 53.3 14.2 13.2 12.4 11.3 5.0 5.0 5.0 5.0 mec mgc mkc mmc 1SMB36CAT3 1smb40cat3 1smb43cat3 1smb45cat3 36 40 43 45 40.0 44.4 47.8 50.0 1.0 1.0 1.0 1.0 58.1 64.5 69.4 72.7 10.3 9.3 8.6 8.3 5.0 5.0 5.0 5.0 mpc mrc mtc mvc 1smb48cat3 1smb51cat3 1smb54cat3 1smb58cat3 48 51 54 58 53.3 56.7 60.0 64.4 1.0 1.0 1.0 1.0 77.4 82.4 87.1 93.6 7.7 7.3 6.9 6.4 5.0 5.0 5.0 5.0 mxc mzc nec ngc 1smb60cat3 1smb64cat3 1smb70cat3 1smb75cat3 60 64 70 75 66.7 71.1 77.8 83.3 1.0 1.0 1.0 1.0 96.8 103 113 121 6.2 5.8 5.3 4.9 5.0 5.0 5.0 5.0 nkc nmc npc nrc 1smb78cat3 78 86.7 1.0 126 4.7 5.0 ntc note 1: a transient suppressor is normally selected according to the reverse ostand off voltageo (v r ) which should be equal to or greater than the dc or continuous peak operating voltage level. * * v br measured at pulse test current i t at an ambient temperaure of 25 c. surge current waveform per figure 2 and derate per figure 3 of the general data e 600 watt at the beginning of this group. t3 suffix designates tape and reel of 2500 units.
general data e 600 watt peak power motorola tvs/zener device data 5-3 600 watt peak power data sheet p , peak power (kw) p nonrepetitive pulse waveform shown in figure 2 t p , pulse width 1 10 100 0.1 m s1 m s10 m s 100 m s 1 ms 10 ms 0.1 figure 1. pulse rating curve 01 2 34 0 50 100 t, time (ms) value (%) half value i rsm 2 pulse width (t p ) is defined as that point where the peak current decays to 50% of i rsm . peak value i rsm t r t p t r 10 m s figure 2. pulse waveform typical protection circuit v in v l z in load figure 3. pulse derating curve peak pulse derating in % of peak power or current @ t a = 25 c 100 80 60 40 20 0 0 25 50 75 100 125 150 t a , ambient temperature ( c) 120 140 160 application notes response time in most applications, the transient suppressor device is placed in parallel with the equipment or component to be protected. in this situation, there is a time delay associated with the capacitance of the device and an overshoot condition associated with the inductance of the device and the inductance of the connection method. the capacitive effect is of minor importance in the parallel protection scheme because it only produces a time delay in the transition from the operating voltage to the clamp voltage as shown in figure 4. the inductive effects in the device are due to actual turn-on time (time required for the device to go from zero current to full current) and lead inductance. this inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in figure 5. minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is to clamp voltage spikes. the smb series have a very good response time, typically < 1 ns and negligible inductance. however, external inductive effects could produce unacceptable over- shoot. proper circuit layout, minimum lead lengths and placing the suppressor device as close as possible to the equipment or components to be protected will minimize this overshoot. some input impedance represented by z in is essential to prevent overstress of the protection device. this impedance should be as high as possible, without restricting the circuit operation. duty cycle derating the data of figure 1 applies for non-repetitive conditions and at a lead temperature of 25 c. if the duty cycle increases, the peak power must be reduced as indicated by the curves of figure 6. average power must be derated as the lead or ambient temperature rises above 25 c. the average power derating curve normally given on data sheets may be normalized and used for this purpose. at first glance the derating curves of figure 6 appear to be in error as the 10 ms pulse has a higher derating factor than the 10 m s pulse. however, when the derating factor for a given pulse of figure 6 is multiplied by the peak power value of figure 1 for the same pulse, the results follow the expected trend.
general data e 600 watt peak power motorola tvs/zener device data 5-4 600 watt peak power data sheet v l v v in v in (transient) v l t d v v in (transient) overshoot due to inductive effects t d = time delay due to capacitive effect t t figure 4. figure 5. figure 6. typical derating factor for duty cycle derating factor 1 ms 10 m s 1 0.7 0.5 0.3 0.05 0.1 0.2 0.01 0.02 0.03 0.07 100 m s 0.1 0.2 0.5 2 5 10 50 1 20 100 d, duty cycle (%) pulse width 10 ms ul recognition the entire series has underwriters laboratory recognition for the classification of protectors (qvgv2) under the ul standard for safety 497b and file #116110. many competitors only have one or two devices recognized or have recognition in a non-protective category. some competitors have no recognition at all. with the ul497b recognition, our parts successfully passed several tests including strike voltage breakdown test, endurance conditioning, temperature test, dielectric voltage-withstand test, discharge test and several more. whereas, some competitors have only passed a flammabil- ity test for the package material, we have been recognized for much more to be included in their protector category.
general data e 600 watt peak power motorola tvs/zener device data 5-5 600 watt peak power data sheet 600 watt peak power multiple package quantity (mpq) requirements transient voltage suppressors e surface mounted case 403a plastic (refer to section 10 for surface mount, thermal data and footprint information.) (refer to section 10 for more information on packaging specifications.) package option tape and reel 2.5k type no. suffix t3 (13 inch reel) mpq (units) 0.160 0.130 0.075 0.077 0.0020 0.006 0.030 0.205 0.180 0.150 0.095 0.083 0.0060 0.012 0.050 0.220 b a s c d kp j h notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. d dimension shall be measured within dimension p. min min max max inches millimeters dim a b c d h j k p s 4.06 3.30 1.90 1.96 0.051 0.15 0.76 5.21 4.57 3.81 2.41 2.11 0.152 0.30 1.27 5.59 0.51 ref 0.020 ref smb footprint mm inches 0.085 2.159 0.108 2.743 0.089 2.261
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