smcj5.0a-tr,ca-tr smcj188a-tr,ca-tr transil tm ? peak pulse power : 1500 w (10/1000 m s) stand off voltage range : from 5v to 188v. uni and bidirectional types low clamping factor fast response time features smc (jedec do-214ab) symbol parameter value unit p pp peak pulse power dissipation (see note 1) tj initial = t amb 1500 w p power dissipation on infinite heatsink t amb = 50 c 6.5 w i fsm non repetitive surge peak forward current for unidirectional types tp = 10ms tj initial = t amb 200 a t stg t j storage temperature range maximum junction temperature - 65 to + 175 150 c c t l maximum lead temperature for soldering during 10 s. 260 c note 1 : for a surge greater than the maximum values, the diode will fail in short-circuit. absolute maximum ratings (t amb =25 c) description the smcj series are transil tm diodesdesigned specifically for protecting sensitive equipment against transient overvoltages. transil diodes provide high overvoltage protection by clamping action. their instantaneous response to transient overvoltages makes them particularly suited to protect voltage sensitive devices such as mos technology and low voltage supplied ic's. november 1998 - ed: 4a symbol parameter value unit r th (j-l) junction to leads 15 c/w r th (j-a) junction to ambient on printed circuit on recommended pad layout 75 c/w thermal resistances 1/5
i i f v f v v cl v br v rm i pp i rm v symbol parameter v rm stand-off voltage v br breakdown voltage v cl clamping voltage i rm leakage current @ v rm i pp peak pulse current a t voltage temperature coefficient v f forward voltage drop electrical characteristics (t amb =25 c) types i rm @v rm v br @i r v cl @i pp v cl @i pp a tc max min max max max typ note2 10/1000 m s 8/20 m s note3 note4 unidirectional mark. bidirectional mark. m avvmavava10 -4 / cpf smcj5.0a-tr fua smcj5.0ca-tr fba 800 5.0 6.4 10 9.2 171 13.4 746 5.7 9500 smcj6.0a-tr fub smcj6.0ca-tr fbb 800 6.0 6.7 10 10.3 152 13.7 730 5.9 9000 smcj6.5a-tr fuc smcj6.5ca-tr fbc 500 6.5 7.2 10 11.2 140 14.5 690 6.1 8500 smcj8.5a-tr fud smcj8.5ca-tr fbd 5 8.5 9.4 1 14.4 105 19.5 512 7.3 7000 smc10a-tr fuf smcj10ca-tr fbf 5 10 11.1 1 17 92 21.7 461 7.8 6000 smcj12a-tr fuh smcj12ca-tr fbh 5 12 13.3 1 19.9 79 25.3 394 8.3 5250 smcj13a-tr fui smcj13ca-tr fbi 1 13 14.4 1 21.5 73 27.2 368 8.4 5000 smcj15a-tr fuj smcj15ca-tr fbj 1 15 16.7 1 24.4 64 32.5 308 8.8 4300 smcj18a-tr ful smcj18ca-tr fbl 1 18 20 1 29.2 53 39.3 254 9.2 3700 smcj20a-tr fum smcj20ca-tr fbm 1 20 22.2 1 32.4 48 42.8 234 9.4 3500 smcj22a-tr fun smcj22ca-tr fbn 1 22 24.4 1 35.5 44 48.3 207 9.6 3200 smcj24a-tr fuo smcj24ca-tr fbo 1 24 26.7 1 38.9 40 50 200 9.6 3050 smcj26a-tr fup smcj26ca-tr fbp 1 26 28.9 1 42.1 37 53.5 187 9.7 2900 smcj28a-tr fuq smcj28ca-tr fbq 1 28 31.1 1 45.4 34 59 169 9.8 2700 smcj30a-tr fur smcj30ca-tr fbr 1 30 33.3 1 48.4 32 64.3 156 9.9 2500 SMCJ33A-TR fus smcj33ca-tr fbs 1 33 36.7 1 53.3 29 69.7 143 10.0 2400 smcj40a-tr fuu smcj40ca-tr fbu 1 40 44.4 1 64.5 24 84 119 10.1 2050 smcj48a-tr fuw smcj48ca-tr fbw 1 48 53.3 1 77.4 20 100 100 10.3 1800 smcj58a-tr fuz smcj58ca-tr fbz 1 58 64.4 1 93.6 16 121 83 10.4 1550 smcj70a-tr gub smcj70ca-tr gbb 1 70 77.8 1 113 13.9 146 69 10.5 1350 smcj85a-tr gue smcj85ca-tr gbe 1 85 94.4 1 137 11.5 178 56 10.6 1150 smcj100a-tr gug smcj100ca-tr gbg 1 100 111 1 162 9.7 212 47 10.7 1000 smcj130a-tr gui smcj130ca-tr gbi 1 130 144 1 209 7.5 265 38 10.8 850 smcj154a-tr gul smcj154ca-tr gbl 1 154 171 1 246 6.1 317 31.5 10.8 725 smcj170a-tr gum smcj170ca-tr gbm 1 170 189 1 275 5.7 353 28 10.8 675 smcj188a-tr gun smcj188ca-tr gbn 1 188 209 1 328 4.6 388 26 10.8 625 note 2 : pulse test : t p <50ms. note 3 : d v br = a t * (t amb - 25) * v br (25 c). note 4 : v r = 0 v, f = 1 mhz. for bidirectional types, capacitance value is divided by 2. 10 s 1000 s %i pp 50 0 t pulse waveform 10/ 1000 s 100 smcjxxxa-tr, ca-tr 2/5
order code bidirectional no suffix : unidirectional surface mount stand off voltage 1500 watts sm c j 85 c a -tr tape & reel 0 25 50 75 100 125 150 175 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 tj initial( c) ppp[tj initial]/ppp[tj initial=25 c] fig. 1: peak power dissipation versus initial junc- tion temperature. 0.01 0.10 1.00 10.00 0.1 1.0 10.0 50.0 tp(ms) ppp(kw) fig. 3: peak pulse power versus exponentialpulse duration (tj initial=25 c). 0 25 50 75 100 125 150 0 1 2 3 4 5 6 7 8 tamb( c) p(w) rth(j-a)=rth(j-l) rth(j-a)=75 c/w fig. 2: continous power dissipation versus initial junction temperature. 1 10 100 1000 1e-1 1e+0 1e+1 1e+2 1e+3 vcl(v) ipp(a) tp=20 m s tp=1ms smcj5.0a,ca smcj58a,ca smcj33a,ca smcj18a,ca smcj8.5a,ca smcj130a,ca smcj188a,ca fig. 4: clamping voltage versus peak pulse cur- rent (tj initial=25 c). exponentialwaveform tp=20 m s & tp=1ms. smcjxxxa-tr, ca-tr 3/5
1 10 100 200 0.01 0.10 1.00 10.00 vr(v) c(nf) f=1mhz smcj5.0a smcj188a smcj58a smcj33a smcj18a fig. 5-1: capacitance versus reverse applied volt- age (typical values) (smcjxxa serie). 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.1 1.0 10.0 100.0 200.0 vfm(v) ifm(a) tj=25 c tj=125 c fig. 6: peak forward voltage drop versus peak for- ward current (typical values). 012345 40 50 60 70 80 90 100 s(cm ) rth(j-a) ( c/w) fig. 8: thermal resistance junction to ambient ver- sus copper surface under each lead (printed circuit board fr4, e(cu)=35 m m) 1 10 100 200 0.01 0.10 1.00 10.00 vr(v) c(nf) f=1mhz smcj5.0ca smcj188ca smcj58ca smcj33ca smcj18ca fig. 5-2: capacitance versus reverse applied volt- age (typical values) (smcjxxca serie). 1e-2 1e-1 1e+0 1e+1 1e+2 5e+2 0.01 0.10 1.00 tp(s) zth(j-a)/rth(j-a) fig. 7: relative variation of thermal impedance junction to ambient versus pulse duration. (printed circuit board fr4, s(cu)=1cm 2 ). 0 25 50 75 100 125 150 1e-1 1e+0 1e+1 1e+2 1e+3 2e+3 tj( c) ir[tj] / ir [tj=25 c] vbr<8.5v vbr upper or equal to 8.5v fig. 9: relative variation of leakage current versus junction temperature. smcjxxxa-tr, ca-tr 4/5
ref. dimensions millimeters inches min. max. min. max. a1 1.90 2.45 0.075 0.096 a2 0.05 0.20 0.002 0.008 b 2.90 3.2 0.114 0.126 c 0.15 0.41 0.006 0.016 e 7.75 8.15 0.305 0.321 e1 6.60 7.15 0.260 0.281 e2 4.40 4.70 0.173 0.185 d 5.55 6.25 0.218 0.246 l 0.75 1.60 0.030 0.063 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap- proval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics ? 1998 stmicroelectronics - printed in italy - all rights reserved. stmicroelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - mexico - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. http://www.st.com packaging : standard packaging is in tape and reel. package mechanical data smc (plastic) e c l e2 e1 d a1 a2 b marking : logo, date code, type code, cathode band (for unidirectional types only). footprint dimensions (millimeter) smc plastic. 2.0 4.2 2.0 3.3 weight : 0.25 g smcjxxxa-tr, ca-tr 5/5
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