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this is information on a product in full production. january 2015 docid022065 rev 4 1/15 SM30TY automotive 3000 w transil? datasheet ? production data features ? peak pulse power: ? 3000 w (10/1000 s) ? up to 36 kw (8/20 s) ? stand-off voltage range: from 5 v to 33 v ? unidirectional and bidirectional types ? operating tj max: 150 c ? high power capability at tjmax: ? 2200 w (10/1000 s) ? jedec registered package outline ? resin meets ul 94, v0 ? aec-q101 qualified complies with the following standards ? iso 10605 - c = 150 pf, r = 330 ? exceeds level 4 ? 30 kv (air discharge) ? 30 kv (contact discharge) ? iso 10605 - c = 330 pf, r = 330 ? exceeds level 4 ? 30 kv (air discharge) ? 30 kv (contact discharge) ? iso 7637-2: ? pulse 1: vs = -150 v ? pulse 2a: vs = +112 v ? pulse 3a: v s = -220 v ? pulse 3b: v s = +150 v description the SM30TY transil series has been designed to protect automotive sensitive circuits against surges defined in iso 7637-2 and against electrostatic discharges according to iso 10605. the planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. SM30TY are packaged in smc (smc footprint in accordance with ipc 7531 standard). tm : transil is a trademark of stmicroelectronics k a unidirectional bidirectional smc (jedec do-214ab) www.st.com
characteristics SM30TY 2/15 docid022065 rev 4 1 characteristics figure 1. electrical characteristics - definitions figure 2. pulse definition for electrical characteristics table 1. absolute maximum ratings (t amb = 25 c ) symbol parameter value unit v pp peak pulse voltage iso10605 (c = 330 pf, r = 330 ? ) contact discharge air discharge iec 61000-4-2 /iso10605 (c = 150 pf, r = 330 ? ) contact discharge air discharge 30 30 30 30 kv p pp peak pulse power dissipation (1) t j initial = t amb 3000 w t stg storage temperature range -65 to + 150 c t j operating junction temperature range -55 to + 150 c t l maximum lead temperature for soldering during 10 s. 260 c 1. for a surge greater than the maximum values, the diode will fail in short-circuit. v cl v br v rm i rm i r i pp v i i rm i r i pp v rm v br v cl v cl v br v rm i rm i r i pp v i i rm i r i pp v rm v br v cl v cl v br v rm i rm i r i pp v i i f v f v cl v br v rm i rm i r i pp v i i f v f unidirectional bidirectional symbol parameter v stand-off voltage v breakdown voltage v clamping voltage i leakage current @ v i peak pulse current t voltage temperature coefficient v forward voltage drop r dynamic resistance rm br cl rm rm pp f d 100 50 0 pulse waveform tr = rise time (s) tp = pulse duration time (s) t %i pp t p t r
docid022065 rev 4 3/15 SM30TY characteristics 15 table 2. electrical characteristics, parameter values (t amb = 25 c) order code i rm max at v rm v br at i r (1) v cl at i pp 10/1000 s r d 10/1000 s v cl at i pp 8/20 s r d 8/20 s ? t (2) min typ max max max max a v v ma v (3) a (4) ? v (3) a (4) ? 10-4/ c sm30t6.8ay/cay 500 5 6.45 6.80 7.10 10 9.20 327 0.007 13.4 1649 0.004 5.7 sm30t7.5ay/cay 250 6.5 7.13 7.50 7.90 10 11.2 268 0.014 14.5 1604 0.004 6.1 sm30t10ay/cay 10 8.5 9.50 10.0 10.5 1 14.4 208 0.021 19.5 1387 0.007 7.3 sm30t12ay/cay 0.2 10 11.4 12.0 12.6 1 17.0 176 0.028 21.7 1170 0.008 7.8 sm30t15ay/cay 0.2 13 14.3 15.0 15.8 1 21.5 140 0.046 27.2 993 0.012 8.4 sm30t18ay/cay 0.2 15 16.7 17.6 18.5 1 24.4 123.0 0.055 32.5 926 0.016 8.8 sm30t19ay/cay 0.2 16 17.8 18.7 19.6 1 26.0 115.4 0.063 34.4 868 0.018 8.8 sm30t21ay/cay 0.2 18 20 21.1 22.2 1 29.2 102.7 0.079 39.3 800 0.023 9.2 sm30t23ay/cay 0.2 20 22.2 23.4 24.6 1 32.4 92.6 0.097 42.8 747 0.026 9.4 sm30t26ay/cay 0.2 22 24.4 25.7 27.0 1 35.5 84.5 0.116 48.3 701 0.032 9.6 sm30t28ay/cay 0.2 24 26.7 28.1 29.5 1 38.9 77.1 0.140 50.0 660 0.033 9.6 sm30t30ay/cay 0.2 26 28.9 30.4 31.9 1 42.1 71.3 0.164 53.5 626 0.037 9.7 sm30t33ay/cay 0.2 28 31.1 32.7 34.3 1 45.4 66.1 0.192 59.0 596 0.044 9.8 sm30t35ay/cay 0.2 30 33.3 35.1 36.9 1 48.4 62.0 0.215 64.3 569 0.051 9.9 sm30t39ay/cay 0.2 33 36.7 38.6 40.5 1 53.3 56.3 0.261 69.7 526 0.059 10 1. pulse test: t p < 50 ms 2. to calculate v br or v cl versus junction temperature, use the following formulas: v br at t j = v br at 25 c x (1 + t x (t j - 25)) v cl at t j = v cl at 25 c x (1 + t x (t j - 25)) 3. to calculate maximum clamping voltage at other surge level, use the following formula: v cl max = v cl - rd x (i pp - i ppappli ) where i ppappli is the surge current in the application. 4. surge capability given for both directions for unidirectional and bidirectional types.
characteristics SM30TY 4/15 docid022065 rev 4 figure 3. peak pulse power dissipation versus initial junction temperature (typical value) figure 4. peak pulse power versus exponential pulse duration (t j initial = 25 c) p(w) pp 0 500 1000 1500 2000 2500 3000 3500 0 25 50 75 100 125 150 175 t (c) j 10/1000 s p (kw) pp 0.1 1.0 10.0 100.0 1000.0 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 1.e+02 t initial = 25 c j t( ) p ms figure 5. clamping voltage versus peak pulse current (exponential waveform, maximum values) figure 6. junction capacitance versus reverse applied voltage for unidirectional types (typical values) 9 &/ 9 , 33 $ 7 m lqlwldo ?& ?v ? v ?v ? v 607$<&$< 607$<&$< 607$<&$< 607$<&$< 9 5 9 & q) ) 0+] 9 26& p9 506 7 m ?& 607$<&$< 607$<&$< 607$<&$< figure 7. junction capacitance versus reverse applied voltage for bidirectional types (typical values) figure 8. leakage current versus junction temperature (typical values) 9 5 9 & q) ) 0+] 9 26& p9 506 7 m ?& 607$<&$< 607$<&$< 607$<&$< 7 m ?& , 5 q$ 9 5 9 50 9 50 9 9 50 ?9
docid022065 rev 4 5/15 SM30TY characteristics 15 figure 11. thermal resistance junction to ambient versus copper surface under each lead figure 9. peak forward voltage drop versus peak forward current (typical values) figure 10. relative variation of thermal impedance, junction to ambient, versus pulse duration i(a) fm 0.1 1.0 10.0 100.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 t = 150 c j t = 25 c j v(v) fm z/r th(j-a) th(j-a) 0.01 0.10 1.00 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 1.e+02 1.e+03 recommended pad layout single pulse t (s) p epoxy printed board, fr4 copper thickness = 35 m 5 wkmd ?&: 6 &8 fpe (sr[\sulqwhgerdug)5frsshuwklfnqhvv ?p
characteristics SM30TY 6/15 docid022065 rev 4 figure 12. iso7637-2 pulse 1 response (v s = -150 v) figure 13. iso7637-2 pulse 2a response (v s = 112 v) $gly 9gly ?vgly ?vgly 607&$< 607&$< 607$< 607$< $gly 9gly ?vgly ?vgly 607&$< 607&$< 607$< 607$<
docid022065 rev 4 7/15 SM30TY characteristics 15 figure 14. iso7637-2 pulse 3a response (v s = -220 v) figure 15. iso7637-2 pulse 3b response (v s = 150 v) note: iso7637-2 pulses responses are not applicable for product with a stand-off voltage lower than the average battery voltage (13.5 v). $gly 9gly qvgly qvgly 607&$< 607&$< 607$< 607$< $gly 9gly qvgly qvgly 607&$< 607&$< 607$< 607$<
characteristics SM30TY 8/15 docid022065 rev 4 figure 16. iso7637-2 pulse 5b definition figure 17. load dump capability (typical values, u s * = f(ri) pulse 5b, us = 87 v, t p = 150 ms) 13.5 v 10% us td 0 battery voltage t us * 9 9 9 9 9 9 607$< 607$< 607$< 6huldo uhvlvwdqfh 98 6 9
docid022065 rev 4 9/15 SM30TY characteristics 15 figure 18. load dump capability (typical values, u s * = f(ri) pulse 5b, u s = 87 v, t p = 400 ms) figure 19. iso16750-2 test b definition 607$< 607$< 607$< 9 9 9 9 6huldo uhvlvwdqfh 9 8 6 9 u a 10% us td battery voltage t us *
characteristics SM30TY 10/15 docid022065 rev 4 figure 20. load dump capability (typical values, u s * = f(ri) test b, u s = 87 v, t p = 150 ms) figure 21. load dump capability (typical values, u s * = f(ri) test b, u s = 87 v, t p = 400 ms) 607$< 607$< 607$< 6huldo uhvlvwdqfh 8 6 9 607$< 607$< 607$< 6huldo uhvlvwdqfh 8 6 9
docid022065 rev 4 11/15 SM30TY application and design guidelines 15 2 application and design guidelines more information is available in the application note an2689 ?protection of automotive electronics from electrical hazards, guidelines for design and component selection?.
package information SM30TY 12/15 docid022065 rev 4 3 package information ? case: jedec do-214ab molded plastic over planar junction ? terminals: solder plated, solderable as per mil-std-750, method 2026 ? polarity: for unidirectional types the band indicates cathode ? flammability: epoxy is rated ul 94, v0 ? rohs package in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. figure 22. smc dimension definitions table 3. smc dimension values 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 3.20 0.114 0.126 c 0.15 0.40 0.006 0.016 d 5.55 6.25 0.218 0.246 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 l 0.75 1.50 0.030 0.059 e c l e2 e1 d a1 a2 b
docid022065 rev 4 13/15 SM30TY package information 15 figure 23. smc footprint dimensions in mm (inches) figure 24. marking layout (1) 1. marking layout can vary according to assembly location. table 4. marking order code marking order code marking sm30t6.8ay 3aaay sm30t6.8cay 3baay sm30t7.5ay 3aacy sm30t7.5cay 3bacy sm30t10ay 3aady sm30t10cay 3bady sm30t12ay 3aawy sm30t12cay 3bawy sm30t15ay 3aagy sm30t15cay 3bagy sm30t18ay 3aahy sm30t18cay 3bahy sm30t19ay 3aaiy sm30t19cay 3baiy sm30t21ay 3aajy sm30t21cay 3bajy sm30t23ay 3aaky sm30t23cay 3baky sm30t26ay 3aaly sm30t26cay 3baly sm30t28ay 3aaey sm30t28cay 3baey sm30t30ay 3aamy sm30t30cay 3bamy sm30t33ay 3aany sm30t33cay 3bany sm30t35ay 3aaoy sm30t35cay 3baoy sm30t39ay 3aapy sm30t39cay 3bapy 8.19 1.54 5.11 1.54 (0.061) (0.201) (0.322) (0.124) (0.061) 3.14 y w w z x x x ecopack compliance xxx: marking z: manufacturing location y: year ww: week cathode bar ( unidirectional devices only )
ordering information SM30TY 14/15 docid022065 rev 4 4 ordering information figure 25. ordering information scheme 5 revision history table 5. ordering information order code marking package weight base qty delivery mode sm30txxay/cay (1) 1. where xxx is nominal value of v br and a or ca indicates unidirectional or bidirectional version. see tab le 2 for list of available devices and their order codes see table 4 on page 13 smc 0.25 g 2500 tape and reel sm 30t xx ca y surface mount surge rating 30 = 3000 w transil in smc breakdown voltage type a = unidirectinal ca = bidirectional automotive grade table 6. document revision history date revision changes 28-jul-2011 1 initial release. 27-mar-2012 2 updated footnote on page 1. removed table 2. thermal parameter. 02-jun-2014 3 updated : features , table 2 , table 4 and reformatted to current standard. 09-jan-2015 4 updated features , table 2 , table 4 , figure 5 to figure 8 and figure 11 to figure 21 .
docid022065 rev 4 15/15 SM30TY 15 important notice ? please read carefully stmicroelectronics nv and its subsidiaries (?st?) reserve the right to make changes, corrections, enhancements, modifications, and improvements to st products and/or to this document at any time without notice. purchasers should obtain the latest relevant in formation on st products before placing orders. st products are sold pursuant to st?s terms and conditions of sale in place at the time of o rder acknowledgement. purchasers are solely responsible for the choice, selection, and use of st products and st assumes no liability for application assistance or the design of purchasers? products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different from the information set forth herein shall void any warranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replaces information previously supplied in any prior versions of this document. ? 2015 stmicroelectronics ? all rights reserved

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