1/6 bzw04-5v8/376 bzw04-5v8b/376b transil tm n peak pulse power : 400 w (10/1000 m s) n stand-off voltage range : from 5.8v to 376 v n uni and bidirectional types n low clamping factor n fast response time n ul recognized features f126 symbol parameter value unit p pp peak pulse power dissipation (see note 1) tj initial = tamb 400 w p power dissipation on infinite heatsink t amb =75 c 1.7 w i fsm non repetitive surge peak forward current for unidirectional types tp = 10ms tj initial = t amb 30 a t stg t j storage temperature range maximum junction temperature - 65 to + 175 175 c c t l maximum lead temperature for soldering during 10s a 5mm from case. 230 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 transil diodes provide high overvoltage protection by clamping action. their instantaneous response to transient overvoltages makes them particu- larly suited to protect voltage sensitive devices such as mos technology and low voltage sup- plied ic's. august 2001- ed : 2 symbol parameter value unit r th (j-l) junction to leads 60 c/w r th (j-a) junction to ambient on printed circuit. l lead = 10 mm 100 c/w thermal resistances ?
bzw04-xx 2/6 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 bidirectional m av vmav a va10 -4 / cpf bzw04-5v8 bzw04-5v8b 1000 5.8 6.45 10 10.5 38.0 13.4 174 5.7 3500 bzw04-6v4 bzw04-6v4b 500 6.4 7.13 10 11.3 35.4 14.5 160 6.1 3100 bzw04-8v5 bzw04-8v5b 10 8.5 9.5 1 14.5 27.6 18.6 124 7.3 2000 bzw04-10 bzw04-10b 5 10.2 11.4 1 16.7 24.0 21.7 106 7.8 1550 bzw04-13 bzw04-13b 5 12.8 14.3 1 21.2 19.0 27.2 85 8.4 1200 bzw04-15 bzw04-15b 1 15.3 17.1 1 25.2 16.0 32.5 71 8.8 975 bzw04-19 bzw04-19b 1 18.8 20.9 1 30.6 13.0 39.3 59 9.2 800 bzw04-20 BZW04-20B 1 20.5 22.8 1 33.2 12.0 42.8 54 9.4 725 bzw04-23 bzw04-23b 1 23.1 25.7 1 37.5 10.7 48.3 48 9.6 625 bzw04-26 bzw04-26b 1 25.6 28.5 1 41.5 9.6 53.5 43 9.7 575 bzw04-28 bzw04-28b 1 28.2 31.4 1 45.7 8.8 59.0 39 9.8 510 bzw04-31 bzw04-31b 1 30.8 34.2 1 49.9 8.0 64.3 36 9.6 480 bzw04-33 bzw04-33b 1 33.3 37.1 1 53.9 7.4 69.7 33 10.0 450 bzw04-40 bzw04-40b 1 40.2 44.7 1 64.8 6.2 84 27 10.1 370 bzw04-48 bzw04-48b 1 47.8 53.2 1 77.0 5.2 100 23 10.3 320 bzw04-58 bzw04-58b 1 58.1 64.6 1 92.0 4.3 121 19 10.4 270 bzw04-70 bzw04-70b 1 70.1 77.9 1 113 3.5 146 16.0 10.5 230 bzw04-85 bzw04-85b 1 85.5 95.0 1 137 2.9 178 13.0 10.6 200 bzw04-102 bzw04-102b 1 102 114 1 165 2.4 212 11.0 10.7 170 bzw04-128 bzw04-128b 1 128 143 1 207 2.0 265 9.0 10.8 145 bzw04-154 bzw04-154b 1 154 171 1 246 1.6 317 7.0 10.8 125 bzw04-171 bzw04-171b 1 171 190 1 274 1.5 353 6.5 10.8 120 bzw04-188 bzw04-188b 1 188 209 1 328 1.4 388 6.0 10.8 110 bzw04-213 bzw04-213b 1 231 237 1 344 1.5 442 5.2 11.0 100 bzw04-256 bzw04-256b 1 256 285 1 414 1.2 529 4.3 11.0 90
bzw04-xx 3/6 types i rm @v rm v br @i r v cl @i pp v cl @i pp a tc min max max max typ note2 10/1000 m s 8/20 m s note3 note4 unidirectional bidirectional m avvmavava10 -4 / cpf bzw04-273 bzw04-273b 1 273 304 1 438 1.2 564 4.0 11.0 85 bzw04-299 bzw04-299b 1 299 332 1 482 0.9 618 3.7 11.0 80 bzw04-342 bzw04-342b 1 342 380 1 548 0.9 706 3.2 11.0 75 bzw04-376 bzw04-376b 1 376 418 1 603 0.8 776 3.0 11.0 70 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 fig. 1: peak pulse power dissipation versus initial junction temperature (printed circuit board). 10 s 1000 s %i pp 50 0 t pulse waveform 10/1000 s 100
bzw04-xx 4/6 0.001 0.01 0.1 1 10 100 tp (ms ) expo. 1e3 1e2 1e1 1e5 1e4 p (w) pp tj initial = 25 c fig. 2 : peak pulse power versus exponential pulse duration. 0.1 1 10 100 1000 1 10 100 1000 10 100 bwz04 5v8 bwz04 8v5 bwz04 33 bwz04 213 bwz04 376 v(v) cl ipp (a) t %ipp 100 50 0 t r t<10 s r t - - - - - tj initial = 25 c fig. 3 : clamping voltage versus peak pulse current. exponential waveform t p =20 m s________ t p = 1 mseeeeee- t p = 10 ms............... note : the curves of the figure 3 are specified for a junction temperature of 25 c before surge. the given results may be extrapolated for other junction temperatures by using the following formula : d v br = a t * (t amb -25) * v br (25 c). for intermediate voltages, extrapolate the given results.
bzw04-xx 5/6 0.01 0.1 1 10 100 1000 1 10 100 zth (j-a) ( c/w) tp(s) fig. 6: transient thermal impedance junction ambi - ent versus pulse duration (for fr4 pc board with l lead = 10mm). fig. 5: peak forward voltage drop versus peak forward current (typical values for unidirectional types). note : multiply by 2 for units with v br > 220v. c(pf) 110100 10 100 1000 10000 b z w0 4 - 1 3 b b z w 0 4 - 5 v 8 b b z w0 4 - 5 8 b b z w0 4 - 1 7 1 b b z w0 4 - 3 4 2 b b z w 0 4 - 2 6 b v(v) r tj = 25 c f=1mhz fig. 4b: capacitance versus reverse applied voltage for bidirectional types (typical values). c(pf) 1 10 100 1 10 100 1000 10000 b z w 0 4 1 3 b z w 0 4 5 v 8 b z w 0 4 5 8 b z w 0 4 1 7 1 b z w 0 4 3 4 2 b z w 0 4 2 6 v(v) r tj = 25 c f=1mhz - - - - - - fig. 4a: capacitance versus reverse applied voltage for unidirectional types (typical values). fig. 7 : relative variation of leakage current versus junction temperature.
bzw04-xx 6/6 packaging : standardpackaging is in tape and reel. package mechanical data f126 (plastic) weight = 0.40 g. marking : logo, date code, type code, cathode band (for unidirectional types only). ref. dimensions millimeters inches min. typ. max. min. typ. max. a 6.05 6.20 6.35 0.238 0.244 0.250 b 26 31 1.024 1.220 ? c 2.95 3.00 3.05 0.116 0.118 0.120 ? d 0.76 0.81 0.86 0.030 0.032 0.034 l1 1.27 0.050 note 1 : the lead is not controlled within zone l 1 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 ? 2001 stmicroelectronics - printed in italy - all rights reserved. stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com bzw 04 - 10 b rl 400w stand-off voltage bidirectional no suffix: unidirectional packaging: ` ` = ammopack tape `rl' = tape & reel order
|
