surface mount transient voltage suppressors revision february 2 , 201 5 1 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www. unsemi .com .tw for current information. sm 5 z series 1 4 to 36 v 3 600w un semiconductor co., ltd. www. unsemi .com .tw note: (1)non - repetitive current pulse per fig. 3 and derated above t a = 25 c per fig.1 the sm 5 z series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. working voltage: 14 to 3 6 v peak pulse power: 3 600 w ? glass passivated chip ? 3 600 w peak pulse power capability with a 10/1000 us waveform, repetitive rate (duty cycle):0.01 % ? t j = 175 c capability suitable for high reliability and automotive requirement ? meets iso7637 - 2 surge specification (varied by test condition) meet aec - q101 requirement ? low leakage ? uni - directional polarity ? excellent clamping capability ? very fast response time ? rohs compliant use in sensitive electronics protection against voltage transients induced by inductive load switching and lighting, especially for automotive load dump protection application ? case: do - 218ab ? epoxy: ul 94v - 0 rate flame retardant ? polarity: heatsink is anode v r wm 1 4 v to 43v p ppm (10/1000s) 3 600w p ppm (10/1000 0 s) 2 8 00w p d 5 w i fsm 5 00a t j max. 175c package do - 218ab parameter symbol value units peak pulse power dissipation with 10/1000s waveform p ppm 3 600 w with 10/10000s waveform 2 8 00 power dissipa tion on infinite heat sink at t l =25c (fig.1) p d 5 w peak pulse current with a 10/1000s waveform i pp see next table a peak forward surge current 8.3 ms single half sine wave i fsm 5 00 a operating junction and storage temperature range t j , t stg C 55 to +175 c typical thermal resistance, junction to case r jc 0.90 c /watt d escription features mechanical data primary characteristics applications maximum ratings and thermal characteristics (t a =25 unless otherwise noted)
surface mount transient voltage suppressors revision february 2 , 201 5 2 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www. unsemi .com .tw for current information. sm 5 z series 1 4 to 36 v 3 600w un semiconductor co., ltd. www. unsemi .com .tw part number stand - off voltage v mw (v) breakdown voltage v br (v) test current i t (ma) maximum reverse leakage i r @v rwm (ua) maximum i r @v rwm t j =175 (ua) maximum reverse surge current i pp (a) (1) maximum clamping voltage v c @i pp (v) min . max . sm 5 z 1 4a 14 sm8z15a 16.70 18.50 5 10 150 15 270.0 24.4 sm8z16a 17.80 19.70 5 10 150 16 254.0 26.0 sm8z17a 18.90 20.90 5 10 150 17 239.0 27.6 sm8z18a 20.00 22.10 5 10 150 18 226.0 29.2 sm8z20a 22.20 24.50 5 10 150 20 204.0 32.4 sm8z22a 24.40 26.90 5 10 150 22 186.0 35.5 sm8z24a 26.70 29.50 5 10 150 24 170.0 38.9 sm8z26a 28.90 31.90 5 10 150 2 6 157.0 42.1 sm8z28a 31.10 34.40 5 10 150 28 145.0 45.4 sm8z30a 33.30 36.80 5 10 150 30 136.0 48.4 sm8z33a 36.70 40.60 5 10 150 33 15.60 17.20 5 10 150 14 284.0 23.2 sm8z1 5a 16.70 18.50 5 10 150 15 270.0 24.4 sm8z1 6a 17.80 19.70 5 10 150 16 254.0 26.0 sm8z1 7a 18.90 20.90 5 10 150 17 239.0 27.6 sm8z1 8a 20.00 22.10 5 10 150 18 226.0 29.2 sm8z2 0a 22.20 24.50 5 10 150 20 204 .0 32.4 sm8z2 2a 24.40 26.90 5 10 150 22 186.0 35.5 sm8z2 17.20 5.0 10 1 50 1 5 5 .0 23.2 sm 5 z 1 5a 15 16.70 18.50 5.0 1 0 1 50 1 4 8 .0 24.4 sm 5 z 1 6a 16 1 7.80 19.70 5.0 10 1 50 1 3 8 .0 2 6.0 sm 5 z 1 7a 17 1 8.90 20.90 5.0 10 1 50 1 3 0 .0 27.6 sm 5 z 1 8a 18 20.00 22.10 5.0 10 150 1 2 3 .0 29.2 sm 5 z20a 20 22.20 24.50 5.0 10 150 1 1 1 .0 32.4 sm 5 z22a 22 24.40 26.90 5.0 10 150 1 0 1 .0 35.5 sm 5 z24a 24 26.70 29.50 5.0 10 150 9 3 .0 38.9 sm 5 z26a 26 28.90 31.90 5.0 10 150 8 6 .0 42.1 sm 5 z 28 a 28 31.10 34.40 5.0 10 150 7 9 .0 45.4 sm 5 z 30 a 30 33.30 36.80 5.0 10 150 7 4 .0 48.4 sm 5 z 33 a 33 36.70 40.60 5.0 10 150 6 8 .0 53.3 sm 5 z 36 a 36 40.00 44.20 5.0 10 150 6 2 .0 58.1 note : surge current waveform is defined at 10/1000us waveform electrical characteristics ( @ 25 unless otherwise specified ) ratings and characteristics curves (t a =2 5 unless otherwise noted) figure 1 C power derating curve figure 2 - load dump power characteristics (10 ms exponential waveform)
surface mount transient voltage suppressors revision february 2 , 201 5 3 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www. unsemi .com .tw for current information. sm 5 z series 1 4 to 36 v 3 600w un semiconductor co., ltd. www. unsemi .com .tw figure 3 - pulse w a veform fi g. 4 - peak pulse power rating curve package outline dimensions unit: inches (millimeters)
surface mount transient voltage suppressors revision february 2 , 201 5 4 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www. unsemi .com .tw for current information. sm 5 z series 1 4 to 36 v 3 600w un semiconductor co., ltd. www. unsemi .com .tw surface mount tape and reel packaging recommended soldering parameters
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