1 o maximum ratings (at t a =25 c unless otherwise noted) zs 472 8a th ru zs 475 5a features mechanical data u n i t s symbol min. typ. max. parameter conditions -55 -55 +125 +125 0 c 0 c surface mount zener type surface mount zener type forward voltage power dissipation forward surge current storage temperature operating temperature i f =200madc 8.3ms single half sine-wave superimposed on rated load (jedec method) v f p o i fsm t stg t j v mw ma 1.20 1000 100 1 watt power dissipation high voltages from 3.3~43v designed for mounting on small surface extremely thin/leadless package case molded plastic, jedec do-214ac (sma) t erminals solder plated, solderable per mil-std-750, method 2026 polarity indicated by cathode band mounting position any weight 0.05gram (approx.) s m a / d o - 2 1 4 a c 0.18 9(4.8 ) 0.16 5(4.2 ) 0.01 2(0.3 ) typ . 0.10 6(2.7 ) 0.09 1(2.3 ) 0.16 5(4.2 ) 0.15 0(3.8 ) 0.07 1(1.8 ) 0.05 5(1.4 ) 0.04 0 (1.0 ) typ . 0.04 0(1.0 ) typ . dim ens ions in i nch es a nd (mi llim ete rs) www.paceleader.tw
zs 472 8a th ru zs 475 5a surface mount zener type surface mount zener type o electrical characteristics (at t a =25 c unless otherwise noted) part no. marking code zener voltage v z @i zt volts test current i zt ma ma zener impedance z zt @ i zk z zk @ i zk i zk ohms ohms leakage current i r v r a volts surge current isurge ma note 5% tolerance of zener voltage zs4728a zs4729a zs4730a zs4731a zs4732a zs4733a zs4734a zs4735a zs4736a zs4737a zs4738a zs4739a zs4740a zs4741a zs4742a zs4743a zs4744a zs4745a zs4746a zs4747a zs4748a zs4749a zs4750a zs4751a zs4752a zs4753a zs4754a ZS4755A z3v3 z3v6 z3v9 z4v3 z4v7 z5v1 z5v6 z6v2 z6v8 z7v5 z8v2 z9v1 z10 z11 z12 z13 z15 z16 z18 z20 z22 z24 z27 z30 z33 z36 z39 z43 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 76 79 64 58 53 49 45 41 37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 10 10 9 9 8 7 5 2 3.5 4.0 4.5 5.0 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 150 100 100 50 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 105 2 www.paceleader.tw
3 rating and characteristics curves zs4728a thru ZS4755A zs 472 8a th ru zs 475 5a surface mount zener type surface mount zener type 100 0 7 00 5 00 2 00 1 00 7 0 5 0 2 0 1 0 7 5 2 1 z z ) s n h o ( e c n a d e p m i c i m a n y d 1 2 3 5 7 1 0 2 0 30 5 0 70 100 v z , z e n e r curr e n t ( ma) i z = 1 m a 5 m a 2 0 m a t j = 2 5 i z (m s ) = 0 . 1 i z (do ) f = 6 0 h z 4 0 0 3 0 0 2 0 0 1 0 0 5 0 2 0 1 0 8 4 1 2 5 10 20 50 100 v z , nominal v z (volts) 5 0 % o f br e a kdo wnb ias 0vb i a s 0 v b ias f ig. 1 a - range for units to 12 volts + 12 + 10 + 8 + 6 + 4 + 2 0 - 2 - 4 v z t n e i c i f f e o c e r u t a r e p m e t , ( / v m ) 2 3 4 5 6 7 8 9 10 1 1 12 v z , z ener volt age (volts ) r a n g e v z ?? i zt 1 0 0 7 0 5 0 3 0 2 0 f i g . 1 b - range for unit s to 12 to 10 0 1 0 7 5 3 2 1 v z t n e i c i f f e o c e r u t a r e p m e t , ( / v m ) 10 20 30 50 70 100 v z , z ener volt age (volts ) r a n g e v z ?? i zt f i g ure 2 . t e m perature co efficients (- 5 5 t o+150 t e m perature change;90% of the units are in the ranges indicated.) 1 7 5 1 5 0 1 2 5 1 0 0 7 5 5 0 2 5 0 , l j d a e l o t n o i t c m u j l a m r e h t 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 + 6 + 4 + 2 0 - 2 - 4 v z t n e i c i f f e o c e r u t a r e p m e t ( / v m ) 3 4 5 6 7 8 20m a 1 m a 0 . 0 1 m a v z ?? i z t a = 2 5 note:belo w 3 volt s aand aboce 8 vo l t s change s in zene r c urr e n t do no t l, lead length to heat sink (inches ) v z , z ener volt age ( volt s ) 1 . 2 5 1. 0 0 . 7 5 0. 5 0 . 2 5 f i g ure . 7 - p o wer te m perature derating curve 0 20 40 60 8 0 100 120 140 160 180 20 0 t l , lead temperature ( o c ) p d n o i t a p i s s i d m u m i x a m , ) s t t a w ( @ @ @ ( e c n a t i c a p a c , c p ) f figure 4 . effect of z ene r current f igure 3. t ypical ther mal resistance versus lead www.paceleader.tw
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