1N957

R SEMICONDUCTOR 0.5W SILICON PLANAR ZENER DIODES DO-35 FEATURES Silic o n p lanar p ower ze ner d iodes Standards zener vo ltag e tol eranc e is +2 0%.A dd su ffix "A" fo r+10% to le ra n ce a nd su ffix "B" fo r + 5% to lera nc e oth e r to le ra nc e, non standards a nd h igher ze ner v ol tag e u p on re qu est 0.079(2.0) MAX DIA 1.083(27.5) MIN 0.150(3.8) MAX MECHANICAL DATA Case: D O -3 5 glass ca se Polarity: C o lor b and d enotes c a tho d e end Weight: A pprox . 0 .1 3 g ram 0.020(0.52) MAX DIA 1.083(27.5) MIN D imensio ns in inc h es a n d (mil lime te rs) ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES) (TA=25 C) Zene r cur rent see table "C haracte ristics" Pow er dis si pation at TA= 2 5 C Jun ction te mpe rature Storage tem perature rang e Ptot TJ TSTG 50 01) 17 5 -6 5 to+ 17 5 mW C C 1) Val id pro vide d that a di stan ce of 8m m fr om case are kept at amb ient te mpe rature ELECTRICAL CHARACTERISTICS (T A=25 C) Therm al r esista nce junc tion to amb ien air t For w ard voltage at IF=2 00m A R JA 30 01) 1.5 C/W VF 1) Val id pro vide d that a di stan ce of 8m m fr om case are kept at amb ient te mpe rature Zener Voltag e range 3) VZNOM V 1N 9 57 1N 9 58 1N 9 59 1N 9 60 1N 9 61 1N 9 62 1N 9 63 1N 9 64 1N 9 65 1N 9 66 1N 9 67 1N 9 68 1N 9 69 1N 9 70 1N 9 71 1N 9 72 1N 9 73 1N 9 74 1N 9 75 1N 9 76 1N 9 77 1N 9 78 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 IZT mA 18 .5 16 .5 15 14 12 .5 11 .5 10 .5 9.5 8.5 7.8 7.0 6.2 5.6 5.2 4.6 4.2 3.8 3.4 3.2 3.0 2.7 2.5 5 11 .5 13 16 17 21 25 29 33 41 49 58 70 80 93 10 5 12 5 15 00 10 00 75 0 70 0 5.5 4.5 ZZT ZZK 1) Test-Voltage IZK mA 1.0 %/ C 0.0 50 0.0 58 0.5 0.0 62 0.0 68 0.0 75 0.0 76 0.0 77 0.0 79 0.0 82 0.0 83 0.0 85 0.0 86 0.2 5 0.0 87 0.0 88 0.0 90 0.0 91 0.0 92 0.0 93 0.0 94 0.0 95 0.0 95 0.0 96 5 IR 2) A 15 0 75 50 10 5 Suffix A V 4.9 5.4 5.9 6.6 7.2 8.0 8.6 9.4 10 .8 11 .5 13 .0 14 .4 15 .8 17 .3 19 .4 21 .6 23 .8 25 .9 28 .1 31 .0 33 .8 36 .7 Suffix B V 5.2 5.7 6.2 6.9 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 35 .8 38 .8 2) mA 47 42 38 35 32 28 26 24 21 19 17 15 14 14 11 10 9.0 8.5 7.8 7.0 6.4 5.9 No tes: (1 )Th e Zene r imp e da n c e is de ri ve d from the 1 kHz A c vo lta g e w hic h re su lts wh e n a n AC c ur re nt ha v ing an RM S va lu e e qu a l to 1 0 % o f the Ze ne r c urre nt (1 ZT) is su p erimp o sed on1 ZT Ze n er im pe da nc e is me asu red at tw o points to insu re a sharp kne e o n th e b rea kd o wn c u r ve a n d to e limina te uns tab le u nits. (2 )va lid provid e d tha t l ead s ar e ke pt a t a m bie nt te mp era ture a t a d istanc e o f 8 m m from c a se . (3 )Me a su re d w ith d e vic e ju nctio n in t he rma l e qu ilib ri um.