6 lake street, lawrence, massachusetts 01841 phone (978) 620-2600 fax (978) 689-0803 website: http://www.microsemi.com 23 maximum ratings operating temperature: -65c to +175c storage temperature: -65c to +175c dc power dissipation: 500 mw @ +50c power derating: 4 mw / c above +50c forward voltage @ 200ma: 1.1volts maximum electrical characteristics @ 25c jedec nominal zener max. dc type zener test maximum zener impedance zener max. reverse number voltage current current leakage current v z 1 zt (note 3) (note 1) (note 2) z zt @ 1 zt z zk @ 1 zk 1 zm l r @ v r volts ma ohms ohms ma ma a volts 1n957b 6.8 18.5 4.5 700 1.0 55 5 5.2 1n958b 7.5 16.5 5.5 700 .5 50 5 5.7 1n959b 8.2 15.0 6.5 700 .5 45 5 6.2 1n960b 9.1 14.0 7.5 700 .5 41 5 6.9 1n961b 10 12.5 8.5 700 .25 38 2 7.6 1n962b 11 11.5 9.5 700 .25 32 1 8.4 1n963b 12 10.5 11.5 700 .25 31 1 9.1 1n964b 13 9.5 13 700 .25 28 0.5 9.9 1n965b 15 8.5 16 700 .25 25 0.5 11 1n966b 16 7.8 17 700 .25 24 0.5 12 1n967b 18 7.0 21 750 .25 20 0.5 14 1n968b 20 6.2 25 750 .25 18 0.5 15 1n969b 22 5.6 29 750 .25 16 0.5 17 1n970b 24 5.2 33 750 .25 15 0.5 18 1n971b 27 4.6 41 750 .25 13 0.5 21 1n972b 30 4.2 49 1000 .25 12 0.5 23 1n973b 33 3.8 58 1000 .25 11 0.5 25 1n974b 36 3.4 70 1000 .25 10 0.5 27 1n975b 39 3.2 90 1000 .25 9.5 0.5 30 1n976b 43 3.0 93 1500 .25 8.8 0.5 33 1n977b 47 2.7 105 1500 .25 7.9 0.5 36 1n978b 51 2.5 125 1500 .25 7.4 0.5 39 1n979b 56 2.2 150 2000 .25 6.8 0.5 43 1n980b 62 2.0 185 2000 .25 6.0 0.5 47 1n981b 68 1.8 230 2000 .25 5.5 0.5 52 1n982b 75 1.7 270 2000 .25 5.0 0.5 56 1n983b 82 1.5 330 3000 .25 4.6 0.5 62 1n984b 91 1.4 400 3000 .25 4.1 0.5 69 1n985b 100 1.3 500 3000 .25 3.7 0.5 76 1n986b 110 1.1 750 4000 .25 3.3 0.5 84 note 1 zener voltage tolerance on "b"suffix is + 5%. suffix letter a denotes +10%. no suffix denotes + 20% tolerance, "c" suffix denotes + 2% and "d" suffix denotes + 1%. note 2 zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25c + 3c. note 3 zener impedance is derived by superimposing on 1 zt a 60hz rms a.c. current equal to 10% of 1 zt figure 1 design data case: hermetically sealed glass case. do ? 35 outline. lead material: copper clad steel. lead finish: tin / lead thermal resistance: ( r o jec ): 250 c/w maximum at l = .375 inch thermal impedance: ( z o jx ): 35 c/w maximum polarity: diode to be operated with the banded (cathode) end positive. mounting position: any. ? 1n962b-1 thru 1N986B-1 available in jan, jantx and jantxv per mil-prf-19500/117 ? metallurgically bonded ? double plug construction 1n957 thru 1n986b and 1n962b-1 thru 1N986B-1
24 0 25 50 75 100 125 150 175 t a , ambient temperature (c) power derating curve 500 400 300 200 100 0 pd, rated power dissipation (mw) .1 .2 .3 .4 .5 1 2 5 10 20 30 40 50 100 operating current l zt (ma) figure 3 zener impedance vs. operating current 1000 500 400 300 200 100 50 40 30 20 10 5 4 3 2 1 zener impedance z zt (ohms) 1n957 thru 1n986b including -1 versions figure 2 3.3 volt 5.1 volt 27 volt 11 volt 6.2 volt
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