1n957b thru 1n992b silicon zener diode 6.8 volts thru 200 volts 500mw, 5% tolerance description: the central semiconductor 1n957b series silicon zener diode is a high quality voltage regulator designed for use in industrial, commercial, entertainment and computer applications. maximum ratings: (t l =75c) symbol units power dissipation p d 500 mw operating and storage junction temperature t j , t stg -65 to +200 c v z tolerance: part number with ?b? suffix 5 % v z tolerance: part number with ?c? suffix 2 % v z tolerance: part number with ?d? suffix 1 % electrical characteristics: (t a =25c) v f =1.5v max @ i f =200ma (for all types) type zener voltage v z @ i zt test current maximum zener impedance maximum reverse current maximum zener current min nom max i zt z zt @ i zt z zk @ i zk i r @ v r i zm v v v ma ma a v ma 1n957b 6.460 6.8 7.140 18.5 4.5 700 1.00 150 5.2 47 1n958b 7.125 7.5 7.875 16.5 5.5 700 0.50 75 5.7 42 1n959b 7.790 8.2 8.610 15.0 6.5 700 0.50 50 6.2 38 1n960b 8.645 9.1 9.555 14.0 7.5 700 0.50 25 6.9 35 1n961b 9.500 10 10.50 12.5 8.5 700 0.25 10 7.6 32 1n962b 10.45 11 11.55 11.5 9.5 700 0.25 5.0 8.4 28 1n963b 11.40 12 12.60 10.5 11.5 700 0.25 5.0 9.1 26 1n964b 12.35 13 13.65 9.5 13.0 700 0.25 5.0 9.9 24 1n965b 14.25 15 15.75 8.5 16.0 700 0.25 5.0 11.4 21 1n966b 15.20 16 16.80 7.8 17.0 700 0.25 5.0 12.2 19 1n967b 17.10 18 18.90 7.0 21.0 750 0.25 5.0 13.7 17 1n968b 19.00 20 21.00 6.2 25.0 750 0.25 5.0 15.2 15 1n969b 20.90 22 23.10 5.6 29.0 750 0.25 5.0 16.7 14 1n970b 22.80 24 25.20 5.2 33.0 750 0.25 5.0 18.2 13 1n971b 25.65 27 28.35 4.6 41.0 750 0.25 5.0 20.6 11 1n972b 28.50 30 31.50 4.2 49.0 1000 0.25 5.0 22.8 10 1n973b 31.35 33 34.65 3.8 58.0 1000 0.25 5.0 25.1 9.2 1n974b 34.20 36 37.80 3.4 70.0 1000 0.25 5.0 27.4 8.5 1n975b 37.05 39 40.95 3.2 80.0 1000 0.25 5.0 29.7 7.8 1n976b 40.85 43 45.15 3.0 93.0 1500 0.25 5.0 32.7 7.0 1n977b 44.65 47 49.35 2.7 105 1500 0.25 5.0 35.8 6.4 1n978b 48.45 51 53.55 2.5 125 2000 0.25 5.0 38.8 5.9 1n979b 53.20 56 58.80 2.2 150 2000 0.25 5.0 42.6 5.4 1n980b 58.90 62 65.10 2.0 185 2000 0.25 5.0 47.1 4.9 1n981b 64.60 68 71.40 1.8 230 2000 0.25 5.0 51.7 4.5 1n982b 71.25 75 78.75 1.7 270 2000 0.25 5.0 56.0 4.0 do-35 case r1 (27-october 2011) www.centralsemi.com
1n957b thru 1n992b silicon zener diode 6.8 volts thru 200 volts 500mw, 5% tolerance do-35 case - mechanical outline electrical characteristics - continued: (t a =25c) v f =1.5v max @ i f =200ma (for all types) type zener voltage v z @ i zt test current maximum zener impedance maximum reverse current maximum zener current min nom max i zt z zt @ i zt z zk @ i zk i r @ v r i zm v v v ma ma a v ma 1n983b 77.90 82 86.10 1.5 330 3000 0.25 5.0 62.2 3.7 1n984b 86.45 91 95.55 1.4 400 3000 0.25 5.0 69.2 3.3 1n985b 95.00 100 105.0 1.3 500 3000 0.25 5.0 76.0 3.0 1n986b 104.5 110 115.5 1.1 750 4000 0.25 5.0 83.6 2.7 1n987b 114.0 120 126.0 1.0 900 4500 0.25 5.0 91.2 2.5 1n988b 123.5 130 136.5 0.95 1100 5000 0.25 5.0 98.8 2.3 1n989b 142.5 150 157.5 0.85 1500 6000 0.25 5.0 114.0 2.0 1N990B 152.0 160 168.0 0.80 1700 6500 0.25 5.0 121.6 1.9 1n991b 171.0 180 189.0 0.68 2200 7100 0.25 5.0 136.8 1.7 1n992b 190.0 200 210.0 0.65 2500 8000 0.25 5.0 152.0 1.5 www.centralsemi.com r1 (27-october 2011)
1n957b thru 1n992b silicon zener diode 6.8 volts thru 200 volts 500mw, 5% tolerance r1 (27-october 2011) typical electrical characteristics www.centralsemi.com
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