1 revision date: 11/4/2009 new product silicon zener diode series 1n957b thru 1n992b maximum ratings operating & storage temperature: -65c to +175c thermal resistance: 250c/w steady-state power: 0.5 watts foward voltage @200 ma: 1.1 v for 1n 975b - 1n985b 1.3 v for 1n985 - 1n992b features ? available in jan, jantx and jantxv per mil-prf-19500/117 ? standard voltage tolerences are plus/minus 5% with b suffix, 10% with a suffix identification. ? tight tolerences available in plus or minus 2% or 1% with c or d suffix respectively. ? 500 mw power handling ? hermetically sealed axial-leaded glass do-35 package. normal zener maximum zener maximum dc maxmum surge maximum reverse maximum jedec zener test impedance zener current leakage current temperature type voltage current coefficient number v z i zt z zt @ i zt z zk @ i zk i zm i zsm i r @ v r vz (note1) volts ma ohms ohms ma ma ma a volts %/c 1n957b 6.8 18.5 4.5 700 1.0 55 300 150 5.2 +0.05 1n958b 7.5 16.5 5.5 700 .5 50 275 75 5.7 +0.058 1n959b 8.2 15.0 6.5 700 .5 45 250 50 6.2 +0.065 1n960b 9.1 14.0 7.5 700 .5 41 225 25 6.9 +0.068 1n961b 10 12.5 8.5 700 .25 38 200 10 7.6 +0.075 1n962b 11 11.5 9.5 700 .25 32 175 5 8.4 +0.076 1n963b 12 10.5 11.5 700 .25 31 160 5 9.1 +0.077 1n964b 13 9.5 13 700 .25 28 150 5 9.9 +0.079 1n965b 15 8.5 16 700 .25 25 130 5 11.4 +0.082 1n966b 16 7.8 17 700 .25 24 120 5 12.2 +0.083 1n967b 18 7.0 21 750 .25 20 110 5 13.7 +0.085 1n968b 20 6.2 25 750 .25 18 100 5 15.2 +0.086 1n969b 22 5.6 29 750 .25 16 90 5 16.7 +0.087 1n970b 24 5.2 33 750 .25 15 80 5 18.2 +0.088 1n971b 27 4.6 41 750 .25 13 70 5 20.6 +0.090 1n972b 30 4.2 49 1000 .25 12 65 5 22.8 +0.091 1n973b 33 3.8 58 1000 .25 11 60 5 25.1 +0.092 1n974b 36 3.4 70 1000 .25 10 55 5 27.4 +0.093 1n975b 39 3.2 80 1000 .25 9.5 46 5 29.7 +0.094 1n976b 43 3.0 93 1000 .25 8.8 44 5 32.7 +0.095 1n977b 47 2.7 105 1500 .25 7.9 40 5 35.8 +0.095 1n978b 51 2.5 125 1500 .25 7.4 37 5 38.8 +0.096 1n979b 56 2.2 150 2000 .25 6.8 35 5 42.6 +0.096 1n980b 62 2.0 185 2000 .25 6.0 30 5 47.1 +0.097 1n981b 68 1.8 230 2000 .25 5.5 28 5 51.7 +0.097 1n982b 75 1.7 270 2000 .25 5.0 26 5 56.0 +0.098 1n983b 82 1.5 330 3000 .25 4.6 23 5 62.2 +0.098 1n984b 91 1.4 400 3000 .25 4.1 21 5 69.2 +0.099 1n985b 100 1.3 500 3000 .25 3.7 18 5 76.0 +0.11 1n986b 110 1.1 750 4000 .25 3.3 16 5 83.6 +0.11 1n987b 120 1.0 900 4500 .25 3.1 15 5 91.2 +0.11 1n988b 130 0.95 1100 5000 .25 2.7 13 5 98.8 +0.11 1n989b 150 0.85 1500 6000 .25 2.4 12 5 114.0 +0.11 1n990b 160 0.80 1700 6500 .25 2.2 11 5 121.6 +0.11 1n991b 180 0.68 2200 7100 .25 2.0 10 5 136.8 +0.11 1n992b 200 0.65 2500 8000 .25 1.8 9 5 152.0 +0.11 electrical specifications @ +25 oc (unless otherwise specified) note 1: the jedec type numbers shown (b suffix) have a + 5% tolerence on nominal zener votlage. the suffix a is used to identify + 10% tolerance; suffix c is used to identify + 2%: and suffix d is used identify + 1%; no suffix indicates + 20%.
our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused. revision date: 11/4/2009 aeroflex / metelics, inc. 975 stewart drive, 54 grenier field road, sunnyvale, ca 94085 londonderry, nh 03053 tel: (408) 737-8181 tel: (603) 641-3800 fax: (408) 733-7645 fax: (603)-641-3500 sales: 888-641-semi (7364) hi-rel components 9 hampshire street, lawrence, ma 01840 tel: (603) 641-3800 fax: (978) 683-3264 www.aeroflex.com/metelics-hirelcomponents aeroflex / metelics, inc. reserves the right to make changes to any products and services herein at any time without notice. consult aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by aeroflex; nor does the purchase, lease, or use of a product or service from aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of aeroflex or of third parties. copyright 2009 aeroflex / metelics. all rights reserved. www.aeroflex.com/metelics metelics-sales@aeroflex.com iso 9001: 2008 certified companies 1n957b thru 1n992b leaded design data case: hermetically sealed, do C 35 lead material: copper clad steel lead finish: tin / lead thermal r esistance: (r ? jec ): 70 c/w maximum at l = 0.375 in thermal impedance: (z ? jx ): 12 c/w maximum polarity: cathode end is banded. mounting position: any 0.080 2.03 max dia polarity band (cathode) 0.018 / 0.022 0.457 / 0.559 dia 0.175 4.44 max 1.000 25.400 min all dimensions in inch mm 1.000 25.400 min outline drawing graphs
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