6 lake street, lawrence, massachusetts 01841 phone (978) 620-2600 fax (978) 689-0803 website: http://www.microsemi.com 15 jedec zener zener maximum voltage effective type voltage test zener temperature temperature number current impedance stability coefficient v z @ i zt i zt (note 1) 3v zt z zt -55 to +100 (note 2) volts ma ohms mv % / c 1n821 5.9?6.5 7.5 15 96 0.01 1n821a 5.9?6.5 7.5 10 96 0.01 1n822 ? 5.9?6.5 7.5 15 96 0.01 1n823 5.9?6.5 7.5 15 48 0.005 1n823a 5.9?6.5 7.5 10 48 0.005 1n824 ? 5.9?6.5 7.5 15 48 0.005 1n825 5.9?6.5 7.5 15 19 0.002 1n825a 5.9?6.5 7.5 10 19 0.002 1n826 6.2?6.9 7.5 15 20 0.002 1n827 5.9?6.5 7.5 15 9 0.001 1n827a 5.9?6.5 7.5 10 9 0.001 1n828 6.2?6.9 7.5 15 10 0.001 1n829 5.9?6.5 7.5 15 5 0.0005 1n829a 5.9?6.5 7.5 10 5 0.0005 maximum ratings operating temperature: -65c to +175c storage temperature: -65c to +175c dc power dissipation: 500mw @ +50c power derating: 4 mw / c above +50c reverse leakage current l r = 2 a @ 25c & v r = 3 vdc electrical characteristics @ 25c, unless otherwise speci?ed. figure 1 design data case: hermetically sealed glass case. do ? 35 outline. lead material: copper clad steel. lead finish: tin / lead polarity: diode to be operated with the banded (cathode) end positive. mounting position: any. ? double anode: electrical speci?cations apply under both bias polarities. note 1 zener impedance is derived by superimposing on l zt a 60hz rms a.c. current equal to 10% of l zt . note 2 the maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the speci?ed mv at any discrete temperature between the established limits, per jedec standard no. 5. ? 1n821-1,1n823-1,1n825-1,1n827-1 and 1n829-1 available in jan , jantx, jantxv and jans per mil-prf-19500/159 ? temperature compensated zener reference diodes ? metallurgically bonded ? double plug construction 1n821 thru 1n829a and 1n821-1 thru 1n829-1
16 1n821 thru 1n829a including -1 versions 25 50 100 150 175 t l , lead temperature (c) 3/8? from body figure 2 power derating curve 600 500 400 300 200 100 0 pd, rated power dissipation (mw) 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 operating current l zt (ma) figure 4 typical change of temperature coefficient with change in operating current +.0010 +.0005 0 -.0005 -.0010 change in temperature coefficient ( %/c) 5678910 operating current l zt (ma) figure 3 zener impedance vs. operating current 500 100 50 10 5 1 zener impedance z zt (ohms)
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