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  digitron semiconductors 144 market street kenilworth nj 07033 usa phone +1.908.245-7200 1N821 ? 1n829a temperature compensated do-35 case zener reference diode 6.2 & 6.55 volt maximum ratings 1N821 ? 1n829a operating and storage temperature -65 to +175c dc power dissipation 500mw @ 25c derating solder temperatures 4 mw/c above 25c electrical characteristics part number zener voltage (note 1 and 4) v z @ l zt zener test current l zt maximum zener impedance (note 3 and 4) z zt voltage temperature stability ( v zt max) -55c to +100c (note 3 and 4) effective temperature coefficient vz 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 ? double anode; electrical specifications apply under both bias polarities. notes: 1. when ordering devices with tighter tolerances than specified, use a nominal vz voltage of 6.2 v. 2. measured by superimposing 0.75m a ac rms on 7.5ma dc @ 25c. 3. the maximum allowable change observed over the entire te mperature range i.e., the diode voltage will not exceed the specified mv change at any discrete temperature between the established limits. 4. voltage measurements to be performed 15 seconds after application of dc current. mechanical characteristics case: hermetically sealed glass, do-35 marking: body painted, alpha numeric polarity: cathode band dimensions inches millimeters min max min max bd - 0.080 - 2.030 bl - 0.175 - 4.440 ld 0.018 0.022 0.457 0.559 ll 1.000 - 25.400 - sales@digitroncorp.com fax +1.908.245-0555 www.digitroncorp.com rev. 20120802
digitron semiconductors 144 market street kenilworth nj 07033 usa phone +1.908.245-7200 power derating curve typical change of temperature coeffici ent with change in operating current typical change of zener voltage wi th change in operating current this curve illustrates the change of diode voltage arising from the effect of impedance. it is in effect an exploded view of t he zener operating region of the i-v characteristic. this curve can also be used to estimate total voltage regulation under conditions of both varying temperature and current. available non-rohs (standard) or rohs compliant (add pbf suffix). available as ?hr? (high reliability) screened per mil-prf- 19500, jantx level. add ?hr? suffix to base part number. sales@digitroncorp.com fax +1.908.245-0555 www.digitroncorp.com rev. 20120802


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