figure 1 lead ma terial: copper clad steel lead finish: t in / lead thermal resist ance: ( r o jec ): 80 ?c/w maximum at l = .375 inch thermal impedance: ( z o jx ): 15 ?c/w maximum polarity : diode to be operated with the banded (cathode) end positive. electrical characteristics @ 25c c d . x a m r e n e z l a n i m o n i d c type zener test maximum zener impedance zener max. reverse t n e r r u c t n e r r u c e g a t l o v r e b m u n leakage current v z @ 1 zt 1 zt z zt @ 1 zt z zk @ 1 zk=1ma 1 zm l r @ v r ) 2 e t o n ( ) 3 e t o n ( ) 1 e t o n ( vol ts ma ohms ohms ma a vol ts 1n3821 3.3 76 10 400 276 100 1 1n3821a 3.3 76 10 400 276 100 1 1n3822 3.6 69 10 400 252 75 1 1n3822a 3.6 69 10 400 252 75 1 1n3823 3.9 64 9 400 238 25 1 1n3823a 3.9 64 9 400 238 25 1 1n3824 4.3 58 9 400 213 5 1 1n3824a 4.3 58 9 400 213 5 1 1n3825 4.7 53 8 500 194 5 1 1n3825a 4.7 53 8 500 194 5 1 1n3826 5.1 49 7 550 178 3 1 1n3826a 5.1 49 7 550 178 3 1 1n3827 5.6 45 5 600 162 3 2 1n3827a 5.6 45 5 600 162 3 2 1n3828 6.2 41 2 700 146 3 3 1n3828a 6.2 41 2 700 146 3 3 maximum ra tings operating t emperature: -65c to +175c storage t emperature: -65c to +175c dc power dissipation: 1 watt @t l = 95c power derating: 12.5 mw / c above t l = 95c forward v oltage @ 200ma = 1.2 volts maximum note 1 no suf fix = + 10% tolerance on nominal zener voltage, suf fix ?a? signifies + 5%, suf fix ?c? signifies + 2%, suf fix ?d? signifies + 1%. note 2 zener impedance is derived by superimposing on 1 zt a 60hz rms a.c. current equal to 10% of 1 zt . note 3 zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25c + 3c. ? 1n3821a-1 thru 1n3828a-1 available in jan, jantx and jantxv per mil-prf-19500/1 15 ? 1 w a tt zener diode ? double plug construction ? met allurgicall y bonded 1n3821a thru 1n3828a and 1n3821a-1 thru 1n3828a-1
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