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| UMZ12N diodes zener diode UMZ12N z applications constant voltage control noise suppression on single line z features 1) small surface mounting type. (umd3) 2) multiple diodes with common anode configuration. 3) high reliability. z construction silicon epitaxial planar z z z z external dimensions (units : mm) 2.1?.1 1.25?.1 0.3?.1 2.0?.2 1.3?.1 0.65 0.65 6 v 0 0.1 0.15?.05 0.9?.1 0.3 0.6 0.1min. rohm : umd3 eiaj : sc - 70 jedec : sot - 323 z circuit z z z z absolute maximum ratings (ta=25 c) parameter symbol limits unit tj tstg mw ?c ?c 200 150 ? 55 + 150 power dissipation ? junction temperature ? total of 2 elements storage temperature p z z z z electrical characteristics (ta=25 c) parameter symbol min. max. unit conditions v z 11.0 13.0 v i z =5ma i r ? 0.10 av r =9v z z ? 30 ? i z =5ma z zk ? 80 ? i z =0.5ma zener voltage reverse current operating resistance rising operating resistance
UMZ12N diodes z z z z electrical characteristic curves (ta=25 c) 0.01 ta= ? 25 ? c ta=25 ? c ta=75 ? c ta=125 ? c 10 1 0.1 zener current : i z ( ma) zener voltage : v z ( v) 0 11.0 12.0 13.0 14.0 15.0 fig.1 zener voltage characteristics ta=25 ? c dynamic impeadance : z z ( ? ) 100 10 1 zener current : i z ( ma) 0.1 10 1 fig.2 operating resistance zener current characteristics 1.0 0.9 0.3 0.4 0.5 0.6 0.7 0.8 0.01 ta= ? 25 ? c ta=25 ? c ta=75 ? c ta=125 ? c forward current : i f ( ma) forward voltage : v f ( v) 0.1 1 10 0 fig.3 forward characteristics 0 0 25 50 100 150 100 200 300 ambient temperature : ta ( ? c) power dissipation : pd (mw) fig.4 derating curve |
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