zener diode

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  • (written as Zener diode)
    A pn-junction diode with high doping on both sides of the boundary, and which utilizes Zener breakdown to provide a given maximum voltage across it. A Zener diode has a breakdown voltage of a few volts, up to about six, while an avalanche diode usually has a much higher breakdown voltage, sometime several hundred volts. Used, for instance, as a voltage-regulator diode.
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