Zener diode

electronics

Also known as: avalanche diode, breakdown diode

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Last updated

July 15, 2026

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A Zener diode is a type of silicon semiconductor device, specifically a p-n junction diode, designed to operate in the reverse direction. It is engineered with a precisely controlled impurity distribution to achieve a well-defined breakdown voltage. This characteristic allows it to function as a voltage regulator, maintaining a constant voltage even when the input voltage or current fluctuates. Zener diodes are used as reference voltages in regulated power supplies and as protective devices against voltage and current surges. They can be designed to have breakdown voltages ranging from 0.1 volt to thousands of volts.123

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semiconductor device
Zener diode
) This voltage regulator is a p-n junction diode that has a precisely tailored impurity distribution to provide a well-defined breakdown voltage. It can be designed to have a breakdown voltage over a wide range from 0.1 volt to thousands of volts. The Zener…
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) This voltage regulator is a p-n junction diode that has a precisely tailored impurity distribution to provide a well-defined breakdown voltage. It can be designed to have a breakdown voltage over a wide range from 0.1 volt to thousands of volts. The Zener…
Read More