Zener Diode

It is a reverse bias heavily doped P-N junction diode which is made from Silicon and Germanium semiconductor mainly. It is operated in the breakdown region where current is limited by both external resistance and power dissipation of the diode. Zener diode made from Silicon is prefer to Germanium because of its higher temperature and current capability.

Uses/application of Zener Diode:-

1. Zener diode is used as voltage regulator.

2. Zener diode is used as peak differ.

3. Zener diode is used for calibrating volt meters.

4. Zener diode is used for metal protection against damaged from accidental applications of excessive voltage.