12v 1 Watt Zener Diode

Nominal Zener Voltage (VZ): 12V
Power dissipation (PZ): 1300mW (practically 500mW)
Zener regulator current (IZm): 380mA
22 watt Zener diode

A Zener diode is one of the different types of diode, used for entirely different purposes than common diodes. They are mainly used in protection circuits or in short crude voltage regulators. Â This diode decides (limits) the amount of current that can flow through the Zener diode. Also, This Zener diode is protected from high current. If this resistor is not used the diode will be damaged due to high current.