ZENER-DIODE

 ZENER-DIODE When a Zener diode is in reverse bias condition:   - It allows a small leakage current to flow initially. - As the reverse voltage increases, the diode breaks down at a specific voltage, known as the Zener voltage (Vz). - The diode starts conducting heavily, regulating the voltage across it to the Zener voltage. - This breakdown is non-destructive if the current is limited, making Zener diodes useful for voltage regulation and protection.   Key characteristics:   - Zener voltage (Vz): The voltage at which breakdown occurs. - Zener current (Iz): The current flowing through the diode during breakdown. - Zener impedance (Zz): The dynamic resistance of the diode in breakdown.   Zener diodes are designed to operate in this reverse bias breakdown region, providing a stable reference voltage.