What is Zener Voltage?

Zener voltage (Vₓ or Vz) is the reverse breakdown voltage of a Zener diode at which it starts conducting current in the reverse direction without getting damaged.

Explanation:

• A Zener diode is designed to operate in reverse bias
• When the applied reverse voltage reaches a certain value, called Zener voltage, the diode:
• Starts conducting
• Maintains a constant voltage across it

Key Features:

• Used for voltage regulation
• Keeps output voltage stable even if input varies
• Works in breakdown region safely

Example:

If a Zener diode has:

Vz = 5V

It will maintain approximately 5V across it when reverse voltage ≥ 5V

Key Takeaway:

Zener voltage is the specific reverse voltage at which a Zener diode regulates voltage by conducting safely.