1. Tardigrade
  2. Question
  3. Physics
  4. Assertion: Zener diode works on principle of breakdown voltage. Reason :Current increases suddenly after breakdown voltage.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion : Zener diode works on principle of breakdown voltage.
Reason :Current increases suddenly after breakdown voltage.

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Zener diodes are specially designed junction diodes, which can operate in the reverse breakdown voltage region continuously without being damaged. This breakdown voltage occur when reverse bias is increased beyond a particular value, the reverse current increases suddenly on increasing the reverse bias even slightly. In normal diode after this breakdown voltage, low power rating will get destroyed but Zener diode is specially designed to work in this region of biasing.