Compare avalanche and zener breakdown.

Compare avalanche and zener breakdown.
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1 Answer

Answer :

Sr. No. Avalanche breakdown
Zener breakdown
1 PN junction are lightly doped in avalanche breakdown
PN junction are heavily doped in zener breakdown
2 The avalanche breakdown occurs when carriers in the transition region are accelerated by the electric field to energies sufficient to create mobile or free electron-hole pairs via collisions with bound electrons
In the Zener effect or Zener breakdown , the electric field enables tunneling of electrons from the valence to the conduction band of a semiconductor in a reverse biased p-n diode
3 Charge carriers acquire energy from the applied potential 
Zener current is independent of applied voltage
4 Electron hole pairs are generated 
Large number of holes and electrons are produced 
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