Avalanche Breakdown and Zener Breakdown Effect Explained

In this video, the avalanche breakdown and Zener breakdown effects in the PN junction diode have been explained. By watching this video, you will learn the following topics: 0:15 Avalanche breakdown effect 4:18 Zener diode and Zener breakdown effect 7:41 Effect of temperature of Avalanche and Zener breakdown voltages The Avalanche breakdown effect: In the reverse bias condition, when the applied voltage across the PN junction diode, is more than the breakdown voltage (Vb) then suddenly a reverse saturation current shoots up. Because at the applied breakdown voltage the electric field in the depletion region will be much stronger. And due to this electric field, the minority charge carriers will get accelerated. And due to enough kinetic energy, when they collide with the silicon atoms in the crystal, they can knock out the bound electrons of the atom. Under the influence of electric field, the knocked out electrons (along with the previously accelerated electrons wh