What is the definition of avalanche breakdown voltage?

The voltage at which this occurs is the breakdown voltage. Avalanche breakdown occurs when a charged particle is accelerated to a high enough velocity (and thus energy) to ionize an atom in the medium, creating a new particle that will accelerate and repeat the process. read more

In Zener breakdown, the breakdown voltage depends on the temperature of P-N junction.The breakdown voltage decreases with increase in the junction temperature. Avalanche Breakdown The avalanche breakdown is observed in the Zener Diodes having V z having than 8 V. read more

Avalanche diodes (commonly encountered as high voltage Zener diodes) are constructed to break down at a uniform voltage and to avoid current crowding during breakdown. These diodes can indefinitely sustain a moderate level of current during breakdown. The voltage at which the breakdown occurs is called the breakdown voltage. read more