Avalanche Diodes

An avalanche diode is a type of diode that is designed to operate in avalanche breakdown mode. In avalanche breakdown, a high electric field within the diode causes free electrons to collide with atoms in the diode's crystal lattice, creating additional free electrons and holes. This process, known as impact ionization, generates a large current surge that can be used to switch high-power devices, such as thyristors and triacs. Avalanche diodes are commonly used in high-voltage, high-power switching applications, such as power supplies, inverters, and motor drives. They are also used in radio frequency (RF) circuits, where their fast switching speed makes them well suited for high-frequency switching and modulation.