Switching Diode Operating Characteristics

Operating characteristics

The time from switching off (high resistance state) to conducting (low resistance state) of the switching diode is called the turn-on time; The time from conduction to cutoff is called reverse recovery time; The sum of the two times is called the switching time. Generally, the reverse recovery time is greater than the turn-on time, so only the reverse recovery time is given in the usage parameters of the switching diode. The switching speed of switching diodes is quite fast. For example, the reverse recovery time of silicon switching diodes is only a few nanoseconds, and even for germanium switching diodes, it is only a few hundred nanoseconds.

Switching diodes have the characteristics of fast switching speed, small size, long life, high reliability, and are widely used in switching circuits, detection circuits, high-frequency and pulse rectification circuits, and automatic control circuits in electronic equipment