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Backward Diode
Dec 12, 2018

Backward Diode, a variant of tunnel diode, is a tunnel diode with very small peak current. In the area of forward low voltage, the tunnel current is very small, so in fact it is similar to the forward characteristic of ordinary diodes, but under the action of reverse voltage, its current increases rapidly, and its temperature characteristic is very stable.

Because of this characteristic of the reverse diode, it is often used in small signal rectification (such as 200 mV), because it is difficult to use ordinary diode rectification for 200 mV signal. Because it has good reverse characteristics, it is called Backward Diode.