Varicap

In electronics, a varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent capacitance of a reverse-biased p–n junction.

This article is about a type of diode. For a purely variable capacitor, see Variable capacitor.
Varicap diode
Internal structure of a varicap
TypePassive
Invented1961
Pin configuration anode and cathode
Electronic symbol
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