Varicap
| Component type | Passive | 
|---|---|
| Invention year | 1961 | 
| First produced | 1967 | 
| First produced by | TRW Inc. | 
| Pin names | Anode and cathode | 
| Electronic symbol | |
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.