Editing Varicap (section)

{{Short description|Type of diode}}
{{About|a type of diode|a purely variable capacitor|Variable capacitor}}
{{Infobox electronic component
| name              = Varicap diode
| image             = Varicap Diodes.jpg
| type              = [[Passivity (engineering)|Passive]]
| invention_Year    = 1961
| first_produced    = 1967
| first_produced_by = [[TRW Inc.]]
| pins              = [[Anode]] and [[cathode]]
| symbol            = [[File:Varicap symbol.svg|150px]]
}}

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]].<ref>{{cite book|last1=Sedra|first1=Adel|last2=Smith|first2=Kenneth|author-link1=Adel Sedra|author-link2=Kenneth C. Smith|title=Microelectronic circuits|date=2010|publisher=[[Oxford University Press]]|location=New York|isbn=9780195323030|page=214|edition=6th}}</ref>