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 …

Mar 25, 2024 · What is a Varactor Diode? A Varactor Diode (also known with the names Varicap Diode, Varactor Diode, Tuning Diode) is a p-n junction diode which acts as a variable …

A Varactor diode is a PN junction diode whose capacitance varies with the change in applied reverse voltage. The internal capacitance is actually the junction capacitance that depends on …

Jul 23, 2025 · A varactor diode, also known as a Varicap or volt-cap, is a type of PN junction diode primarily utilized in the reverse-biased mode. It is a device whose capacitance varies …

A varactor diode is a specially manufactured P–N junction with a variable concentration of impurities in its P-type and N-type materials. In a conventional silicon diode, doping impurities …

Oct 22, 2024 · Varactor diodes are two-terminal electronic components that are designed to provide voltage-controlled capacitance when operated under reverse bias. These simple …

Their role is essential in frequency tuning, modulation, and signal control. This article explores how varactor diodes operate, where they’re applied, how to select and replace them, and the …