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    Varactor Diodes

    Varactor Diode are a semiconductor diode that is is utilised in RF tuning to circuits voltage-controlled variable capacitance. This type of diode can be used in a multitude of areas where a capacitance level needs to be controlled by a voltage.

    How does a varactor diode work?

    In order to achieve a specific variance in capacitance, this type of diode works with the different region types of a capacitor known as P-type and N-type. These types can be manipulated to give out higher depletion sizes or narrowed and decreased in size, this will give you the variable capacitance you wish out of the device.

    Varactor diodes can also provide analogue control of voltage and can also alongside digitally generated voltage in microprocessors. an ADC can then be utilised to convert from analogue voltage to control the diode.

    Where are varactor diodes used?

    Varactor diodes have a range of application use such as;

    • Satellites
    • TV tuning
    • DVD devices
    • RF Tuning
    • Frequency synthesizers

    50 Products showing for Varactor Diodes

    Infineon
    Single
    -
    -
    16.5pF
    10V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Infineon
    2x Common Cathode Pair
    FM Radio Tuner
    2
    13pF
    18V
    -
    -
    -
    SOT-23
    3
    -
    -
    -
    -
    -
    Infineon
    Single
    -
    1
    6pF
    16V
    -
    -
    -
    SC79
    2
    -
    -
    -
    -
    -
    Infineon
    Single
    -
    1
    6pF
    16V
    -
    -
    -
    SC79
    2
    -
    -
    -
    -
    -
    Infineon
    Single
    Tuner
    1
    36pF
    30V
    -
    13.5
    Surface Mount
    SOD-323
    2
    1 → 28V
    1.7 x 1.25 x 1.05mm
    1.05mm
    1.7mm
    +150 °C
    Infineon
    Single
    Tuner
    1
    2.4pF
    30V
    -
    9.5
    Surface Mount
    SOD-323
    2
    -
    1.7 x 1.25 x 0.85mm
    0.85mm
    1.7mm
    +150 °C
    Infineon
    Single
    -
    1
    4.7pF
    10V
    -
    -
    -
    TSLP-2-1
    -
    -
    -
    -
    -
    -
    Infineon
    Single
    -
    -
    66pF
    12V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Infineon
    Single
    -
    -
    4.8pF
    6V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Infineon
    Single
    VCO in Mobile Communication
    1
    5.5pF
    16V
    -
    2
    Surface Mount
    SOD-323
    2
    10 V, 2 V
    1.7 x 1.25 x 0.85mm
    0.85mm
    1.7mm
    +150 °C
    Infineon
    Single
    Tuner
    1
    36pF
    30V
    -
    13.5
    Surface Mount
    SOD-323
    2
    1 → 28V
    1.7 x 1.25 x 1.05mm
    1.05mm
    1.7mm
    +150 °C
    Infineon
    Single
    VCO
    1
    1.85pF
    6V
    -
    1.8
    Surface Mount
    SC-79
    2
    1 → 3V
    1.2 x 0.8 x 0.55mm
    0.55mm
    1.2mm
    +125 °C
    Infineon
    Single
    -
    -
    28.2pF
    15V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    NXP
    Common Cathode
    Tuner
    2
    76pF
    15V
    -
    2.6
    Surface Mount
    SOT-23 (TO-236AB)
    3
    1 → 7.5V
    3 x 1.4 x 1mm
    1mm
    3mm
    +125 °C
    NXP
    Common Cathode
    Tuner
    2
    76pF
    15V
    -
    2.6
    Surface Mount
    SOT-23 (TO-236AB)
    3
    1 → 7.5V
    3 x 1.4 x 1mm
    1mm
    3mm
    +125 °C
    NXP
    Single
    Tuner, VCO
    1
    28.2pF
    6V
    -
    2.5
    Surface Mount
    SOD-523
    2
    0.2 to 2.3V
    1.25 x 0.85 x 0.65mm
    0.65mm
    1.25mm
    +85 °C
    Infineon
    Single
    Tuner
    1
    36pF
    30V
    -
    13.5
    Surface Mount
    SOD-323
    2
    1 → 28V
    1.7 x 1.25 x 1.05mm
    1.05mm
    1.7mm
    +150 °C
    Infineon
    Single
    -
    -
    28.2pF
    15V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Infineon
    Single
    -
    -
    66pF
    12V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    NXP
    Single
    Tuner, VCO
    1
    28.2pF
    6V
    -
    2.5
    Surface Mount
    SOD-523
    2
    0.2 → 2.3V
    1.25 x 0.85 x 0.65mm
    0.65mm
    1.25mm
    +85 °C
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