Varistors | Metal Oxide Varistors | MOV | RS
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    Varistors

    Varistors are devices that provide excellent transient voltage suppression and are a type of non-linear device that feature similar characteristics to Zener diodes. They are used to protect vulnerable electronic circuits and components from overvoltage conditions that can cause damage. Any potentially destructive overvoltage energy is dissipated as heat.

    Types of Varistor

    Metal oxide varistors

    Metal Oxide Varistors (MOVs) are typically constructed from zinc oxide and combined with small additions of other metal oxides such as cobalt, manganese or bismuth. These materials are sintered into ceramic casings during manufacture. Although MOVs are available in different formats, they are most commonly radial leaded discs.

    Applications:

    • Suppression of lightning and other high levels of transient energy
    • Low voltage power supplies in DC circuits
    • Low voltage power supply in automotive applications
    • Protection from internal transients within capacitor discharges, relay switching and inductive load switching

    Ceramic transient voltage

    Ceramic transient voltage suppressors are a type of variable resistor that are designed to respond to momentary conditions of overvoltage. They are more effective than other types of overvoltage protection components, such as varistors or gas discharge tubes, as they respond faster to the changing conditions. This particular type of transient voltage suppressor is made from ceramic.

    Applications:

    Ceramic transient voltage suppressors are used as part of electronic circuits to protect data or transmission lines. They work to protect against both unidirectional and bidirectional electrostatic discharge. This kind of sudden voltage spike can be caused either internally or externally, for example in the form of lightning or motor arcing.

    2271 Products showing for Varistors

    Panasonic
    220V
    140V
    180V
    360V
    10A
    19J
    ZNR
    V
    8.5mm
    1750A
    190pF
    31.5mm
    -
    4.5mm
    8.5 (Dia.) x 4.5mm
    -
    EPCOS
    270V
    175V
    225V
    455V
    100A
    98J
    Metal
    Standard
    21.5mm
    8000A
    1nF
    -
    -
    5mm
    21.5 (Dia.) x 5mm
    -
    Littelfuse
    24.2V
    14V
    18V
    43V
    5A
    2J
    Metal
    ZA
    10mm
    500A
    4.5nF
    36mm
    -
    5mm
    12.5 (Dia.) x 16mm
    -
    EPCOS
    180V
    115V
    150V
    300V
    100A
    60J
    Metal
    Standard
    21.5mm
    6500A
    1.52nF
    -
    -
    4.7mm
    21.5 (Dia.) x 4.7mm
    -
    Bourns
    320V
    320V
    415V
    875V
    100A
    -
    -
    IsoMOV
    -
    -
    40pF
    -
    -
    -
    -
    Bulk
    Panasonic
    470V
    300V
    385V
    775V
    25A
    85J
    ZNR
    V
    11.5mm
    3500A
    230pF
    34.5mm
    -
    6.2mm
    11.5 (Dia.) x 6.2mm
    -
    EPCOS
    82V
    50V
    65V
    135V
    25A
    8.4J
    Metal
    Standard
    12mm
    2500A
    950pF
    -
    -
    3.9mm
    12 (Dia.) x 3.9mm
    -
    Panasonic
    470V
    300V
    385V
    775V
    25A
    85J
    ZNR
    V
    11.5mm
    3500A
    230pF
    34.5mm
    -
    6.2mm
    11.5 (Dia.) x 6.2mm
    -
    Bourns
    250V
    250V
    320V
    675V
    50A
    -
    -
    IsoMOV
    -
    -
    30pF
    -
    -
    -
    -
    Bulk
    Panasonic
    18V
    11V
    14V
    36V
    10A
    5.2J
    ZNR
    V
    15.5mm
    2000A
    25nF
    34.5mm
    -
    4.6mm
    15.5 (Dia.) x 4.6mm
    -
    EPCOS
    270V
    175V
    225V
    455V
    50A
    46J
    Metal
    Standard
    -
    4500A
    670pF
    15.5mm
    18.5mm
    4.6mm
    15.5 x 4.6 x 18.5mm
    -
    Panasonic
    18V
    11V
    14V
    40V
    1A
    0.6J
    ZNR
    V
    7mm
    250A
    1.6nF
    30mm
    -
    4.5mm
    7 (Dia.) x 4.5mm
    -
    EPCOS
    47V
    30V
    38V
    30V
    10A
    9J
    Metal
    Standard
    15.5mm
    1000A
    4.95nF
    -
    -
    4.4mm
    15.5 (Dia.) x 4.4mm
    -
    EPCOS
    910V
    550V
    745V
    1500V
    50A
    120J
    Metal
    Standard
    -
    4500A
    215pF
    15.5mm
    19mm
    7.2mm
    15.5 x 7.2 x 19mm
    -
    EPCOS
    1100V
    680V
    895V
    1815V
    50A
    140J
    Metal
    Standard
    15.5mm
    4500A
    180pF
    -
    -
    8mm
    15.5 (Dia.) x 8mm
    -
    Panasonic
    150V
    95V
    125V
    250V
    10A
    13J
    ZNR
    V
    8.5mm
    1750A
    500pF
    31.5mm
    -
    4.8mm
    8.5 (Dia.) x 4.8mm
    -
    Bourns
    250 Vrms, 320 V dc
    250V
    320V
    675V
    10000A
    275J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    EPCOS
    680V
    420V
    560V
    1120V
    100A
    -
    -
    AdvancedD
    -
    -
    550pF
    -
    -
    -
    -
    20 mm
    Panasonic
    47V
    30V
    38V
    93V
    10A
    14J
    ZNR
    V
    15.5mm
    2000A
    6.75nF
    38.5mm
    -
    5mm
    15.5 (Dia.) x 5mm
    -
    EPCOS
    220V
    140V
    180V
    360V
    100A
    -
    -
    AdvancedD
    -
    -
    1.7nF
    -
    -
    -
    -
    20 mm
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