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

    EPCOS
    47V
    30V
    38V
    93V
    2.5A
    2J
    Metal
    Standard
    9mm
    250A
    1.2nF
    -
    -
    3.7mm
    9 (Dia.) x 3.7mm
    -
    EPCOS
    390V
    250V
    320V
    650V
    25A
    38J
    Metal
    Standard
    12mm
    2500A
    245pF
    -
    -
    4.8mm
    12 (Dia.) x 4.8mm
    -
    Bourns
    22V
    14V
    18V
    38V
    1A
    -
    Metal
    ZV
    -
    -
    195pF
    -
    -
    -
    -
    0603 (1608M)
    Bourns
    240V
    150V
    150V
    395V
    10A
    18.5J
    Metal
    DV
    -
    1200A
    220pF
    8mm
    -
    2mm
    -
    4032
    Panasonic
    120V
    75V
    100V
    200V
    100A
    85J
    ZNR
    V
    21.5mm
    10000A
    5.5nF
    44.5mm
    -
    5.3mm
    21.5 (Dia.) x 5.3mm
    -
    EPCOS
    22V
    14V
    18V
    43V
    10A
    4J
    Metal
    Standard
    15.5mm
    1000A
    9.95nF
    43.5mm
    1.5mm
    4.2mm
    15.5 (Dia.) x 4.2mm
    -
    EPCOS
    1800V
    1100V
    1465V
    2970V
    500A
    3000J
    Metal
    HighE
    60mm
    70000A
    1.6nF
    100mm
    100mm
    24mm
    100 x 100 x 24mm
    SIOV
    Panasonic
    68V
    40V
    65V
    135V
    10A
    20J
    ZNR
    V
    15.5mm
    2000A
    5.5nF
    38.5mm
    -
    5.3mm
    15.5 (Dia.) x 5.3mm
    -
    Panasonic
    680V
    420V
    560V
    1120V
    50A
    190J
    ZNR
    V
    14mm
    5000A
    290pF
    38mm
    -
    7.8mm
    14 x 7.8mm
    -
    EPCOS
    910V
    550V
    745V
    1500V
    300A
    960J
    Metal
    HighE
    40mm
    40000A
    1.4nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    Wurth Elektronik
    39V
    25V
    31V
    77V
    5A
    4.7J
    Metal
    WE-VD
    12.5mm
    500A
    3.6nF
    -
    -
    5.1mm
    12.5 (Dia.) x 5.1mm
    -
    EPCOS
    18V
    11V
    14V
    36V
    5A
    1.7J
    Metal
    Standard
    12mm
    500A
    6.25nF
    -
    -
    4mm
    12 (Dia.) x 4mm
    -
    EPCOS
    150V
    95V
    125V
    250V
    10A
    7.6J
    Metal
    Standard
    9mm
    1200A
    260pF
    -
    -
    3.4mm
    9 (Dia.) x 3.4mm
    -
    Panasonic
    430V
    275V
    350V
    710V
    50A
    155J
    ZNR
    V
    15.5mm
    6000A
    450pF
    38.5mm
    -
    6mm
    15.5 (Dia.) x 6mm
    -
    Bourns
    115 Vrms, 150 V dc
    115V
    150V
    320V
    6000A
    60J
    Metal
    GMOV
    16.5mm
    -
    4pF
    -
    -
    8mm
    16.5 (Dia.) x 8mm
    -
    Bourns
    230 Vrms, 300 V dc
    230V
    300V
    620V
    6000A
    130J
    Metal
    GMOV
    16.5mm
    -
    4pF
    -
    -
    8mm
    16.5 (Dia.) x 8mm
    -
    EPCOS
    35V
    35V
    45V
    110V
    2.5A
    2.5J
    Metal
    Standard
    9mm
    250A
    1.05nF
    36mm
    -
    3.9mm
    9 (Dia.) x 3.9mm
    -
    Bourns
    300 Vrms, 385 V dc
    300V
    385V
    800V
    10000A
    350J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    EPCOS
    120V
    75V
    100V
    220V
    300A
    190J
    Metal
    HighE
    40mm
    40000A
    11nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    EPCOS
    360V
    230V
    300V
    595V
    300A
    460J
    Metal
    HighE
    40mm
    40000A
    3.2nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
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