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
    470V
    300V
    385V
    775V
    10A
    23J
    Metal
    Standard
    9mm
    1200A
    100pF
    -
    -
    4.5mm
    9 (Dia.) x 4.5mm
    -
    Littelfuse
    1000V
    575V
    730V
    1500V
    50A
    120J
    Metal
    LA
    17mm
    4500A
    220pF
    40mm
    -
    8.3mm
    17 (Dia.) x 8.3mm
    -
    Littelfuse
    19.2 → 26V
    14V
    18V
    43V
    20A
    100J
    Metal
    ZA
    23mm
    2000A
    18nF
    46.5mm
    -
    5mm
    23 (Dia.) x 5mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    100A
    173J
    Metal
    Standard
    21.5mm
    8000A
    780pF
    -
    -
    5.6mm
    21.5 (Dia.) x 5.6mm
    -
    Wurth Elektronik
    510V
    320V
    418V
    842V
    100A
    382J
    Metal
    WE-VD
    23mm
    10000A
    760pF
    -
    -
    -
    -
    -
    Panasonic
    470V
    300V
    385V
    775V
    50A
    106J
    ZNR
    E
    -
    4500A
    320pF
    35mm
    -
    6.8mm
    11.5 (Dia.) x 6.8mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    100A
    173J
    Metal
    Standard
    21.5mm
    8000A
    780pF
    -
    -
    5.6mm
    21.5 (Dia.) x 5.6mm
    -
    EPCOS
    27V
    17V
    22V
    53V
    5A
    2.5J
    Metal
    StandarD
    12mm
    -
    4.35nF
    -
    -
    4.4mm
    12 (Dia.) x 4.4mm
    -
    EPCOS
    39V
    25V
    31V
    77V
    1A
    0.7J
    Metal
    Standard
    7mm
    100A
    850pF
    -
    -
    3.6mm
    7 (Dia.) x 3.6mm
    -
    Bourns
    24V
    14V
    16V
    40V
    10A
    -
    Metal
    AVHT
    -
    -
    10nF
    -
    -
    -
    -
    2220 (5650M)
    EPCOS
    820V
    510V
    670V
    1355V
    100A
    190J
    Metal
    Standard
    -
    6500A
    460pF
    21.5mm
    26mm
    7.1mm
    21.5 x 7.1 x 26mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    25A
    -
    -
    AdvancedD
    -
    -
    200pF
    -
    -
    -
    -
    10 mm
    Vishay
    430V
    275V
    350V
    710V
    25A
    63J
    Metal
    NTCLE100E3
    13.5mm
    2500A
    270pF
    32mm
    -
    5.4mm
    13.5 (Dia.) x 5.4mm
    -
    Littelfuse
    38 → 49V
    26V
    33V
    75V
    1A
    0.8J
    Metal
    ML
    -
    180A
    500pF
    3.2mm
    1.6mm
    1.8mm
    3.2 x 1.6 x 1.8mm
    1206 (3216M)
    EPCOS
    240V
    150V
    200V
    395V
    50A
    40J
    Metal
    Standard
    15.5mm
    4500A
    750pF
    -
    -
    4.4mm
    15.5 (Dia.) x 4.4mm
    -
    Bourns
    380V
    385V
    505V
    1000V
    100A
    -
    -
    IsoMOV
    -
    -
    40pF
    -
    -
    -
    -
    Bulk
    Panasonic
    33V
    20V
    26V
    65V
    10A
    9.5J
    ZNR
    V
    15.5mm
    2000A
    12.2nF
    38.5mm
    -
    5mm
    15.5 (Dia.) x 5mm
    -
    EPCOS
    430V
    275V
    350V
    710V
    50A
    71J
    Metal
    Standard
    15.5mm
    4500A
    440pF
    -
    -
    5mm
    15.5 (Dia.) x 5mm
    -
    EPCOS
    620V
    385V
    505V
    1025V
    10A
    28J
    Metal
    Standard
    -
    1200A
    85pF
    9mm
    11.5mm
    5.2mm
    9 x 5.2 x 11.5mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    100A
    250J
    Metal
    Advanced
    20mm
    10000A
    780pF
    21.5mm
    25.5mm
    6.1mm
    21.5 x 6.1 x 25.5mm
    -
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