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.

    2266 Products showing for Varistors

    EPCOS
    680V
    420V
    560V
    1120V
    300A
    910J
    Metal
    HighE
    40mm
    40000A
    1.8nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    100A
    173J
    Metal
    Standard
    21.5mm
    8000A
    780pF
    -
    -
    5.6mm
    21.5 (Dia.) x 5.6mm
    -
    Littelfuse
    354 → 429V
    250V
    330V
    650V
    10A
    7J
    Metal
    CH
    -
    250A
    60pF
    8.51mm
    5.26mm
    2.03mm
    8.51 x 5.26 x 2.03mm
    3220 (8552M)
    Bourns
    380V
    385V
    505V
    1000V
    100A
    -
    -
    IsoMOV
    -
    -
    40pF
    -
    -
    -
    -
    Bulk
    Panasonic
    330V
    210V
    270V
    545V
    10A
    8J
    ZNR
    VF
    -
    300A
    -
    8mm
    6mm
    3.2mm
    -
    -
    EPCOS
    510V
    320V
    420V
    840V
    25A
    72J
    Metal
    AdvanceD-MP
    12mm
    3500A
    170pF
    -
    -
    6.3mm
    12 (Dia.) x 6.3mm
    -
    EPCOS
    390V
    250V
    320V
    650V
    25A
    38J
    Metal
    Standard
    12mm
    2500A
    245pF
    -
    -
    4.8mm
    12 (Dia.) x 4.8mm
    -
    Littelfuse
    429V
    250V
    330V
    650V
    25A
    40J
    Metal
    LA
    12.5mm
    2500A
    220pF
    36mm
    -
    5.6mm
    12.5 (Dia.) x 5.6mm
    -
    Littelfuse
    19.2 → 26V
    14V
    18V
    43V
    20A
    100J
    Metal
    ZA
    23mm
    2000A
    18nF
    46.5mm
    -
    5mm
    23 (Dia.) x 5mm
    -
    Panasonic
    330V
    210V
    270V
    545V
    100A
    228J
    ZNR
    V
    21.5mm
    10000A
    1.1nF
    44.5mm
    -
    5.9mm
    21.5 (Dia.) x 5.9mm
    -
    Bourns
    275 Vrms, 350 V dc
    275V
    350V
    730V
    10000A
    305J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    Panasonic
    620V
    385V
    505V
    1025V
    50A
    190J
    ZNR
    V
    14mm
    5000A
    300pF
    38mm
    -
    7.5mm
    14 x 7.5mm
    -
    Panasonic
    150V
    95V
    125V
    250V
    50A
    53J
    ZNR
    V
    15.5mm
    6000A
    2.2nF
    38.5mm
    -
    5.2mm
    15.5 (Dia.) x 5.2mm
    -
    Bourns
    24V
    14V
    16V
    40V
    10A
    -
    Metal
    AVHT
    -
    -
    10nF
    -
    -
    -
    -
    2220 (5650M)
    EPCOS
    180V
    115V
    150V
    300V
    50A
    30J
    Metal
    StandarD
    15.5mm
    -
    1nF
    -
    -
    4.2mm
    15.5 (Dia.) x 4.2mm
    -
    Littelfuse
    389 → 473V
    275V
    369V
    710V
    10A
    8J
    Metal
    CH
    -
    250A
    50pF
    8.51mm
    5.26mm
    2.03mm
    8.51 x 5.26 x 2.03mm
    3220 (8552M)
    Panasonic
    68V
    40V
    65V
    135V
    10A
    20J
    ZNR
    V
    15.5mm
    2000A
    5.5nF
    38.5mm
    -
    5.3mm
    15.5 (Dia.) x 5.3mm
    -
    Bourns
    250V
    250V
    320V
    675V
    50A
    -
    -
    IsoMOV
    -
    -
    30pF
    -
    -
    -
    -
    Bulk
    Littelfuse
    565V
    320V
    420V
    850V
    50A
    80J
    Metal
    LA
    17mm
    4500A
    380pF
    40mm
    -
    5.6mm
    17 (Dia.) x 5.6mm
    -
    EPCOS
    27V
    17V
    22V
    53V
    5A
    2.5J
    Metal
    StandarD
    12mm
    -
    4.35nF
    -
    -
    4.4mm
    12 (Dia.) x 4.4mm
    -
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