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

    Littelfuse
    277V
    320V
    -
    -
    -
    -
    Metal
    LSP10
    -
    10000A
    -
    64mm
    48mm
    30mm
    64 x 48 x 30mm
    -
    Littelfuse
    670 → 790V
    480V
    640V
    1160V
    100A
    180J
    Metal
    LA
    23mm
    6500A
    550pF
    40.5mm
    -
    7.3mm
    23 (Dia.) x 7.3mm
    -
    Littelfuse
    825V
    480V
    640V
    1240V
    50A
    105J
    Metal
    LA
    17mm
    4500A
    270pF
    40mm
    -
    7.3mm
    17 (Dia.) x 7.3mm
    -
    EPCOS
    430V
    275V
    350V
    510V
    100A
    -
    -
    AdvancedD
    -
    -
    850pF
    -
    -
    -
    -
    20 mm
    Bourns
    50 Vrms, 65 V dc
    50V
    65V
    150V
    10000A
    56J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    Panasonic
    470V
    300V
    385V
    775V
    10A
    32J
    ZNR
    V
    7mm
    1200A
    100pF
    30mm
    -
    6.3mm
    7 x 6.3mm
    -
    Bourns
    18V
    11V
    14V
    33V
    1A
    -
    Metal
    ZV
    -
    -
    210pF
    -
    -
    -
    -
    0603 (1608M)
    Panasonic
    1000V
    625V
    825V
    1650V
    50A
    280J
    ZNR
    V
    16mm
    5000A
    230pF
    38.5mm
    -
    9.1mm
    16 (Dia.) x 9.1mm
    -
    Bourns
    5V
    -
    5V dc
    25V
    -
    -
    -
    MLU
    -
    -
    0.05pF
    -
    -
    -
    -
    0603 (1608M)
    Panasonic
    330V
    210V
    270V
    545V
    10A
    8J
    ZNR
    VF
    -
    300A
    -
    8mm
    6mm
    3.2mm
    -
    -
    EPCOS
    180V
    115V
    150V
    300V
    50A
    30J
    Metal
    StandarD
    15.5mm
    -
    1nF
    -
    -
    4.2mm
    15.5 (Dia.) x 4.2mm
    -
    EPCOS
    47V
    30V
    38V
    93V
    5A
    4.4J
    Metal
    Standard
    12mm
    500A
    2.75nF
    -
    -
    4.4mm
    12 (Dia.) x 4.4mm
    -
    KYOCERA AVX
    8.5V
    4V
    5.6V
    18V
    1A
    0.05J
    Ceramic
    VC
    -
    20A
    175pF
    1mm
    0.5mm
    -
    1 x 0.5 x 0.6mm
    0402 (1005M)
    KYOCERA AVX
    8.5V
    4V
    5.6V
    18V
    1A
    0.4J
    Ceramic
    VC
    -
    150A
    3nF
    3.2mm
    1.6mm
    -
    3.2 x 1.6 x 1.02mm
    1206 (3216M)
    Littelfuse
    43V
    25V
    31V
    79V
    2.5A
    1.2J
    Metal
    ZA
    9mm
    250A
    1.35nF
    32mm
    -
    5mm
    9 (Dia.) x 5mm
    -
    Littelfuse
    354 → 413V
    250V
    330V
    620V
    100A
    130J
    Metal
    LA
    23mm
    6500A
    1nF
    40.5mm
    -
    5.6mm
    23 (Dia.) x 5.6mm
    -
    EPCOS
    430V
    275V
    350V
    710V
    5A
    8.6J
    Metal
    Standard
    7mm
    400A
    60pF
    -
    -
    4.3mm
    7 (Dia.) x 4.3mm
    -
    Bourns
    380V
    385V
    505V
    1000V
    200A
    -
    -
    IsoMOV
    -
    -
    50pF
    -
    -
    -
    -
    Bulk
    EPCOS
    270V
    175V
    225V
    455V
    25A
    28J
    Metal
    Standard
    12mm
    2500A
    380pF
    -
    -
    4.6mm
    12 (Dia.) x 4.6mm
    -
    Wurth Elektronik
    70V
    40V
    56V
    120V
    10A
    1J
    ZnO
    WE-VS
    -
    200A
    180pF
    3.2mm
    1.6mm
    -
    -
    1206 (3216M)
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