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

    BC Components
    390V
    250V
    320V
    650V
    10A
    33J
    ZnO Ceramic
    VDR
    9mm
    1200A
    160pF
    35mm
    0.6mm
    4.9mm
    9 (Dia.) x 4.9mm
    -
    Roxburgh EMC
    240V
    275V
    350V
    -
    -
    264J
    Metal
    DVS
    -
    6500A
    -
    75mm
    52.5mm
    12.5mm
    75 x 52.5 x 12.5mm
    -
    Panasonic
    470V
    300V
    385V
    775V
    50A
    175J
    ZNR
    V
    15.5mm
    6000A
    400pF
    38.5mm
    -
    6.2mm
    15.5 (Dia.) x 6.2mm
    -
    Bourns
    250 Vrms, 320 V dc
    250V
    320V
    675V
    10000A
    275J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    EPCOS
    240V
    150V
    200V
    395V
    5A
    4.9J
    Metal
    StandarD
    7mm
    -
    115pF
    -
    -
    3.8mm
    7 (Dia.) x 3.8mm
    -
    EPCOS
    910V
    550V
    745V
    1500V
    300A
    960J
    Metal
    HighE
    40mm
    40000A
    1.4nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    Panasonic
    220V
    140V
    180V
    360V
    10A
    19J
    ZNR
    V
    8.5mm
    1750A
    190pF
    31.5mm
    -
    4.5mm
    8.5 (Dia.) x 4.5mm
    -
    Littelfuse
    7.1 → 9.3V
    4V
    5.5V
    17.5V
    1A
    0.1J
    Metal
    ML
    -
    30A
    500pF
    1.6mm
    0.8mm
    1mm
    1.6 x 0.8 x 1mm
    0603 (1608M)
    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
    -
    EPCOS
    180V
    115V
    150V
    300V
    100A
    60J
    Metal
    Standard
    21.5mm
    6500A
    1.52nF
    -
    -
    4.7mm
    21.5 (Dia.) x 4.7mm
    -
    Panasonic
    1800V
    1000V
    1465V
    2970V
    50A
    510J
    ZNR
    V
    17mm
    5000A
    120pF
    38.5mm
    -
    14.4mm
    17 (Dia.) x 14.4mm
    -
    EPCOS
    240V
    150V
    200V
    395V
    50A
    40J
    Metal
    Standard
    15.5mm
    4500A
    750pF
    -
    -
    4.4mm
    15.5 (Dia.) x 4.4mm
    -
    Panasonic
    18V
    11V
    14V
    40V
    1A
    0.6J
    ZNR
    V
    7mm
    250A
    1.6nF
    30mm
    -
    4.5mm
    7 (Dia.) x 4.5mm
    -
    Panasonic
    390V
    250V
    320V
    675V
    5A
    17J
    ZNR
    V
    7mm
    800A
    80pF
    30mm
    -
    5.4mm
    7 (Dia.) x 5.4mm
    -
    EPCOS
    910V
    550V
    745V
    1500V
    300A
    960J
    Metal
    HighE
    40mm
    40000A
    1.4nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    EPCOS
    560V
    350V
    460V
    910V
    50A
    -
    -
    StandardD
    -
    -
    350pF
    -
    -
    -
    -
    14 mm
    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
    220V
    140V
    180V
    360V
    100A
    -
    -
    AdvancedD
    -
    -
    1.7nF
    -
    -
    -
    -
    20 mm
    Roxburgh EMC
    24V
    30V
    38V
    -
    -
    8.8J
    Metal
    DVS
    -
    1000A
    -
    75mm
    52.5mm
    12.5mm
    75 x 52.5 x 12.5mm
    -
    EPCOS
    430V
    275V
    350V
    710V
    5A
    -
    Metal
    CU
    -
    400A
    50pF
    8mm
    6.3mm
    4.5mm
    8 x 6.3 x 4.5mm
    1210 (3225M)
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