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
    430V
    275V
    350V
    710V
    25A
    43J
    Metal
    Standard
    -
    2500A
    220pF
    12mm
    14.5mm
    5mm
    12 x 5 x 14.5mm
    -
    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
    470V
    300V
    385V
    775V
    25A
    47J
    Metal
    Standard
    12mm
    2500A
    200pF
    -
    -
    5.1mm
    12 (Dia.) x 5.1mm
    -
    EPCOS
    1000V
    625V
    825V
    1650V
    25A
    68J
    Metal
    Standard
    -
    2500A
    110pF
    12mm
    15mm
    7.5mm
    12 x 7.5 x 15mm
    -
    EPCOS
    270V
    175V
    225V
    455V
    100A
    -
    -
    AdvancedD
    -
    -
    1.35nF
    -
    -
    -
    -
    20 mm
    EPCOS
    240V
    150V
    200V
    395V
    50A
    40J
    Metal
    Standard
    15.5mm
    4500A
    750pF
    -
    -
    4.4mm
    15.5 (Dia.) x 4.4mm
    -
    Wurth Elektronik
    68V
    40V
    56V
    150V
    1A
    2.1J
    Metal
    WE-VD
    7.5mm
    100A
    500pF
    -
    -
    -
    -
    -
    Panasonic
    750V
    460V
    615V
    1240V
    100A
    420J
    ZNR
    E-S1
    17.5mm
    7500A
    530pF
    24.5mm
    -
    8.2mm
    17.5 (Dia.) x 8.2mm
    -
    Littelfuse
    11V
    4V
    5.5V
    22V
    2.5A
    0.4J
    Metal
    ZA
    9mm
    100A
    4.19nF
    32mm
    -
    5mm
    9 (Dia.) x 5mm
    -
    EPCOS
    620V
    385V
    505V
    1025V
    25A
    40J
    Metal
    Standard
    12mm
    2500A
    175pF
    -
    -
    5.8mm
    12 (Dia.) x 5.8mm
    -
    Bourns
    380V
    385V
    505V
    1000V
    200A
    -
    -
    IsoMOV
    -
    -
    50pF
    -
    -
    -
    -
    Bulk
    Roxburgh EMC
    240V
    275V
    350V
    -
    -
    264J
    Metal
    DVS
    -
    6500A
    -
    75mm
    52.5mm
    12.5mm
    75 x 52.5 x 12.5mm
    -
    Bourns
    430V
    275V
    350V
    710V
    50A
    115J
    Metal
    MOV-14D
    16.5mm
    4500A
    460pF
    40mm
    -
    5.2mm
    16.5 (Dia.) x 5.2mm
    -
    EPCOS
    205V
    130V
    170V
    340V
    25A
    19J
    Metal
    Standard
    12mm
    2500A
    500pF
    -
    -
    4.2mm
    12 (Dia.) x 4.2mm
    -
    Panasonic
    56V
    35V
    45V
    110V
    5A
    8.1J
    ZNR
    V
    11.5mm
    1000A
    3.75nF
    34.5mm
    -
    5.1mm
    11.5 (Dia.) x 5.1mm
    -
    Bourns
    24V
    14V
    16V
    40V
    5A
    -
    Metal
    AVHT
    -
    -
    4.5nF
    -
    -
    -
    -
    1812 (4532M)
    Panasonic
    150V
    95V
    125V
    250V
    100A
    106J
    ZNR
    V
    21.5mm
    10000A
    4.5nF
    44.5mm
    -
    5.6mm
    21.5 (Dia.) x 5.6mm
    -
    Littelfuse
    52V
    30V
    38V
    93V
    10A
    8.8J
    Metal
    ZA
    17mm
    1000A
    6.27nF
    40mm
    -
    5mm
    17 (Dia.) x 5mm
    -
    Panasonic
    39V
    25V
    31V
    77V
    2.5A
    2.4J
    ZNR
    V
    8.5mm
    500A
    1.6nF
    31.5mm
    -
    4.8mm
    8.5 (Dia.) x 4.8mm
    -
    Panasonic
    430V
    275V
    350V
    710V
    100A
    303J
    ZNR
    V
    21.5mm
    10000A
    1nF
    44.5mm
    -
    6.4mm
    21.5 (Dia.) x 6.4mm
    -
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