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
    100A
    250J
    Metal
    Advanced
    20mm
    10000A
    780pF
    21.5mm
    25.5mm
    6.1mm
    21.5 x 6.1 x 25.5mm
    -
    Wurth Elektronik
    -
    10V
    14V
    45V
    16A
    -
    Ceramic
    WE-VE femtoF
    -
    -
    0.05pF
    1.6mm
    -
    0.9mm
    -
    0603
    EPCOS
    620V
    385V
    505V
    1025V
    10A
    28J
    Metal
    Standard
    -
    1200A
    85pF
    9mm
    11.5mm
    5.2mm
    9 x 5.2 x 11.5mm
    -
    Littelfuse
    73 → 91V
    50V
    68V
    145V
    50A
    15J
    Metal
    ZA
    14mm
    4500A
    3.38nF
    40mm
    -
    5.6mm
    14 (Dia.) x 5.6mm
    -
    EPCOS
    120V
    75V
    100V
    200V
    10A
    5.9J
    Metal
    Standard
    9mm
    1200A
    430pF
    -
    -
    3.6mm
    9 (Dia.) x 3.6mm
    -
    EPCOS
    470V
    300V
    385V
    775V
    4500A
    76J
    Metal
    Standard
    15.5mm
    -
    300pF
    -
    -
    5.2mm
    15.5 (Dia.) x 5.2mm
    -
    Panasonic
    430V
    275V
    350V
    710V
    10A
    99J
    ZNR
    V
    11.5mm
    4500A
    350pF
    35mm
    -
    6.5mm
    11.5 (Dia.) x 6.5mm
    -
    EPCOS
    680V
    420V
    560V
    1120V
    100A
    -
    -
    AdvancedD
    -
    -
    550pF
    -
    -
    -
    -
    20 mm
    BC Components
    360V
    230V
    300V
    600V
    10A
    30J
    Metal
    VDR
    9mm
    1200A
    170pF
    35mm
    4.9mm
    6.5mm
    9 (Dia.) x 35mm
    -
    Vishay
    430V
    275V
    350V
    710V
    10A
    36J
    -
    VDRS - E
    9mm
    1200A
    140pF
    -
    -
    4.9mm
    9 (Dia.) x 4.9mm
    -
    EPCOS
    27V
    17V
    22V
    53V
    2.5A
    1.1J
    Metal
    StandarD
    9mm
    250A
    1.9nF
    -
    -
    3.6mm
    9 (Dia.) x 3.6mm
    -
    EPCOS
    18V
    11V
    14V
    36V
    1A
    0.3J
    Metal
    Standard
    7mm
    100A
    1.75nF
    -
    -
    3.3mm
    7 (Dia.) x 3.3mm
    -
    Panasonic
    270V
    175V
    225V
    475V
    5A
    11J
    ZNR
    V
    7mm
    800A
    90pF
    30mm
    -
    4.8mm
    7 (Dia.) x 4.8mm
    -
    Bourns
    27V
    17V
    22V
    44V
    1A
    -
    Metal
    ZV
    -
    -
    740pF
    -
    -
    -
    -
    1206 (3216M)
    Littelfuse
    277V
    320V
    -
    -
    -
    -
    Metal
    LSP05
    -
    10000A
    -
    64mm
    48mm
    30mm
    64 x 48 x 30mm
    -
    BC Components
    390V
    250V
    320V
    650V
    25A
    58J
    ZnO Ceramic
    VDR
    13.5mm
    2500A
    300pF
    31.5mm
    5.4mm
    8mm
    13.5 (Dia.) x 8mm
    -
    Panasonic
    470V
    300V
    385V
    775V
    10A
    42J
    ZNR
    V
    8.5mm
    1750A
    100pF
    31.5mm
    -
    5.8mm
    8.5 (Dia.) x 5.8mm
    -
    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
    250V
    250V
    320V
    675V
    50A
    -
    -
    IsoMOV
    -
    -
    30pF
    -
    -
    -
    -
    Bulk
    EPCOS
    750V
    460V
    615V
    1240V
    100A
    195J
    Metal
    Standard
    21.5mm
    8000A
    380pF
    -
    -
    6.8mm
    21.5 (Dia.) x 6.8mm
    -
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