Varistors | Metal Oxide Varistors | MOV | RS
Login / Register to access your benefits
Recently searched

    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

    Roxburgh EMC
    -
    150V
    200V
    -
    -
    80J
    Metal
    DVS
    -
    6500A
    -
    75mm
    52.5mm
    12.5mm
    75 x 52.5 x 12.5mm
    -
    Littelfuse
    52V
    30V
    38V
    93V
    2.5A
    1.8J
    Metal
    ZA
    9mm
    250A
    1.245nF
    32mm
    -
    5mm
    9 (Dia.) x 5mm
    -
    EPCOS
    18V
    11V
    14V
    36V
    1A
    0.3J
    Metal
    Standard
    7mm
    100A
    1.75nF
    -
    -
    3.3mm
    7 (Dia.) x 3.3mm
    -
    Littelfuse
    5170V
    2800V
    3500V
    7400V
    -
    10000J
    Metal
    BB
    60mm
    70000A
    800pF
    100mm
    -
    -
    100 x 95 x 44.5mm
    -
    Littelfuse
    670 → 790V
    480V
    640V
    1160V
    100A
    180J
    Metal
    LA
    23mm
    6500A
    550pF
    40.5mm
    -
    7.3mm
    23 (Dia.) x 7.3mm
    -
    EPCOS
    1800V
    1100V
    1465V
    2970V
    500A
    3000J
    Metal
    HighE
    60mm
    70000A
    1.6nF
    100mm
    100mm
    24mm
    100 x 100 x 24mm
    SIOV
    Bourns
    27V
    17V
    22V
    44V
    1A
    -
    Metal
    ZV
    -
    -
    740pF
    -
    -
    -
    -
    1206 (3216M)
    KYOCERA AVX
    68V
    40V
    56V
    110V
    1A
    0.7J
    Ceramic
    VC
    -
    100A
    180pF
    3.2mm
    1.6mm
    -
    3.2 x 1.6 x 1.02mm
    1206 (3216M)
    EPCOS
    240V
    150V
    200V
    395V
    50A
    40J
    Metal
    Standard
    15.5mm
    4500A
    750pF
    -
    -
    4.4mm
    15.5 (Dia.) x 4.4mm
    -
    Littelfuse
    228V
    130V
    175V
    340V
    50A
    38J
    Metal
    LA
    17mm
    4500A
    1nF
    40mm
    -
    5.6mm
    17 (Dia.) x 5.6mm
    -
    EPCOS
    620V
    385V
    505V
    1025V
    25A
    40J
    Metal
    Standard
    12mm
    2500A
    175pF
    -
    -
    5.8mm
    12 (Dia.) x 5.8mm
    -
    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
    -
    Littelfuse
    429V
    250V
    330V
    650V
    100A
    130J
    Metal
    LA
    23mm
    6500A
    1nF
    46.5mm
    -
    5.6mm
    23 (Dia.) x 5.6mm
    -
    EPCOS
    100V
    60V
    85V
    165V
    100A
    33J
    Metal
    Standard
    21.5mm
    6500A
    3.6nF
    -
    -
    4.4mm
    21.5 (Dia.) x 4.4mm
    -
    Littelfuse
    354 → 413V
    250V
    330V
    620V
    100A
    130J
    Metal
    LA
    23mm
    6500A
    1nF
    40.5mm
    -
    5.6mm
    23 (Dia.) x 5.6mm
    -
    EPCOS
    6.4 → 9.6V
    4V
    5.5V
    17V
    5A
    0.8J
    Ceramic
    CT/B
    -
    500A
    10nF
    4.5mm
    3.2mm
    -
    4.5 x 3.2 x 2.5mm
    1812 (4532M)
    KYOCERA AVX
    68V
    40V
    56V
    110V
    1A
    0.7J
    Ceramic
    VC
    -
    100A
    180pF
    3.2mm
    1.6mm
    -
    3.2 x 1.6 x 1.02mm
    1206 (3216M)
    BC Components
    360V
    230V
    300V
    600V
    10A
    30J
    Metal
    VDR
    9mm
    1200A
    170pF
    35mm
    4.9mm
    6.5mm
    9 (Dia.) x 35mm
    -
    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)
    Panasonic
    47V
    30V
    38V
    93V
    10A
    14J
    ZNR
    V
    15.5mm
    2000A
    6.75nF
    38.5mm
    -
    5mm
    15.5 (Dia.) x 5mm
    -
    Results per page