Varistors | Metal Oxide Varistors | MOV | RS
最近搜索

    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.

    2081 產品顯示為 Varistors

    HK$424.30
    RS PRO
    -
    460V
    605V
    -
    -
    500J
    -
    High Power
    -
    -
    -
    61mm
    50mm
    40mm
    61 x 50 x 40mm
    -
    RS PRO
    360V
    250V
    330V
    620V
    -
    190J
    -
    High Power
    36mm
    12000A
    3.085nF
    -
    -
    4mm
    36 (Dia.) x 4mm
    -
    HK$422.30
    RS PRO
    -
    275V
    365V
    -
    -
    360J
    -
    High Power
    -
    -
    -
    61mm
    50mm
    40mm
    61 x 50 x 40mm
    -
    RS PRO
    710V
    484V
    640V
    1200V
    -
    320J
    -
    High Power
    32mm
    10000A
    1.62nF
    -
    -
    6mm
    32 (Dia.) x 6mm
    -
    RS PRO
    610V
    420V
    560V
    1050V
    -
    260J
    -
    High Power
    32mm
    10000A
    1.71nF
    -
    -
    5.5mm
    32 (Dia.) x 5.5mm
    -
    RS PRO
    400V
    275V
    370V
    680V
    -
    180J
    -
    High Power
    32mm
    10000A
    1.9nF
    -
    -
    4mm
    32 (Dia.) x 4mm
    -
    RS PRO
    670V
    460V
    615V
    1140V
    -
    350J
    -
    High Power
    36mm
    12000A
    2.05nF
    -
    -
    6mm
    36 (Dia.) x 6mm
    -
    RS PRO
    710V
    484V
    640V
    1200V
    -
    380J
    -
    High Power
    36mm
    12000A
    1.94nF
    -
    -
    6mm
    36 (Dia.) x 6mm
    -
    RS PRO
    400V
    275V
    370V
    680V
    -
    215J
    -
    High Power
    36mm
    12000A
    2.28nF
    -
    -
    4mm
    36 (Dia.) x 4mm
    -
    EPCOS
    240V
    150V
    200V
    395V
    25A
    24J
    Metal
    Standard
    12mm
    2500A
    430pF
    -
    -
    4.4mm
    12 (Dia.) x 4.4mm
    -
    Wurth Elektronik
    33V
    20V
    26V
    65V
    5A
    4.8J
    Metal
    WE-VD
    12.5mm
    1000A
    4.25nF
    -
    -
    5.1mm
    12.5 (Dia.) x 5.1mm
    -
    Panasonic
    470V
    300V
    385V
    775V
    50A
    175J
    ZNR
    V
    15.5mm
    6000A
    400pF
    38.5mm
    -
    6.2mm
    15.5 (Dia.) x 6.2mm
    -
    Panasonic
    47V
    30V
    38V
    93V
    2.5A
    1.8J
    ZNR
    VF
    -
    125A
    -
    8mm
    6mm
    3.2mm
    -
    -
    Wurth Elektronik
    39V
    25V
    30V
    65V
    1A
    0.3J
    ZnO
    WE-VS
    -
    100A
    310pF
    2mm
    1.25mm
    -
    -
    0805 (2012M)
    Bourns
    130 Vrms, 170 V dc
    130V
    170V
    360V
    10000A
    140J
    Metal
    GMOV
    23mm
    -
    4pF
    -
    -
    9mm
    23 (Dia.) x 9mm
    -
    EPCOS
    360V
    230V
    300V
    595V
    25A
    36J
    Metal
    Standard
    -
    2500A
    265pF
    12mm
    14.5mm
    4.7mm
    12 x 4.7 x 14.5mm
    -
    EPCOS
    120V
    75V
    100V
    120V
    200A
    -
    Ceramic
    Standard
    -
    1200A
    430pF
    10.2mm
    8mm
    -
    10.2 x 8 x 3.2mm
    4032
    Bourns
    270V
    175V
    225V
    455V
    10A
    21J
    Plastic
    PV
    -
    1200A
    120pF
    10mm
    -
    4.7mm
    -
    4032
    Panasonic
    42V
    -
    30V
    -
    -
    -
    Metal
    EXJZ
    -
    15A
    68pF
    1.6mm
    0.8mm
    0.8mm
    1.6 x 0.8 x 0.8mm
    0603 (1608M)
    EPCOS
    360V
    230V
    300V
    595V
    300A
    460J
    Metal
    HighE
    40mm
    40000A
    3.2nF
    60mm
    14mm
    14mm
    40 (Dia.) x 14mm
    -
    每頁顯示的結果