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Varistors

A varistor is an electronic component that has a voltage-current characteristic in which current flows when a certain voltage is reached. It is mainly used to protect semiconductors in electrics and electronic circuits from overvoltage. It has a structure where two electrodes sandwich a semiconductor ceramic with non-linear resistance characteristics. Varistors feature voltage and currents that are non-linear, and the current-voltage characteristics are symmetrical and have no polarity. The magnitude of the resistance changes depending on the voltage, and the lower the voltage, the higher the resistance, and the higher the voltage, the lower the resistance. At high voltage, the resistance of the varistor decreases and current flows, but the voltage drops due to the line impedance in the circuit. The varistor has performance such as surge current and energy resistance, excellent responsiveness, etc.
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    [SEMITEC] Varistor

    [SEMITEC] Varistor

    SEMITEC

    Various bulk items of varistor including through-hole mounted and surface mounted.
    [Features]
    · Large surge current and surge energy withstand.
    · Low discharge voltage to be distinguished in overvoltage protection.
    · No dynamic current.
    · Voltage / current characteristics are symmetric.
    · Well responsive to steep surge as well.
    · Highly abundant variations.
    From: ฿ 100.00
    Days to Ship: day to ship Quote
    day to ship Quote
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    TDK, Varistor

    TDK, Varistor【30 Pieces Per Package】

    TDK

    Surface mount type, chassis mount (ring and surface electrode), etc., various bulk items. Various varistors.
    From: ฿ 4,743.00
    Days to Ship: day to ship 15 Day(s)
    day to ship 15 Day(s)
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    Metal Oxide Varistors

    Metal Oxide Varistors

    KOA

    • Multilayer structure.
    • High surge current.
    • Protector against static electricity, switching and incoming surges.
    • Suitable for both flow and reflow soldering.
    • Products with lead-free terminations meet EU RoHS requirements. Pb located in glass material, electrode and varistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC
    From: ฿ 68.80
    Days to Ship: day to ship 5 Day(s)
    day to ship 5 Day(s)
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Varistor Voltage(V)
Maximum Surge Current(A)
Maximum AC Voltage(V)
Maximum DC Voltage(V)
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You can add up to 6 items per a category to the compare list.
[SEMITEC] Varistor
You can add up to 6 items per a category to the compare list.
TDK, Varistor
You can add up to 6 items per a category to the compare list.
Metal Oxide Varistors
Brand

SEMITEC

TDK

KOA

Product Series

[SEMITEC] Varistor

TDK, Varistor【30 Pieces Per Package】

Metal Oxide Varistors

From

฿ 100.00

฿ 4,743.00

฿ 68.80

Days to Ship Quote 15 Day(s) 5 Day(s)
Mounting Type-Through Hole-
Varistor Voltage(V)--50.4 - 61.6 Vc (Ic = 1mA (V))
Maximum Surge Current(A)-2k ~ 8k-
Maximum AC Voltage(V)-20 ~ 23035
Maximum DC Voltage(V)-26 ~ 30045
Series-Standard-

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