Varistors

A varistor (also known as a voltage-dependent resistor, or VDR) is a resistor whose resistance changes as the voltage across it increases or decreases. Varistors are typically constructed from a ceramic material containing semiconductor materials such as silicon and germanium. They have a relatively large resistance at low voltage levels, but as the voltage increases, their resistance drops significantly, allowing more current to flow through them. This feature makes them useful for absorbing transient voltages, which are sudden increases in the voltage that can occur when a device is powered on or off. Varistors are also commonly used to provide overvoltage protection, where they absorb and dissipate excessive voltages before they reach sensitive electronic components.

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Enter Qty ProductVoltage Rating DCVoltage Rating ACClamping VoltageDiameterPeak Surge CurrentSurge Energy RatingCapacitanceOperating Temperature RangeTermination StylePackagingPackage / CaseSeriesMounting StyleVaristor VoltageMinimum Operating TemperatureMaximum Operating TemperatureQualification
  
                      
Z33M681S


Varistors 680V 20000A mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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AUD 62.8172

Multiples of: 100

 510 VDC365 VAC93 V12.5 mm500 A460 J4600 pF RadialBulk Z33MPCB Mount - 40 C+ 85 C 
Z33M821S


Varistors 820V 20000A mm
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AUD 62.8172

Multiples of: 100

 615 VDC440 VAC110 V12.5 mm500 A580 J3750 pF RadialBulk Z33MPCB Mount - 40 C+ 85 C 
Z33M561S


Varistors 560V 20000A mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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AUD 62.8172

Multiples of: 100

 420 VDC300 VAC77 V12.5 mm500 A425 J5200 pF RadialBulk Z33MPCB Mount - 40 C+ 85 C 
B72240B0421K001


VARISTOR, METAL OXIDE, 1.12KV, BLOCK
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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AUD 64.6669

Multiples of: 1

        - 40 C To + 85 C         
S14K40


S14K40
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AUD 65.1396

Multiples of: 1

          -       
V661DB40


Littelfuse Varistors 40kA 1050V 40kA 2000pF
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AUD 65.3214

Multiples of: 1

 850 VDC660 VAC1.72 kV40 mm40 kA900 J2000 pF- 55 C to + 85 CScrewBulk Da / Db  - 55 C+ 85 C 
B72240B0131K001


VARISTOR, METAL OXIDE, 340V, BLOCK
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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AUD 66.5167

Multiples of: 1

        - 40 C To + 85 C         
Z33M102S


Varistors 1000V 20000A mm
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AUD 68.9366

Multiples of: 100

 730 VDC520 VAC135 V16 mm4.5 kA620 J3700 pF RadialBulk Z33MPCB Mount - 40 C+ 85 C 
Z25M102S


Varistors 1000V 10000A mm
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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AUD 68.9366

Multiples of: 100

 730 VDC520 VAC455 V16 mm4.5 kA375 J640 pF RadialBulk Z25MPCB Mount - 40 C+ 85 C 
B72240B0551K001


VARISTOR, METAL OXIDE, 1.5KV, BLOCK
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AUD 69.8513

Multiples of: 1

                  
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