About Varistors

Surging 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.

Varistors

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(Ex. GST)(▲▼)		Enter Qty ProductVoltage Rating DCVoltage Rating ACClamping VoltageDiameterPeak Surge CurrentSurge Energy RatingCapacitanceOperating Temperature RangeTermination StylePackagingPackage / CaseSeriesMounting StyleVaristor VoltageMinimum Operating TemperatureMaximum Operating TemperatureQualification
  
                      
7D271K


455V 0.25W 185pF@1kHz 225V 18J 175V 270V 1.2kA Radial Leaded,P=7mm Varistors ROHS
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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.

SURGING Availability : 2667
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USD 0.0402
Multiples of: 10

                  
20D431K


710V 190J 350V 275V 6.5kA Radial Leaded,P=10mm Varistors ROHS
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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.

SURGING Availability : 2575
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USD 0.1503
Multiples of: 5

                  
20D821K


1.355kV 282J 525pF@1kHz 670V 510V 738V~902V 6.5kA Radial Leaded Varistors ROHS
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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.

SURGING Availability : 2425
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USD 0.1938
Multiples of: 5

                  
14D511K


845V 390pF@1kHz 415V 320V 459V~561V 125J 4.5kA Radial Leaded,P=7.5mm Varistors ROHS
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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.

SURGING Availability : 2211
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USD 0.0811
Multiples of: 5

   845 V          459 V ~ 561 V   
WLRSV3225-511K


100mW 15J 415V 320V 700A SMD Varistors ROHS
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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.

SURGING Availability : 2163
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USD 0.0497
Multiples of: 5

                  
5D511K


845V 0.1W 50pF@1kHz 16J 415V 320V 510V 400A Radial Leaded,P=7mm Varistors ROHS
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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.

SURGING Availability : 1852
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USD 0.0328
Multiples of: 10

                  
20D271KJ


455V 1W 127J 1500pF@1kHz 225V 175V 270V 6.5kA Radial Leaded Varistors ROHS
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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.

SURGING Availability : 1479
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USD 0.1691
Multiples of: 5

                  
7D621K


1.025kV 33J 80pF@1kHz 505V 385V 558V~682V 1.2kA Radial Leaded,P=5mm Varistors ROHS
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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.

SURGING Availability : 1474
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USD 0.0223
Multiples of: 20

                  
10D681KJ


1.12kV 98J 560V 420V 3.5kA Radial Leaded,P=7.5mm Varistors ROHS
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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.

SURGING Availability : 1275
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USD 0.0579
Multiples of: 5

                  
10D821KJ


1.355kV 110J 670V 510V 3.5kA Radial Leaded,P=7.5mm Varistors ROHS
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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.

SURGING Availability : 1212
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USD 0.0647
Multiples of: 5

                  
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