About Varistors

Sembo 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
  
                      
07D471K


Varistors Through Hole,P=5mm 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.

SEMBO 970
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USD 0.034
Multiples of: 10

   775 V          426 V ~ 517 V   
07D330K


Varistors Through Hole,P=5mm 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.

SEMBO 950
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USD 0.0326
Multiples of: 10

   65 V          30 V ~ 36 V   
07D101K


165V 85V 60V 90V~110V Plugin Varistors ROHS
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SEMBO 940
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USD 0.039
Multiples of: 10

   165 V          90 V ~ 110 V   
07D241K


Plugin Varistors ROHS
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SEMBO 824
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USD 0.0287
Multiples of: 10

                  
14D561K


925V 125J 360pF@1kHz 460V 350V 504V~616V 4.5kA Radial Leaded Varistors ROHS
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SEMBO 727
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USD 0.1308
Multiples of: 5

                  
07D181K


Radial Leaded Varistors ROHS
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SEMBO 708
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USD 0.032
Multiples of: 10

                  
07D221K


Radial Leaded Varistors ROHS
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SEMBO 688
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USD 0.032
Multiples of: 10

                  
10D561K


Varistors Through Hole RoHS
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SEMBO 528
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USD 0.0662
Multiples of: 5

   920 V          504 V ~ 616 V   
07D270K


53V 22V 17V 24V~30V Plugin Varistors ROHS
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SEMBO 514
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USD 0.0365
Multiples of: 10

   53 V          24 V ~ 30 V   
07D271K


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.

SEMBO 485
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USD 0.0316
Multiples of: 10

                  
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