About Varistors

FTR 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
  
                      
FTR07D511K


Varistors 415V 845V 1.2KA 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.

FTR Availability : 30652
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USD 0.0172

Multiples of: 20

   845 V          459 V ~ 561 V   
FTR07D471K


Varistors 385V 775V 1.2KA 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.

FTR Availability : 25045
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USD 0.0158

Multiples of: 20

   775 V          423 V ~ 517 V   
FTR10D681KJ


Varistors 560V 1120V 2.5KA Through Hole,P=7.5mm 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.

FTR Availability : 18808
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0401

Multiples of: 10

   1120 V          612 V ~ 748 V   
FTR07D390K


Varistors 31V 77V 250A 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.

FTR Availability : 18022
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0257

Multiples of: 10

   77 V          35 V ~ 43 V   
FTR07D470K


Varistors 38V 93V 250A 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.

FTR Availability : 15694
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0218

Multiples of: 10

   93 V          42 V ~ 52 V   
FTR07D431K


Varistors 350V 710V 1.2KA 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.

FTR Availability : 15655
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0162

Multiples of: 20

   710 V          387 V ~ 473 V   
FTR10D470K


Varistors 38V 93V 500A Through Hole,P=7.5mm 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.

FTR Availability : 15107
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0428

Multiples of: 5

   93 V          42 V ~ 52 V   
FTR10D821K


Varistors 670V 1355V 2.5KA Through Hole,P=7.5mm 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.

FTR Availability : 15049
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0402

Multiples of: 5

   1355 V          738 V ~ 902 V   
FTR07D821KJ


1.355kV 670V 510V 738V~902V Plugin Varistors ROHS
Icon ROHS
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.

FTR Availability : 14550
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0223

Multiples of: 10

   1.355 kV          738 V ~ 902 V   
FTR10D681K


Varistors 560V 1120V 2.5KA Through Hole,P=7.5mm RoHS
Icon ROHS
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.

FTR Availability : 14511
Ship by Thu. 11 Jul to Tue. 16 Jul Calender.png

USD 0.0361

Multiples of: 5

   1120 V          612 V ~ 748 V   
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