About Varistors

Sfi 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
  
                      
SFI0806SV241-201A


0805 TVS 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.

SFI Availability : 0
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USD 0.0309
Multiples of: 10

                  
SFI0806SV431-101A


0806 TVS 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.

SFI Availability : 0
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USD 0.0397
Multiples of: 10

                  
SFI0806SV391-101A


Varistors 0806 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.

SFI Availability : 0
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USD 0.0482
Multiples of: 10

                  
SFI1206SV431-201A


Varistors 1206.0 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.

SFI Availability : 0
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USD 0.0848
Multiples of: 5

                  
SFI1206SV471-201A


Varistors 1206.0 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.

SFI Availability : 0
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USD 0.0911
Multiples of: 5

                  
SFI1206SV241-351A


Varistors 1206 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.

SFI Availability : 0
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USD 0.093
Multiples of: 5

                  
SFI0805ML080C-LF


0805 TVS 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.

SFI Availability : 0
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USD 0.0959
Multiples of: 5

                  
SFI0805ML470C-LF


Varistors 0805 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.

SFI Availability : 0
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USD 0.1028
Multiples of: 5

                  
SFI0805ML120C-LF


Varistors 0805 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.

SFI Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1063
Multiples of: 5

                  
SFI0805ML390C-LF


0805 TVS 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.

SFI Availability : 0
Ship by 6 to 16 Weeks Calender.png

USD 0.1144
Multiples of: 5

                  
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