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
  
                      
SFI0201-050E100NP-LF


72V 28V 0201 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 9804
Ships to you
between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0112
Multiples of: 50

                  
SFI0402ML240C-LF


Varistors 0402 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 3168
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AUD 0.0114
Multiples of: 50

                  
SFI0402ML120C-LF


Varistors 0402 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 779
Ships to you
between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0112
Multiples of: 50

                  
SFI0603-240E2R5PP-LF


0603 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 59
Ships to you
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AUD 0.016
Multiples of: 50

                  
SFI0402-050E330NP-LF


0402 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 44
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AUD 0.005
Multiples of: 50

                  
SFI0603-050E560NP-LF


0603 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 37
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AUD 0.0125
Multiples of: 50

                  
SFI0402EH240-0R20P


0402 ESD Protection Devices 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 35
Ships to you
between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0187
Multiples of: 50

                  
SFI0603-120E100NP-LF


0603 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 31
Ships to you
between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0127
Multiples of: 50

                  
SFI0402-240E2R5PP-LF


0402 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 21
Ships to you
between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0042
Multiples of: 100

                  
SFI0603EH060-0R20P


0603 ESD Protection Devices 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 16
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between Fri. 26 Jul to Wed. 31 Jul Calender.png

AUD 0.0235
Multiples of: 50

                  
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