About Varistors

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
  
                      
Hot V275LA20APX2855


Littelfuse Varistors RADIAL VARISTOR 20MM ROHS LEAD FREE
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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.

Littelfuse Availability : 1358
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USD 0.2957
Multiples of: 1

MOV369 VDC275 VAC710 V14 mm4.5 kA75 J450 pF RadialBulk LAPCB Mount473 V- 55 C+ 85 C 
V18ZA20P


Varistors RADIAL VARISTOR 20MM ROHS/LEAD FREE
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Littelfuse Availability : 1357
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USD 0.4628
Multiples of: 1

MOV14 VDC10 VAC37 V20 mm2 kA10 J0.022 uF RadialBulk ZAPCB Mount19.8 V- 55 C+ 85 C 
B72220S0141K101


EPCOS TDK Varistors 140volts 8000A
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TDK Availability : 1355
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USD 0.3795
Multiples of: 1

   360 V20 mm  1240 pF- 40 C to + 85 C Bulk   220 V   
FTR20D821KJ


1.355kV 670V 510V 738V~902V Plugin Varistors ROHS
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FTR Availability : 1353
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USD 0.1399
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   1.355 kV          738 V ~ 902 V   
TVR14241KS7SW


395V 200V 150V Plugin,P=7.5mm Varistors ROHS
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TKS Availability : 1345
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USD 0.1265
Multiples of: 5

   395 V          -   
Hot B72220P3271K101


Varistors 275VAC 10% 20mm SuperioR MP
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TDK Availability : 1345
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USD 0.5772
Multiples of: 1

MOV350 VDC275 VAC710 V22.5 mm12 kA280 J1150 pF RadialBulk B72220PPCB Mount430 V- 40 C+ 105 C 
ERZ-E11A221S1


Varistors 220VDC 0.6W 1mA L/S=7.5mm Long LD
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Panasonic Availability : 1343
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USD 0.2423
Multiples of: 1

MOV180 VDC140 VAC360 V13 mm6 kA78 J660 pF RadialBulk ERZ - E - S1PCB Mount220 V- 40 C+ 125 C 
B72210S2511K101


EPCOS TDK Varistors Varistor S10K510E2
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TDK Availability : 1343
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USD 0.3377
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Mov670 VDC510 VAC1355 V12 mm3.5 kA80 J110 pF- 40 C to + 85 CRadialBulk Advanced 820 VDC- 40 C+ 105 C 
MVR1210-390G


1210 Varistors ROHS
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DOWO Availability : 1342
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USD 0.0815
Multiples of: 5

                  
STE20D180K1DQ0FST0R0


Varistors 14V 36V 2KA Through Hole,P=10MM RoHS
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Songtian Availability : 1338
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USD 0.2128
Multiples of: 5

   36 V          15 V ~ 21.6 V   
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