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
  
                      
V100ZA20P


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 : 446
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USD 0.486
Multiples of: 1

MOV81 VDC60 VAC175 V20 mm6.5 kA30 J6500 pF RadialBulk ZAPCB Mount110 V- 55 C+ 85 C 
VDRS20W625BSE


Varistors 625volts 6500A 20D Radial
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Vishay Availability : 446
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USD 1.9869
Multiples of: 1

MOV320 VDC625 VAC1650 V20 mm6500 A448 J370 pF RadialBulk VDRSPCB Mount1000 V- 40 C+ 125 C 
10D911K


Varistors 745V 1500V 2.5KA Through Hole 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.

Hongzhi Availability : 444
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USD 0.0474
Multiples of: 5

   1500 V          910 (819 ~ 910)   
STE10D391K1EN0FQB0R0


Varistors 320V 390 (351~429) 650V 2.5KA Through Hole RoHS
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Songtian Availability : 444
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USD 0.0728
Multiples of: 5

   650 V          351 V ~ 429 V   
TVR07241KFAB200F


395V 15J 200V 150V 212V~235V 1.2kA Radial Leaded Varistors ROHS
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TKS Availability : 443
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USD 0.0525
Multiples of: 5

                  
B72240B321K1


Varistors 320V RMS 40MM Varistor B40K320
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TDK Availability : 443
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USD 21.7231
Multiples of: 1

MOV420 VDC320 VAC840 V40 mm40 kA640 J2300 pF ScrewBulk HighEChassis Mount510 V- 40 C+ 105 C 
820415511B


Varistors Disk Varistor HighSurge WE-VD - BULK
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Wurth Availability : 441
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USD 0.9152
Multiples of: 1

                  
14D820K


135V 65V 50V 74V~90V - Varistors ROHS
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SEMIWARE Availability : 440
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USD 0.0874
Multiples of: 5

   135 V          74 V ~ 90 V   
VC080518C400DP


Varistors 13VAC 18VDC 0.3J 550pF 25.5 V 42V
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Kyocera AVX Availability : 440
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USD 0.1184
Multiples of: 1

MLV18 VDC13 VAC42 V-100 A300 mJ550 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)VCPCB Mount25.5 V- 55 C+ 125 C 
D6521ZOV750RA55


20 mm 102 V 75 Vrms 210 V Clamp 100 A 4387 pF Epoxy Coated Zinc Oxide Varistor
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Maida Availability : 440
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USD 0.4369
Multiples of: 250

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