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 VDRUS07M275BSE


Varistors 275V 1800A 07D Radial
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Vishay Availability : 2619
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USD 0.1957
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Mov350 VDC275 VAC710 V9 mm1.8 kA46 J140 pF RadialBulk VdrusPcb Mount430 V- 40 C+ 125 C 
820571311


Wurth Electronics Varistors WE-VD 7mm Disc 210pF 1200A 170VDC
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Wurth Availability : 1392
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USD 0.5828
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 170 VDC130 VAC340 V7 mm1.2 kA14.3 J210 pF- 40 C to + 125 CRadialReel We - Vd 200 VDC- 40 C+ 125 C 
RM10D331KD1IE100


545V 0.4W 43J 275V 300pF@1kHz 210V 330V 1250A Through Hole,P=7.5mm Varistors ROHS
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Dersonic Availability : 1390
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USD 0.0309
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V20E35P


Littelfuse Varistors 35Vrms 8kA 10000pF 20mm Disc
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Littelfuse Availability : 1388
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USD 0.4393
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Mov45 VDC35 VAC110 V20 mm8000 A115 J0.0105 uF- 40 C to + 85 CRadialBulk-Lv Ultramov 56 VDC- 40 C+ 85 C 
FTR20D102KJ


1.65kV 825V 625V 900V~1.1kV Plugin,P=10mm Varistors ROHS
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FTR Availability : 1387
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USD 0.1578
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   1.65 kV          900 V ~ 1.1 kV   
820453001


Varistors Disk Varistor HighSurge WE-VD
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Wurth Availability : 1387
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USD 0.3452
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B72530V1140S262


Var MOV 14VAC/16VDC 400A 22V 1210 SMD T/R
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TDK Availability : 1385
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USD 0.2771
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Mlv16 V14 V40 V 400 A3 J1700 pF- 55 C to + 125 CSolderReel1210 (3225 METRIC)B725 22 V- 55 C+ 125 C 
VDRUS10T510BSE


Varistors 510V 4500A 10D Radial
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Vishay Availability : 1385
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USD 0.5228
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Mov670 VDC510 VAC1.355 kV12.5 mm4.5 kA146 J135 pF RadialBulk VdrusPcb Mount820 V- 40 C+ 125 C 
ERZ-E07A561


Panasonic Varistors ERZ-E 7mm 560V Bulk ZNR Surge Absorber
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Panasonic Availability : 1384
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USD 0.0936
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Mov450 V350 V930 V9 mm2.5 kA75 J200 pF- 40 C to + 85 C Bulk Erz - E 560 V- 40 C+ 85 C 
820452001


Varistors Disk Varistor HighSurge WE-VD
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Wurth Availability : 1383
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USD 0.3651
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