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 V385LA7P


1.025kV 505V 385V 620V Plugin Varistors ROHS
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Littelfuse Availability : 1455
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USD 0.108
Multiples of: 1500

Mov505 V385 V1.025 kV7 mm1.2 kA 60 pF- 55 C to + 85 CRadialBulk La  - 55 C+ 85 C 
B72205S271K111


EPCOS TDK Varistors 275vrms 5mm StdCrimp
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TDK Availability : 1455
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USD 0.1106
Multiples of: 1500

Mov   5 mm     Reel       
Hot V250LC20AP


Varistors 250V 500pF
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Littelfuse Availability : 1455
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USD 0.1971
Multiples of: 1

MOV330 VDC250 VAC650 V14 mm4.5 kA72 J500 pF RadialBulk LAPCB Mount429 V- 55 C+ 85 C 
EV14D320K


Var MOV 320VAC/415VDC 4500A 561V Radial Bulk
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World Products Availability : 1455
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USD 0.1542
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VC120645K900RP


Varistors 35VAC 45VDC 0.6J 260pF 56 V 90V
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Kyocera AVX Availability : 1455
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USD 0.1576
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Mlv45 VDC35 VAC90 V 200 A600 Mj260 pF Smd/SmtCut Tape1206 (3216 METRIC)VcPcb Mount56 V- 55 C+ 125 C 
VDRH07D020TSE


Varistors
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Vishay Availability : 1455
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USD 0.1666
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            Vdrh     
V07E320P


Littelfuse Varistors 320Vrms 1750A 65pF 7mm Disc
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Littelfuse Availability : 1455
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USD 0.182
Multiples of: 1500

MOV420 VDC320 VAC840 V7 mm1.75 kA32 J65 pF RadialBulk UltraMOVPCB Mount561 V- 55 C+ 85 C 
Z7D431


Varistors 430V 1250A 8.5mm
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Semitec Availability : 1455
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USD 0.21
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MOV350 VDC275 VAC845 V8.5 mm6.5 kA40 J800 pF RadialBulk Z7DPCB Mount430 V- 40 C+ 85 C 
VC120603D100DP


Varistors 2.3VAC 3.3VDC 0.4J 4700pF 5 V 12V
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Kyocera AVX Availability : 1455
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USD 0.2898
Multiples of: 1

MLV3.3 VDC2.3 VAC12 V-150 A400 mJ4700 pF SMD/SMTReel , Cut Tape1206 (3216 METRIC)VCPCB Mount5 V- 55 C+ 125 C 
MOV-20D220K


Varistors 22volts 20mm
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Bourns Availability : 1455
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USD 0.3011
Multiples of: 500

MOV22 VDC14 VAC43 V20 mm1 kA5 J9100 pF RadialBulk MOV - 20DxxxKPCB Mount22 V- 40 C+ 85 C 
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