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 V68ZS2P


Varistors 250A 600pF
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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 : 40740
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USD 0.129
Multiples of: 1000

MOV56 VDC40 VAC135 V7 mm250 A3 J600 pF RadialReel , Cut Tape ZAPCB Mount74.8 V- 55 C+ 85 C 
391KD10-TR


Varistors 390V 2.5KA MOV Disc 10mm
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Yageo Availability : 916
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USD 0.0849
Multiples of: 1

MOV320 VDC250 VAC650 V10 mm2.5 kA60 J260 pF RadialReel , Cut Tape 10DThrough Hole390 V- 40 C+ 105 C 
V20P40P


Varistors 40V 20mm Phenolic UltraMOV
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Littelfuse Availability : 916
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USD 0.48
Multiples of: 1

MOV56 VDC40 VAC135 V20 mm8 kA140 J8500 pF RadialBulk LV UltraMOVPCB Mount68 V- 40 C+ 125 C 
B72240B0750K001


Varistors 75VAC 10% 40mm High E
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TDK Availability : 916
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USD 18.4692
Multiples of: 1

MOV100 VDC75 VAC220 V40 mm25 kA190 J0.011 uF ScrewBulk HighEChassis Mount120 V- 40 C+ 105 C 
SDV1005S5R5C030YPTF


Varistors 5.5V 31~38 58V 0402 RoHS
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Sunlord Availability : 915
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USD 0.003
Multiples of: 100

   58 V          31 V ~ 38 V   
ERZ-E11A821


Panasonic Varistors ERZ-E 11mm 820V Bulk ZNR Surge Absorber
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Panasonic Availability : 915
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USD 0.1679
Multiples of: 1

Mov670 V510 V1.355 kV14 mm5 kA235 J260 pF- 40 C to + 85 C Bulk Erz - E 820 V- 40 C+ 85 C 
IsoM8-420-B-L2


Varistors IsoMOV 8KA 420Vrms Bulk In-Line
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Bourns Availability : 915
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USD 0.914
Multiples of: 1

MOV560 VDC420 VAC1.1 kV23 mm250 A-50 pF RadialBulk IsoM8Through Hole-- 40 C+ 125 C 
Hot V130LA20AP


Varistors 130V 1900pF
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Littelfuse Availability : 914
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USD 0.1963
Multiples of: 1

   340 V20 mm  1900 pF- 55 C to + 85 C Bulk   200 V   
NVD14UCD200


Varistors 200Volt 14mm
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KOA Speer Availability : 914
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USD 0.2775
Multiples of: 1

Mov170 V130 V340 V14 mm5 kA50 J - 40 C to + 125 CRadialReel Nvd 200 V- 40 C+ 85 CAec - Q200
TMOV14RP115EL2T7


Varistors THERMALLY PROTECTED VARISTOR 14MM
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Littelfuse Availability : 914
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USD 0.9218
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MOV180 VDC125 VAC300 V14 mm6 kA 1100 pF RadialReel TMOVPCB Mount - 55 C+ 85 C 
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