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
  
                      
ERZ-E05E391


Varistors ERZ-E 5mm 390V T&R ZNR Surge Absorber
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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.

Panasonic Availability : 901
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USD 0.0903
Multiples of: 1

Mov320 V250 V650 V7 mm1.2 kA26 J130 pF- 40 C to + 85 C Reel Erz - E 390 V   
Hot V14E320P


Varistors 320Vrms 6kA 380pF 14mm Disc
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Littelfuse Availability : 900
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USD 0.0481
Multiples of: 1

Mov420 V320 V840 V14 mm6 kA136 J380 pF- 55 C to + 85 CRadialBulk Ultramov 459 v to 561 V- 55 C+ 85 C 
Hot V480LA7P


Littelfuse Varistors 480V 50pF
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Littelfuse Availability : 900
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USD 0.1099
Multiples of: 1

Mov640 VDC480 VAC1.24 kV7 mm1.2 kA35 J50 pF- 55 C to + 85 CRadialBulk La 825 VDC- 55 C+ 85 C 
20D271K


Varistors 225V 455V 6.5KA Plugin RoHS
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Ruilongyuan Availability : 898
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USD 0.1647
Multiples of: 5

   455 V              
Hot ERZ-V05D221


Varistors 220V 600A ZNR SUR ABSORBER 5MM
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Panasonic Availability : 897
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USD 0.0845
Multiples of: 1

Mov180 V140 V380 V5 mm800 A9 J110 pF- 40 C to + 85 CRadial  V 220 V- 40 C+ 85 C 
820574211


Varistors Disk Varistor Standard WE-VD
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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.

Wurth Availability : 895
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USD 0.3604
Multiples of: 1

                  
RM20D511KE16E100


845V 1W 415V 780pF@1kHz 210J 320V 510V 4.5kA Radial Leaded,P=10mm Varistors 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.

Dersonic Availability : 894
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USD 0.1328
Multiples of: 1

                  
V420LA40B


Var MOV 420VAC/560VDC 6500A 720V Radial Bulk
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Littelfuse Availability : 894
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USD 1.7926
Multiples of: 1

Mov560 VDC420 VAC1.06 kV20 mm6.5 kA160 J600 pF RadialBulk La  - 55 C+ 85 C 
271KD05


Varistors 225V 270 (243~297) 475V 400A Through Hole RoHS
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Yageo Availability : 893
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USD 0.0222
Multiples of: 20

   475 V              
VC080514A300DP


Varistors 10VAC 14VDC 0.1J 325pF 18.5 V 32V
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Kyocera AVX Availability : 893
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USD 0.0958
Multiples of: 1

MLV14 VDC10 VAC32 V-40 A100 mJ325 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)VCPCB Mount18.5 V- 55 C+ 125 C 
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