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
  
                      
V0402MHS12NR


Varistors 18VDC .02J 55V@1A
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Littelfuse 184106
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USD 0.1305
Multiples of: 1

MOV18 VDC14 VAC55 V--0.01 J12 pF SMD/SMTReel , Cut Tape0402 (1005 METRIC)MHSPCB Mount55 V- 55 C+ 125 C 
V39ZA1P


Varistors 25 VAC 1.2J 79V-CLAMP 250A-PK
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Littelfuse 176753
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USD 0.1131
Multiples of: 1

   79 V7 mm  1100 pF- 55 C to + 85 C Bulk   39 V   
B72500D 50H160


ESD Suppressor CeraDiode 15KV 2-Pin SOD-523 T/R
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TDK 155200
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USD 0.0606
Multiples of: 4000

                  
VCH4AG150R4MATWA


Varistors 15volts 0.47pF
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Kyocera AVX 142824
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USD 0.0558
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Mlv15 V11 VAC110 V  700 Mj0.47 pF SolderReel0402 (1005 METRIC)Vc 135 V- 55 C+ 125 C 
V07E175PL2T5


Varistors 175V 7mm Epoxy UltraMOV
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Littelfuse 137740
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USD 0.0747
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Mov225 VDC175 VAC455 V7 mm1.75 kA17 J130 pF RadialBulk Ultramov 243 v to 297 V- 55 C+ 85 C 
AMCV-0402LC-180-C050Y-T


Varistors 5pF +100% -50% 22-28Volt Ip=2A
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ABRACON 134442
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USD 0.0278
Multiples of: 10000

MLV18 VDC12.7 VAC48 V-2 A5 mJ5 pF SMD/SMTReel , Cut Tape0402 (1005 METRIC)AMCVPCB Mount22 V to 28 V- 55 C+ 125 C 
VC080505C150TP


Varistors 4VAC 5.6VDC 0.3J 3000pF 8.5 V 18V
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Kyocera AVX 132599
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USD 0.0986
Multiples of: 1

MLV5.6 VDC4 VAC18 V-120 A300 mJ3000 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)VCPCB Mount8.5 V- 55 C+ 125 C 
V320LC7P


Varistors 07MM Radial
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Littelfuse 129939
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USD 0.2106
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MOV420 VDC320 VAC850 V7 mm1.2 kA 65 pF RadialBulk LAPCB Mount - 55 C+ 85 C 
V320LA7P


850V 420V 320V 510V Plugin Varistors ROHS
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Littelfuse 124796
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USD 0.1339
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Mov420 V320 V850 V7 mm1.2 kA 65 pF- 55 C to + 85 CRadialBulk La     
B72590D0150H060


Varistors 15V 0402 RoHS
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TDK 119212
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USD 0.075
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