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 V42MLA1206NH


Varistors 42 VDC .8J 92V-CLMP 180A PK
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Littelfuse Availability : 3898
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USD 0.1383
Multiples of: 5

MLV42 VDC30 VAC92 V-180 A800 mJ425 pF SMD/SMTReel , Cut Tape1206 (3216 METRIC)MLAPCB Mount46 V- 55 C+ 125 C 
MOV-14D101K


Varistors 100volts 14mm
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Bourns Availability : 3883
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USD 0.1188
Multiples of: 1

MOV100 VDC60 VAC165 V14 mm4.5 kA28 J2000 pF RadialBulk MOV - 14DxxxKPCB Mount100 V- 40 C+ 85 C 
D69ZOV301RA80


MOV - Standard, 14mm, 300VAC, 6000A Imax
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Maida Availability : 3883
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USD 0.235
Multiples of: 500

          -       
K0603ESDA-05N


0603 Varistors ROHS
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Yongyutai Electronics Availability : 3880
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USD 0.0081
Multiples of: 50

                  
KMOV0603A8R0K


0603 Varistors ROHS
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Yongyutai Electronics Availability : 3880
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USD 0.0179
Multiples of: 20

                  
RM10D511KD1IE1RT


845V 415V 320V 510V Plugin,P=7.5mm Varistors ROHS
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Dersonic Availability : 3880
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USD 0.0316
Multiples of: 10

                  
B72205S251K101


Varistors 250volts 400A
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TDK Availability : 3880
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USD 0.0405
Multiples of: 1

Mov   5 mm     Bulk       
RL0805A300K


79V 0805 Varistors ROHS
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Ruilongyuan Availability : 3880
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USD 0.0458
Multiples of: 5

   79 V              
MOV-07D241KTR


Bourns Varistors 210pF 240volts 10%
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Bourns Availability : 3880
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USD 0.047
Multiples of: 2000

MOV264 VDC150 VAC395 V7 mm1.2 kA15 J210 pF RadialReel , Cut Tape MOV - 07DxxxKPCB Mount240 V- 40 C+ 85 C 
Hot AMCV-0805-5R5-C180N-T


Varistors 18pF +/-30% 10-14Volt Ip=3A
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ABRACON Availability : 3880
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USD 0.0581
Multiples of: 4000

MLV5.5 VDC4 VAC23 V-3 A5 mJ18 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)AMCVPCB Mount14 V- 55 C+ 125 C 
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