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.
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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
  
                      
B72220S2421K101


EPCOS TDK Varistors 420V RMS 20MM RADIAL Varistor S20K420E2
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TDK 6214
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AUD 0.857
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MOV560 VDC420 VAC1120 V21.5 mm10 kA273 J420 pF RadialBulk B722xxS2PCB Mount680 V- 40 C+ 105 C 
V271HF34


Littelfuse Varistors HIGH ENERGY
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Littelfuse 203
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AUD 12.6317
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MOV370 VDC275 VAC730 V34 mm40 kA400 J4500 pF RadialBulk HF34PCB Mount430 V- 55 C+ 85 C 
IsoM8-320-B-L2


Varistors IsoMOV 8KA 320Vrms Bulk In-Line
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Bourns 198
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AUD 1.4154
Multiples of: 1

MOV415 VDC320 VAC875 V23 mm250 A-50 pF RadialBulk IsoM8Through Hole-- 40 C+ 125 C 
GMOV-20D950K


Varistors 95VRMS 106J 270V-CLAMP
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Bourns 198
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AUD 1.4382
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Mov125 VDC95 VAC 23 mm10 kA106 J4 pF RadialBulk Gmov  - 40 C+ 85 C 
NTE2V035


Var MOV 35VAC/45VDC 1000A 56V Radial
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NTE 195
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AUD 2.4095
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          -       
911KD20


Varistors 745V 910 (819~1001) 1500V 6.5KA Through Hole RoHS
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Yageo 191
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AUD 0.5106
Multiples of: 1

MOV745 VDC550 VAC1.5 kV20 mm6.5 kA310 J440 pF RadialBulk 20DPCB Mount910 V- 40 C+ 105 C 
NTE524V25


TVS Varistor - MOV - 250 V - 320 V - NTE524V Series - 630 V ...
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NTE 164
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AUD 3.722
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WMR14D561KH3B3.5W


Varistors Through Hole RoHS
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WMEC 164
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AUD 0.2001
Multiples of: 5

   925 V          504 V ~ 616 V   
511KD20-FTB


Varistors 510V 6.5KA MOV Disc 20mm
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Yageo 133
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AUD 0.4351
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MOV415 VDC320 VAC845 V20 mm6.5 kA210 J780 pF RadialBulk 20DThrough Hole510 V- 40 C+ 105 C 
B72240B321K1


Varistors 320V RMS 40MM Varistor B40K320
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TDK 92
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AUD 30.3403
Multiples of: 1

MOV420 VDC320 VAC840 V40 mm40 kA640 J2300 pF ScrewBulk HighEChassis Mount510 V- 40 C+ 105 C 
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