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
  
                      
B72205S0300K101


Varistors 30volts 100A
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TDK 16029
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AUD 0.1296
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   93 V5 mm  720 pF- 40 C to + 85 C Bulk   47 V   
390KD10


Varistors 31V 77V 500A Through Hole RoHS
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Yageo 8283
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AUD 0.0887
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MOV31 VDC25 VAC77 V10 mm500 A4.6 J2400 pF RadialBulk 10DPCB Mount39 V- 40 C+ 105 C 
VCAS121030H620DP


Varistors 21VAC 30VDC 1.2J 1850pF 41 V 67V
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Kyocera AVX 1529
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AUD 0.6206
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MLV30 VDC21 VAC67 V-280 A1.2 J1850 pF SMD/SMTReel , Cut Tape1210 (3225 METRIC)VCASPCB Mount41 V- 55 C+ 125 CAEC - Q200
V131HB34


Varistors 40kA 130V 10000pF
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Littelfuse 195
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AUD 9.5716
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Mov175 V130 V345 V34 mm40 kA270 J10000 pF- 55 C to + 85 CSolder TerminalBulk Hx34  - 55 C+ 85 C 
B72220P3381K101


EPCOS TDK Varistors S20K385E3K1
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TDK 169
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AUD 0.2988
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Mov505 VDC385 VAC1.025 kV22.5 mm12 kA335 J800 pF- 40 C to + 85 CRadialBulk Disk, Superior Multipulse 620 VDC- 40 C+ 105 C 
MOVGT20V340K


Varistors MOVGT - MOV & GDT Combination, 20 mm disc size, 340 V MCOV
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Eaton 169
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AUD 1.3955
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MOV, GDT        AxialBulk MOVGT     
911KD14


Varistors 745V 1500V 4.5KA Through Hole RoHS
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Yageo 169
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AUD 0.1666
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MOV745 VDC550 VAC1500 V14 mm4.5 kA175 J220 pF Through HoleBulk 14DPCB Mount910 V- 40 C+ 105 C 
TMOV34S271EP


Varistors THERMALLY PROTECTED VARISTOR 34 MM DISC
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Littelfuse 168
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AUD 25.373
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MOV369 VDC275 VAC730 V34 mm40 kA550 J4500 pF RadialBulk TMOVPCB Mount473 V- 55 C+ 85 C 
B72214S0251K151


EPCOS TDK Varistors 250vrms 14mm StdCrmp,S14K250G5
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TDK 166
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AUD 0.2873
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Mov320 VDC250 VAC650 V14 mm4.5 kA65 J490 pF- 40 C to + 85 CRadialReel B722 390 VDC- 40 C+ 105 C 
WMR14D471KA3BW


Plugin,P=7.5 Varistors ROHS
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WMEC 150
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AUD 0.1946
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