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
  
                      
AMCV-1206H-5R5-T


Varistors 2400pF, 12V Ip=300A
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ABRACON Availability : 2889
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USD 0.2423
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MLV5.5 VDC4 VAC18 V-300 A700 mJ2400 pF SMD/SMTReel , Cut Tape1206 (3216 METRIC)AMCVPCB Mount12 V- 55 C+ 85 C 
ERZ-E11A271S1


Varistors 270VDC 0.6W 1mA L/S=7.5mm Long LD
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Panasonic Availability : 2888
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USD 0.2399
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MOV225 VDC175 VAC455 V13 mm6 kA99 J580 pF RadialBulk ERZ - E - S1PCB Mount270 V- 40 C+ 125 C 
HEL5D391K


Varistor: metal-oxide; THT; 250VAC; 320VDC; 390V; ±10%; 400A; 17J
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SR Passives Availability : 2887
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USD 0.0273
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              390 V   
VDR-14D681K


Plugin,P=7.5mm Varistors ROHS
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VDR Availability : 2887
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USD 0.0912
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ERZ-E11A331


Panasonic Varistors ERZ-E 11mm 330V Bulk ZNR Surge Absorber
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Panasonic Availability : 2885
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USD 0.1226
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Mov270 V210 V545 V13 mm6 kA115 J520 pF- 40 C to + 85 C Bulk Erz - E 330 V- 40 C+ 85 C 
B72210S0251K151


EPCOS TDK Varistors Varistor S10K250G5
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TDK Availability : 2885
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USD 0.1552
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Mov320 VDC250 VAC650 V10 mm2.5 kA38 J245 pF- 40 C to + 85 CRadialReel B722 390 VDC- 40 C+ 105 C 
B72210S0131K151


Varistors Varistor S10K130G5
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TDK Availability : 2885
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USD 0.1561
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Mov170 VDC130 VAC340 V10 mm2.5 kA19 J500 pF- 40 C to + 85 CRadialReel B722 205 VDC- 40 C+ 105 C 
82550110


Wurth Electronics Varistors WE-VS SMD 0805 750pF 100A 14VDC
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Wurth Availability : 2885
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USD 0.5283
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MOV14 VDC11 VAC30 V-100 A100 mJ750 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)WE - VSPCB Mount18 V- 40 C+ 85 C 
MLVC13V022C1100


30V 300A Varistor 1 Circuit Surface Mount, MLCV 1210 (3225 Metric)
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Eaton Availability : 2883
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USD 0.3562
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MLV22 VDC15.6 VAC53 V-300 A1.5 J1100 pF SMD/SMTReel , Cut Tape1210 (3225 METRIC)MLVCSMD/SMT30 V- 55 C+ 125 C 
MVR1206-240G


24V 1206 Varistors ROHS
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DOWO Availability : 2880
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USD 0.0306
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              24 V   
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