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 V14E20P


Littelfuse Varistors 20Vrms 4kA 9290pF 14mm Disc
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Littelfuse Availability : 1724
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USD 0.3258
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Mov26 VDC20 VAC65 V14 mm4000 A20 J7500 pF- 40 C to + 85 CRadialBulk-Lv Ultramov 33 VDC- 40 C+ 85 C 
820445511E


Varistors WE-VD High Surge 14mm 550Vrms Type 5
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Wurth Availability : 1724
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USD 1.0471
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MOV745 VDC550 VAC1400 V16.5 mm6000 A255 J240 pF RadialBulk WE - VDPCB Mount910 V- 40 C+ 85 C 
CVQ300K7BL1


Varistors CV+ 300 K 7 B L1
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Bourns Availability : 1723
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USD 0.1416
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MOV385 VDC300 VAC775 V9 mm1750 A46 J150 pF RadialBulk CVQThrough Hole470 V- 40 C+ 85 C 
ERZ-E11A911SC


Varistors 910VDC 0.6W 1mA L/S=7.5mm Cut LD
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Panasonic Availability : 1722
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USD 0.3082
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MOV745 VDC550 VAC1500 V14 mm5 kA255 J240 pF RadialBulk ERZ - E - S1PCB Mount910 V- 40 C+ 125 C 
ERZ-V05D820CS


Varistors ZNR TransientSurge Absorbers Type D
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Panasonic Availability : 1721
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USD 0.1079
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MOV65 VDC50 VAC145 V5 mm800 A3.5 J460 pF Radial  VPCB Mount82 V- 40 C+ 85 C 
ERZ-E14A201


Panasonic Varistors 14mm D type 200volts 10KA 140J 1300pF
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Panasonic Availability : 1718
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USD 0.2645
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MOV170 VDC130 VAC340 V16.5 mm10 kA140 J1300 pF RadialBulk ERZ - E10PCB Mount200 V- 40 C+ 85 C 
Hot V10E275P


Varistors 275Vrms 3500A 200pF 10mm Disc
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Littelfuse Availability : 1716
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USD 0.1134
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MOV350 VDC275 VAC710 V10 mm3.5 kA55 J200 pF RadialBulk UltraMOVPCB Mount473 V- 55 C+ 85 C 
B72214P2551K101


Varistors 550VAC 10% 14mm MP AdvanceD
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TDK Availability : 1715
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USD 0.5172
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MOV745 VDC550 VAC1500 V17 mm6000 A220 J265 pF RadialBulk B72214PPCB Mount910 V- 40 C+ 105 C 
ERZ-V10D101


Var 60VAC/85VDC 3500A 100V Radial Bulk
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Panasonic Availability : 1683
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USD 0.1516
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Mov85 V60 V165 V10 mm3.5 kA17 J1700 pF- 40 C to + 85 CRadialBulk V 100 V- 40 C+ 85 C 
VC121048G101RP


Varistors 34VAC 48VDC 0.9J 450pF 62 V 100V
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Kyocera AVX Availability : 1523
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USD 0.4035
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Mlv48 V34 V100 V 220 A0.9 J450 pF- 55 C to + 125 CSmd/SmtReel1210 (3225 METRIC)Vc 62 V- 55 C+ 125 C 
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