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
  
                      
V150LA1P


430V 200V 150V 250V Plugin Varistors ROHS
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Littelfuse 97646
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USD 0.0664
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MOV200 VDC150 VAC430 V7 mm1.2 kA13 J150 pF RadialBulk LAPCB Mount212 V to 284 V- 55 C+ 85 C 
V18MLE0402NR


Varistors MLV 18V 0402 STD MLE SERIES
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Littelfuse 87248
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USD 0.0721
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MLV18 VDC 50 V   55 pF SMD/SMTReel , Cut Tape0402 (1005 METRIC)MLEPCB Mount - 55 C+ 125 C 
7D471K


Varistors 385V 775V 1.2KA Through Hole RoHS
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Hongzhi 86727
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USD 0.0251
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   775 V          423 V ~ 517 V   
EZJ-Z1V650DM


Varistors 0603 40volts 27pF VV=65volts AEC-Q200
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Panasonic 86136
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USD 0.0824
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MLV40 VDC---5 A-27 pF SMD/SMTReel , Cut Tape0603 (1608 METRIC)EZJZ - MPCB Mount65 V- 55 C+ 125 CAEC - Q200
B72214S2321K101


Varistors 320V RMS 14MM RADIAL Varistor S14K320E2
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TDK 85858
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USD 0.1129
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Mov420 V320 V840 V10 mm6000 A136 J280 pF- 40 C to + 85 C Bulk D  - 40 C+ 105 C 
07D471K


Varistors 385V 775V 1.2KA Through Hole RoHS
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Ruilongyuan 84428
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USD 0.0186
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   775 V          423 V ~ 517 V   
Hot AVRH10C390KT500NA8


Varistors 0402 50pF 28VDC AEC-Q200
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TDK 80298
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USD 0.0399
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MLV28 VDC-72 V-15 A20 mJ50 pF SMD/SMTReel , Cut Tape0402 (1005 METRIC)AVRPCB Mount39 V- 55 C+ 150 CAEC - Q200
B72660M0461K093


Varistors Varistor CU4032K460G2K1
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TDK 79673
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USD 0.6724
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Mov615 VDC460 VAC1.24 kV 1 kA36 J55 pF- 40 C to + 85 CSmd/SmtReel4032 (102080 METRIC)Cu 750 V- 40 C+ 85 C 
B72530T140K62


Var MOV 14VAC/18VDC 400A 22V 1210 SMD Blister T/R
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TDK 76596
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USD 0.2162
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Mlv18 V14 V38 V 400 A1500 Mj2000 pF- 55 C to + 125 CSmd/SmtBulk1210 (3225 METRIC)Standard 22 V- 55 C+ 125 C 
VC15MA0340KBA


Varistors 34volt 2220 AUTO 10% Vclamp=10A
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Kyocera AVX 6481
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USD 0.8545
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Mlv34 V30 V77 V 1.2 kA12 J4000 pF- 55 C to + 125 CSolderReel2220 (5750 METRIC)Vc 51.7 V- 55 C+ 125 C 
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