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
  
                      
B72214S0321K551


EPCOS TDK Varistors Varistor S14K320G5S5
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TDK Availability : 2567
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USD 0.2047
Multiples of: 1

Mov420 VDC320 VAC840 V14 mm4.5 kA84 J370 pF- 40 C to + 85 CRadialReel B722 510 VDC- 40 C+ 105 C 
VCAS080538C770RP


AVX Varistors 0805 38VDC .3J 77v
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Kyocera AVX Availability : 2565
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USD 0.3088
Multiples of: 1

Mlv38 VDC30 VAC77 V 80 A0.3 J200 pF- 55 C to + 125 CSmd/SmtReel0805 (2012 METRIC)Vcas 47 V- 55 C+ 125 C 
ERZ-E07A241


Panasonic Varistors ERZ-E 7mm 240V Bulk ZNR Surge Absorber
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Panasonic Availability : 2558
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USD 0.0803
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Mov200 V150 V395 V9 mm2.5 kA33 J380 pF- 40 C to + 85 C Bulk Erz - E 240 V- 40 C+ 85 C 
Hot V270MA2A


Varistors 163V 100A 17pF
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Littelfuse Availability : 2553
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USD 0.3402
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Mov224 V163 V460 V3 mm100 A 17 pF- 55 C to + 85 CAxialBulk Ma  - 55 C+ 85 C 
AMCV-1206H-220-T


Varistors 1100pF, 30V Ip=300A
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ABRACON Availability : 2551
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USD 0.282
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MLV22 VDC15.6 VAC45 V-300 A700 mJ1100 pF SMD/SMTReel , Cut Tape1206 (3216 METRIC)AMCVPCB Mount30 V- 55 C+ 85 C 
Hot B72220S2151K101


Var MOV 150VAC/200VDC 10000A 240V Radial Bulk
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TDK Availability : 2548
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USD 0.4402
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Mov200 V150 V395 V21.5 mm1 kA120 J1550 pF- 40 C to + 85 CRadialBulk Advanced 240 V- 40 C+ 105 C 
V36ZC80P


Varistors RADIAL VARISTOR 20MM ROHS / PB FREE
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Littelfuse Availability : 2546
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USD 0.4628
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Mov31 V23 V63 V20 mm2 kA 12000 pF- 55 C to + 85 CRadialBulk Za  - 55 C+ 85 C 
TMOV14RP420M


Varistors THERMALLY PROTECTED VARISTOR 14MM
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Littelfuse Availability : 2546
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USD 1.0764
Multiples of: 1

Mov748 VDC420 VAC1.12 kV14 mm6 kA160 J300 pF RadialBulk Itmov 748 V- 55 C+ 85 C 
B72214S0200K551


Varistors Varistor S14K20G5S5
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TDK Availability : 2545
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USD 0.2096
Multiples of: 1

Mov26 VDC20 VAC65 V14 mm1 kA6 J6800 pF RadialCut Tape Standardd 33 VDC- 40 C+ 105 C 
Hot B72214P2301K101


Varistors 385V Through Hole RoHS
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TDK Availability : 1595
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USD 0.1126
Multiples of: 5

 385 V300 VAC  6 kA140 J485 pF- 40 C to + 85 C Bulk Advanced  - 40 C+ 105 C 
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