About Varistors

Koa Speer 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
  
                      
NVD14UCD039


Varistors 39Volt 14mm
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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.

KOA Speer 1215
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USD 0.2863
Multiples of: 1

Mov31 V25 V77 V14 mm1 kA9.4 J - 40 C to + 125 CRadialReel Nvd 39 V- 40 C+ 85 CAec - Q200
NVD07UCD200


Varistors 200Volt 7mm
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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.

KOA Speer 1183
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USD 0.0812
Multiples of: 1

Mov170 V130 V340 V7 mm1.25 kA12.5 J - 40 C to + 125 CRadialReel Nvd 200 V- 40 C+ 85 CAec - Q200
NV73A2ETTE22


Varistors 1210 22V
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KOA Speer 970
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USD 0.3912
Multiples of: 1

MOV16.5 VDC12 VAC39 V-400 A1.4 J- SMD/SMTReel , Cut Tape1210 (3225 METRIC)NV73PCB Mount22 V- 50 C+ 125 CAEC - Q200
NVD07UCD027


Varistors 27Volt 7mm
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KOA Speer 949
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USD 0.0812
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Mov22 V17 V53 V7 mm250 A1.3 J - 40 C to + 125 CRadialReel Nvd 27 V- 40 C+ 85 CAec - Q200
NV73B2JTTE39


Varistors 1812 39V
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KOA Speer 929
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USD 0.7513
Multiples of: 1

MOV30 VDC25 VAC65 V-800 A3.7 J- SMD/SMTReel , Cut Tape1812 (4532 METRIC)NV73PCB Mount39 V- 50 C+ 125 CAEC - Q200
NVD14UCD200


Varistors 200Volt 14mm
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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.

KOA Speer 914
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USD 0.2863
Multiples of: 1

Mov170 V130 V340 V14 mm5 kA50 J - 40 C to + 125 CRadialReel Nvd 200 V- 40 C+ 85 CAec - Q200
NVD10UCD780


Varistors 780Volt 10mm
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KOA Speer 907
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USD 0.3737
Multiples of: 1

Mov640 VDC485 VAC1.29 kV10 mm2.5 kA70 J- RadialCut Tape U 780 VDC- 40 C+ 85 CAec - Q200
NVD14UCD780


Varistors 780Volt 14mm
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KOA Speer 878
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USD 0.4012
Multiples of: 1

Mov640 V485 V1.29 kV14 mm4.5 kA150 J - 40 C to + 125 CRadialReel Nvd 780 V- 40 C+ 85 CAec - Q200
NVD05UCD022


Varistors 22Volt 5mm
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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.

KOA Speer 776
Ships to you
between Thu. 23 May to Wed. 29 May Calender.png

USD 0.0696
Multiples of: 1

Mov18 V14 V48 V5 mm125 A0.5 J - 40 C to + 125 CRadialReel Nvd 22 V- 40 C+ 85 CAec - Q200
NV73B2JTTE22


Varistors 1812 22V
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KOA Speer 768
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USD 0.7513
Multiples of: 1

MOV16.5 VDC12 VAC41 V-800 A2.3 J- SMD/SMTReel , Cut Tape1812 (4532 METRIC)NV73PCB Mount22 V- 50 C+ 125 CAEC - Q200
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