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
  
                      
NVD05UCD068


Varistors 68Volt 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 0
6 to 16 Weeks Calender.png

USD 0.0776
Multiples of: 1

Mov56 V40 V150 V5 mm125 A1.6 J - 40 C to + 125 CRadialReel Nvd 68 V- 40 C+ 85 CAec - Q200
NVD05UCD100


Varistors 100Volt 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 0
6 to 16 Weeks Calender.png

USD 0.0776
Multiples of: 1

Mov85 V60 V175 V5 mm600 A3 J - 40 C to + 125 CRadialReel Nvd 100 V- 40 C+ 85 CAec - Q200
NVD05UCD039


Varistors 39Volt 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 0
6 to 16 Weeks Calender.png

USD 0.0776
Multiples of: 1

Mov31 V25 V86 V5 mm125 A0.9 J - 40 C to + 125 CRadialReel Nvd 39 V- 40 C+ 85 CAec - Q200
NVD05UCD240


Varistors 240Volt 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 0
6 to 16 Weeks Calender.png

USD 0.0776
Multiples of: 1

Mov200 V150 V415 V5 mm600 A7.5 J - 40 C to + 125 CRadialReel Nvd 240 V- 40 C+ 85 CAec - Q200
NVD05UCD270


Varistors 270Volt 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 0
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USD 0.0776
Multiples of: 1

Mov225 V175 V475 V5 mm600 A8 J - 40 C to + 125 CRadialReel Nvd 270 V- 40 C+ 85 CAec - Q200
NVD07UCD430


Varistors 430Volt 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 0
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USD 0.0948
Multiples of: 1

Mov350 V275 V710 V7 mm1.25 kA27.5 J - 40 C to + 125 CRadialReel Nvd 430 V- 40 C+ 85 CAec - Q200
NVD07UCD330


Varistors 330Volt 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 0
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USD 0.0987
Multiples of: 1

Mov270 V210 V545 V7 mm1.25 kA20 J - 40 C to + 125 CRadialReel Nvd 330 V- 40 C+ 85 CAec - Q200
NVD05UCD390


Varistors 390Volt 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 0
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USD 0.1045
Multiples of: 1

Mov320 V250 V675 V5 mm600 A12 J - 40 C to + 125 CRadialReel Nvd 390 V- 40 C+ 85 CAec - Q200
NVD05UCD330


Varistors 330Volt 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 0
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USD 0.1222
Multiples of: 1

Mov270 V210 V570 V5 mm600 A9.5 J - 40 C to + 125 CRadialReel Nvd 330 V- 40 C+ 85 CAec - Q200
NVD05UCD360


Varistors 360Volt 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 0
6 to 16 Weeks Calender.png

USD 0.1222
Multiples of: 1

Mov300 V230 V620 V5 mm600 A11 J - 40 C to + 125 CRadialReel Nvd 360 V- 40 C+ 85 CAec - Q200
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