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
  
                      
NVD14UCD220


Varistors 220Volt 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 Availability : 0
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USD 0.2777
Multiples of: 1

Mov180 V140 V360 V14 mm5 kA55 J - 40 C to + 125 CRadialReel Nvd 220 V- 40 C+ 85 CAec - Q200
NVD14UCD270


KOA Speer Varistors 270Volt 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 Availability : 0
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USD 0.2777
Multiples of: 1

Mov225 VDC175 VAC455 V14 mm5 kA70 J-- 40 C to + 125 CRadialReel Nvd 270 VDC- 40 C+ 85 CAec - Q200
NVD10UCD470


Varistors 470Volt 10mm
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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 Availability : 0
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USD 0.2826
Multiples of: 1

Mov385 V300 V775 V10 mm2.5 kA60 J - 40 C to + 125 CRadialReel Nvd 470 V- 40 C+ 85 CAec - Q200
NVD14UCD330


Varistors 330Volt 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 Availability : 0
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USD 0.2874
Multiples of: 1

Mov270 V210 V545 V14 mm4.5 kA80 J - 40 C to + 125 CRadialReel Nvd 330 V- 40 C+ 85 CAec - Q200
NV73A2ATTE39


Varistors 0805 39V
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KOA Speer Availability : 0
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USD 0.2952
Multiples of: 1

MOV31 VDC25 VAC72 V 25 A140 mJ- SMD/SMTReel , Cut Tape0805 (2012 METRIC)NV73PCB Mount - 40 C+ 85 CAEC - Q200
NV73A2ETTE56


Varistors 1210 56V
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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 Availability : 0
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USD 0.3334
Multiples of: 1

Mov45 VDC35 VAC90 V 400 A2 J- Smd/SmtCut Tape1210 (3225 METRIC)Nv73  - 50 C+ 125 CAec - Q200
NVD10UCD1100


Varistors 1100Volt 10mm
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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 Availability : 0
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USD 0.3443
Multiples of: 1

Mov895 V680 V1815 V10 mm2.5 kA110 J - 40 C to + 125 CRadialReel Nvd 1100 V- 40 C+ 85 CAec - Q200
NVD10UCD1800


Varistors 1800Volt 10mm
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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 Availability : 0
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USD 0.3443
Multiples of: 1

Mov1 kV1 kV2.97 kV10 mm2.5 kA183 J - 40 C to + 125 CRadialReel Nvd 1800 V- 40 C+ 85 CAec - Q200
NVD10UCD620


Varistors 620Volt 10mm
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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 Availability : 0
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USD 0.3444
Multiples of: 1

Mov505 V380 V1.025 kV10 mm2.5 kA67 J - 40 C to + 125 CRadialReel Nvd 620 V- 40 C+ 85 CAec - Q200
NVD10UCD750


Varistors 750Volt 10mm
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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 Availability : 0
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USD 0.3444
Multiples of: 4000

Mov615 V460 V1.24 kV10 mm2.5 kA70 J - 40 C to + 125 CRadialReel Nvd 750 V- 40 C+ 85 CAec - Q200
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