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
  
                      
NVD14UCD390


Varistors 390Volt 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 0
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AUD 0.4326
Multiples of: 1

Mov320 V250 V650 V14 mm4.5 kA100 J - 40 C to + 125 CRadialReel Nvd 390 V- 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.

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AUD 0.4347
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.

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AUD 0.4422
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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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.

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AUD 0.4542
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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AUD 0.5129
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.

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AUD 0.5297
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.

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AUD 0.5297
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
NVD10UCD750


Varistors 750Volt 10mm
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AUD 0.5299
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
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.

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AUD 0.5299
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
NVD10UCD780


Varistors 780Volt 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.

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AUD 0.5458
Multiples of: 1

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