About Varistors

Semitec 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
  
                      
Z7D180


Varistors 18V 250A 8.5mm
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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.

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USD 0.2122
Multiples of: 1

 14 VDC11 VAC1.65 kV22.5 mm6.5 kA1.1 J450 pF RadialBulk Z7DPCB Mount - 40 C+ 85 C 
Z7D101


Varistors 100V 1250A 8.5mm
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USD 0.2122
Multiples of: 1

 85 VDC60 VAC135 V12.5 mm500 A8.5 J2800 pF RadialBulk Z7DPCB Mount - 40 C+ 85 C 
Z10D271


Varistors 270V 2500A 12.5mm
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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.

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USD 0.2871
Multiples of: 1

MOV225 VDC175 VAC570 V12.5 mm10 kA49 J1900 pF RadialBulk Z10DPCB Mount270 V- 40 C+ 85 C 
Z10D121


Semitec Varistors 120V 2500A 12.5mm
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USD 0.2935
Multiples of: 1

 100 VDC75 VAC53 V16 mm1 kA20 J0.016 uF- 40 C to + 85 C Bulk Z10d  - 40 C+ 85 C 
Z10D361


Varistors 360V 2500A 12.5mm
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USD 0.2935
Multiples of: 1

 300 V230 V810 V 10 kA65 J1500 pF- 40 C to + 85 C Bulk Z10d  - 40 C+ 85 C 
Z10D561


Varistors 560V 2500A 12.5mm
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USD 0.2935
Multiples of: 1

 450 VDC350 VAC360 V8.5 mm1.25 kA92 J190 pF RadialBulk Z10DPCB Mount - 40 C+ 85 C 
Z10D470


Varistors 47V 500A 12.5mm
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USD 0.2935
Multiples of: 1

 38 V30 V165 V 1.25 kA6.8 J700 pF- 40 C to + 85 C Bulk Z10d  - 40 C+ 85 C 
Z10D270


Varistors 27V 500A 12.5mm
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USD 0.2935
Multiples of: 1

 22 V17 V465 V 10 kA3.9 J2200 pF- 40 C to + 85 C Bulk Z10d  - 40 C+ 85 C 
Z10D241


Varistors 240V 2500A 12.5mm
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USD 0.2935
Multiples of: 1

MOV200 VDC150 VAC380 V12.5 mm10 kA42 J3300 pF RadialBulk Z10DPCB Mount240 V- 40 C+ 85 C 
Z10D201


Varistors 200V 2500A 12.5mm
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USD 0.3121
Multiples of: 1

MOV170 VDC130 VAC93 V12.5 mm1 kA35 J6750 pF RadialBulk Z10DPCB Mount200 V- 40 C+ 85 C 
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