About Varistors

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
  
                      
621KD05


1.025kV 505V 385V 620V 05D Varistors ROHS
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Liown Availability : 252
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USD 0.0237
Multiples of: 10

   1.025 kV          620 V   
Hot MOV-14D680K


Varistors 68volts 14mm
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Bourns Availability : 250
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USD 0.0261
Multiples of: 1

MOV68 VDC40 VAC135 V14 mm1 kA14 J2900 pF RadialBulk MOV - 14DxxxKPCB Mount68 V- 40 C+ 85 C 
B72207S0200K101


Varistors 20volts 250A
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TDK Availability : 250
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USD 0.0559
Multiples of: 5

Mov26 VDC20 VAC65 V7 mm250 A1.3 J1600 pF RadialBulk Standardd 33 V- 40 C+ 105 C 
201KD05J


355V 170V 130V 200V 05D Varistors ROHS
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Liown Availability : 249
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USD 0.0237
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   355 V          200 V   
FNR14K471TATN1NN


Plugin Varistors ROHS
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Fenghua Advanced Availability : 249
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USD 0.0831
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V300SM20


Varistors SURFACE MOUNT SM20 VARISTORS
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Littelfuse Availability : 249
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USD 2.9198
Multiples of: 1

Mov405 V300 V775 V 6.5 kA165 J800 pF- 40 C to + 85 CSmd/SmtReel Sm20 517 V- 40 C+ 85 C 
Hot MOV-20D680K


Bourns Varistors 68volts 20mm
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Bourns Availability : 248
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USD 0.0573
Multiples of: 1

MOV68 VDC40 VAC135 V20 mm1 kA14 J2900 pF RadialBulk MOV - 20DxxxKPCB Mount68 V- 40 C+ 85 C 
B72210S0131K101


Varistors 130volts 2500A
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TDK Availability : 248
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USD 0.1222
Multiples of: 1

Mov170 VDC130 VAC340 V10 mm2.5 kA19 J400 pF RadialBulk Standardd 205 V- 40 C+ 105 C 
20D431K


Varistors 350V 710V 6.5KA Through Hole RoHS
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Hongzhi Availability : 248
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USD 0.123
Multiples of: 5

   710 V          387 V ~ 473 V   
TMOV14RP625E


Varistors THERMALLY PROTECTED VARISTOR 14MM
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Littelfuse Availability : 248
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USD 1.2995
Multiples of: 1

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