About Varistors

Sembo 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
  
                      
10D820K


Varistors Through Hole RoHS
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SEMBO Availability : 4
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USD 0.0614
Multiples of: 5

   135 V          74 V ~ 90 V   
20D820K


135V 65V 50V 74V~90V Plugin Varistors ROHS
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SEMBO Availability : 2
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USD 0.1918
Multiples of: 1

   135 V          74 V ~ 90 V   
07D470K


93V 3.1J 1100pF@1kHz 38V 30V 42V~52V 250A Radial Leaded Varistors ROHS
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SEMBO Availability : 0
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USD 0.0331
Multiples of: 10

                  
07D511K


845V 30J 100pF@1kHz 415V 320V 459V~561V 1.2kA Radial Leaded Varistors ROHS
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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.

SEMBO Availability : 0
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USD 0.0436
Multiples of: 10

                  
10D220K


Varistors Through Hole RoHS
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SEMBO Availability : 0
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USD 0.0659
Multiples of: 5

   43 V          22 V   
14D390K


77V 8.6J 5100pF@1kHz 31V 25V 35V~43V 1kA Radial Leaded Varistors ROHS
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SEMBO Availability : 0
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USD 0.1293
Multiples of: 1

                  
14D470K


93V 10J 4300pF@1kHz 38V 30V 42V~52V 1kA Radial Leaded Varistors ROHS
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SEMBO Availability : 0
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USD 0.1418
Multiples of: 5

                  
14D431K


710V 350V 275V 387V~473V Plugin Varistors ROHS
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SEMBO Availability : 0
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USD 0.1451
Multiples of: 5

   710 V          387 V ~ 473 V   
14D681K


Varistors Through Hole RoHS
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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.

SEMBO Availability : 0
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USD 0.1777
Multiples of: 1

   1.12 kV          612 V ~ 748 V   
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