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
  
                      
RM20D121KE1IE100


200V 55J 3300pF@1kHz 100V 75V 100A Radial Leaded,P=10mm 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.

Dersonic Availability : 1549
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USD 0.138
Multiples of: 5

   200 V          -   
B72214P2321K502


Varistors 320VAC 10% 14mm MP AdvanceD
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TDK Availability : 1549
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USD 0.4082
Multiples of: 1

Mov420 VDC320 VAC840 V14 mm6 kA150 J445 pF RadialBulk B72214pPcb Mount510 V- 40 C+ 105 C 
FTR14D431KJ


710V 350V 275V 387V~473V Plugin Varistors ROHS
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FTR Availability : 1547
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USD 0.0597
Multiples of: 5

   710 V          387 V ~ 473 V   
820513001


Varistors WE-VD THT LS=7.5mm 38VDC 6J 3140pF
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Wurth Availability : 1545
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USD 0.6039
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   93 V   3140 pF- 40 C to + 125 C         
B72547E3200K000


Varistors 20V 1200A 470000pF SR2K20M474X
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TDK Availability : 1544
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USD 0.9172
Multiples of: 1

MLV26 VDC20 VAC58 V-1.2 kA12 J0.47 uF RadialBulk Leaded SHCVPCB Mount33 V- 55 C+ 125 C 
B72580U1500K062


Varistors 1812 65VDC 8000pF 3000A CT1812K50E2G_U
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TDK Availability : 1544
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USD 1.3915
Multiples of: 1

MLV65 VDC50 VAC130 V-3000 A4000 mJ4000 pF SMD/SMTReel , Cut Tape1812 (4532 METRIC)High SurgePCB Mount73.8 V to 90.2 V- 55 C+ 125 C 
VCAS060330A650RZ


Varistors 0603 30V 0.1J 125pF AECQ200
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Kyocera AVX Availability : 1542
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USD 0.057
Multiples of: 1

MOV30 VDC21 VAC67 V-30 A100 mJ125 pF SMD/SMTReel , Cut Tape1608 (1608 METRIC)VCASSMD/SMT41 V- 55 C+ 125 C 
ERZ-HF2M220D


22 V 5 A Varistor 1 Circuit Surface Mount, MLCV 2-SMD, J-Lead
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Panasonic Availability : 1542
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USD 0.7752
Multiples of: 1

MOV16 V-35 V---- SMD/SMTReel , Cut Tape ERZ - HFPCB Mount23.2 V- 40 C+ 125 C 
Hot B72225S4321K101


EPCOS TDK Varistors Varistor S25K320E4R12
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TDK Availability : 1542
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USD 1.056
Multiples of: 1

MOV420 VDC320 VAC840 V27.5 mm20 kA445 J1600 pF RadialBulk SuperioR S25PCB Mount510 V- 40 C+ 105 C 
V250LA40CP


650V 250V 390V Plugin Varistors ROHS
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Littelfuse Availability : 1162
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USD 0.5594
Multiples of: 1

MOV250 VDC250 VAC650 V20 mm9 kA300 J- RadialBulk C - IIIPCB Mount429 V- 55 C+ 85 C 
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