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
  
                      
MOVTP20V275T


Varistors MOVTP, 20 mm, 275 Vac
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Eaton Availability : 591
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USD 1.2479
Multiples of: 1

MOV350 VDC275 VAC710 V23.5 mm10000 A270 J- Through HoleBulk MOVTPThrough Hole473 V- 40 C+ 105 C 
Hot V5.5MLA1206NH


Littelfuse Varistors 5.5V 150A 3500pF
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Littelfuse Availability : 590
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USD 0.3752
Multiples of: 1

Mlv5.5 VDC4 VAC17.5 V 150 A0.4 J3500 pF- 55 C to + 125 CSmd/SmtReel1206 (3216 METRIC)Mla 7.1 VDC- 55 C+ 125 C 
B72225S4251K101


Varistors Varistor S25K250E4R12
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TDK Availability : 590
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USD 2.2656
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  250 VAC      RadialBulk Superior S25Pcb Mount - 40 C+ 105 C 
MG042L18V500DP


Varistors 14VAC 18VDC 0.02J 40pF 28V 50V
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Kyocera AVX Availability : 588
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USD 0.3021
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 18 V14 V50 V 15 A0.02 J40 pF- 55 C to + 125 CSmd/SmtReel0405 (1013 METRIC)Mg 28 V- 55 C+ 125 C 
V20E385PL1B7


Varistors 385V 20mm Epoxy UltraMOV
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Littelfuse Availability : 587
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USD 0.303
Multiples of: 1

Mov505 VDC385 VAC1.025 kV20 mm10 kA300 J700 pF RadialBulk Ultramov 558 v to 682 V- 55 C+ 85 C 
NVD14UCD033


Varistors 33Volt 14mm
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KOA Speer Availability : 586
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USD 0.2775
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Mov26 V20 V65 V14 mm1 kA7.9 J - 40 C to + 125 CRadialReel Nvd 33 V- 40 C+ 85 CAec - Q200
VGAS222016Y400DP


Varistors 11VAC 16VDC 7.2J 13000pF 24.5 V 42V
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Kyocera AVX Availability : 586
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USD 0.9716
Multiples of: 1

Mlv16 VDC11 VAC42 V-1500 A7.2 J13000 pF- 55 C to + 125 CSmd/SmtReel2220 (5750 METRIC)Vgas 24.5 V- 55 C+ 125 C 
221KD07


360V 0.25W 230pF@1kHz 180V 14J 140V 220V 1.2kA Radial Leaded Varistors ROHS
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Liown Availability : 585
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USD 0.0185
Multiples of: 20

   360 V          220 V   
Hot V420LA10P


Varistors 420V 140pF
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Littelfuse Availability : 585
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USD 0.0832
Multiples of: 1

   1.12 kV10 mm  140 pF- 55 C to + 85 C Bulk   680 V   
FTR14D241KJ


395V 200V 150V 216V~264V Plugin Varistors ROHS
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FTR Availability : 582
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USD 0.0535
Multiples of: 5

   395 V          216 V ~ 264 V   
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