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
  
                      
ERZ-V07D820


Var 50VAC/65VDC 1750A 82V Radial Bulk
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Panasonic 87446
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USD 0.0915
Multiples of: 1000

Mov65 V50 V135 V7 mm1.75 kA7 J810 pF- 40 C to + 85 CRadialBulk V 82 V- 40 C+ 85 C 
B72580T500K62


Var MOV 50VAC/65VDC 400A 82V 1812 SMD T/R
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TDK 38283
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USD 0.2868
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MLV65 VDC50 VAC135 V-400 A4.5 J500 pF SMD/SMTReel , Cut Tape1812 (4532 METRIC)Surge ProtectionPCB Mount82 V- 55 C+ 125 C 
VC04AG183R0YATWA


AVX Varistors 18v 3pF Antenna Guard
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Kyocera AVX 37389
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USD 0.0587
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Mlv18 VDC14 VAC42 V 0.1 uA300 Mj3 pF Smd/SmtReel0402 (1005 METRIC)Vc**Ag 25.5 V- 55 C+ 125 C 
820512711


Wurth Electronics Varistors WE-VD 10mm Disc 190pF 2500A 350VDC
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Wurth 37073
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USD 0.4322
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 350 VDC275 VAC710 V10 mm2.5 kA66 J190 pF- 40 C to + 125 CRadialReel We - Vd 430 VDC- 40 C+ 125 C 
07D471K68RV0149


775V 385V 300V 423V~517V SMD,3225 Varistors ROHS
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KNSCHA 37024
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USD 0.0442
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B72500D300H60


ESD Suppressors 0603 30Vdc 10pF CeraDiode CDS3C30GTH
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TDK 29424
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USD 0.0403
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   120 V   10 pF- 40 C To + 85 CSmd/SmtReel0603 (1608 METRIC)Ceradiodes High - Speed   + 85 C 
B72650M0251K072


Varistors 250V 400A 55pF Varistor
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TDK 22221
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USD 0.3277
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 320 VDC250 VAC650 V 400 A8.2 J55 pF  Cut Tape Cu Standard  - 40 C+ 85 C 
CG0603MLA-5.5ME


TVS Varistor - 4VAC/5.5VDC - 30A - 18V - 1 x 0.8 x 0.8 mm - 0603 [1608 Metric] - ...
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Bourns 15452
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USD 0.0267
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 5.5 VDC4 VAC19 V 30 A100 Mj300 pF- 55 C To + 125 CSolder PadReel0603 (1608 METRIC)Mla 8 V To 18 V- 55 C+ 125 C 
AVR-M2012C120MT6AB


Varistors 0805 12V 60A 1000pF
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TDK 751
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USD 0.1043
Multiples of: 5

MLV7.5 VDC-20 V-60 A200 mJ1000 pF SMD/SMTReel , Cut Tape0805 (2012 METRIC)AVRPCB Mount12 V- 40 C+ 125 CAEC - Q200
JVR07N390K


Varistor: metal-oxide; THT; 25VAC; 31VDC; 39V; ±10%; 250A; 2.4J; 20mW
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Joyin 0
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USD 0.0455
Multiples of: 1

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