Metal Oxide Varistors

What are they?
Metal Oxide Varistors, more commonly known as ’MOVs’ are devices that provide excellent transient voltage suppression. They are a type of non-linear device that feature similar characteristics to Zener diodes. They are used to protect vulnerable electronic circuits and components from overvoltage conditions that can cause damage. Any potentially destructive overvoltage energy is dissipated as heat.
Construction:
Metal oxide varistors are typically constructed from zinc oxide and combined with small additions of other metal oxides such as cobalt, magnese or bismuth. These materials are sintered into ceramic casings during manufacture. Although MOVs are available in different formats, they are most commonly radial leaded discs.
Applications:
• Suppression of lightning and other high levels of transient energy
• Low voltage power supplies in DC circuits
• Low voltage power supply in automotive applications
• Protection from internal transients within capacitor discharges, relay switching and inductive load switching

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Description Price Varistor Voltage Maximum AC Voltage Rating Maximum DC Voltage Rating Clamping Voltage Clamping Current Energy Material Series Diameter Maximum Surge Current Capacitance Length Depth Thickness
RS Stock No. 163-3868
Mfr. Part No.820543001
€0.495
Each (On a Reel of 750)
units
47V 30V 38V 93V 10A 12J Metal WE-VD 16.5mm 1000A 6.42nF - - -
RS Stock No. 669-4355
Mfr. Part No.820543001
€0.792
Each (In a Pack of 5)
units
47V 30V 38V 93V 10A 12J Metal WE-VD 16.5mm 1000A 6.42nF - - -
RS Stock No. 762-2111
Mfr. Part No.820999
€191.14
Each
units
- - - - - - Metal - - - - - - -
RS Stock No. 163-3863
Mfr. Part No.820513001
€0.487
Each (On a Reel of 1000)
units
47V 30V 38V 93V 5A 6J Metal WE-VD 12.5mm 500A 3.14nF - - 5mm
RS Stock No. 163-3894
Mfr. Part No.82551200
€0.576
Each (On a Reel of 4000)
units
33V 20V 26V 54V 1A 0.5J - WE-VS - 100A 490pF 3.2mm 1.6mm -
RS Stock No. 163-3880
Mfr. Part No.82537040
€0.455
Each (On a Reel of 10000)
units
8V 4V 5.5V 21V 1A 0.04J - WE-VS - 20A 220pF 1mm 0.5mm -
RS Stock No. 669-4311
Mfr. Part No.820574001
€0.678
Each (In a Pack of 5)
units
68V 40V 56V 135V 2.5A 4.3J Metal WE-VD 9mm 250A 1.12nF - - 5.5mm
RS Stock No. 163-3883
Mfr. Part No.82541110
€0.453
Each (On a Reel of 4000)
units
18V 11V 14V 35V 1A 0.5J - WE-VS - 200A 1.5nF 3.2mm 1.6mm -
RS Stock No. 196-7915
Mfr. Part No.8231726A
€0.305
Each (On a Tape of 20)
units
- 18.5V 26V 50V 16A - Ceramic WE-VE femtoF - - 0.05pF 1mm - 0.6mm
RS Stock No. 196-7910
Mfr. Part No.8231714A
€0.237
Each (On a Reel of 10000)
units
- 10V 14V 45V 16A - Ceramic WE-VE femtoF - - 0.05pF 1mm - 0.6mm
RS Stock No. 163-3892
Mfr. Part No.82550250
€0.484
Each (On a Reel of 4000)
units
39V 25V 30V 65V 1A 0.3J - WE-VS - 100A 310pF 2mm 1.25mm -
RS Stock No. 669-4308
Mfr. Part No.820552501
€0.612
Each (In a Pack of 5)
units
39V 25V 31V 86V 1A 1.2J Metal WE-VD 7.5mm 100A 830pF - - 4.7mm
RS Stock No. 669-4358
Mfr. Part No.820541406
€0.734
Each (In a Pack of 5)
units
22V 14V 18V 43V 10A 5.4J Metal WE-VD 16.5mm 1000A 1.196nF - - 5mm
RS Stock No. 669-4314
Mfr. Part No.820571406
€0.678
Each (In a Pack of 5)
units
22V 14V 18V 43V 2.5A 1.4J Metal WE-VD 9mm 250A 2.39nF - - 4.5mm
RS Stock No. 196-7903
Mfr. Part No.8231606A
€0.322
Each (On a Reel of 5000)
units
- 4.5V 6V 40V 16A - Ceramic WE-VE femtoF - - 0.05pF 1.6mm - 0.9mm
RS Stock No. 163-3860
Mfr. Part No.820441311E
€0.449
Each (On a Reel of 750)
units
200V 130V 170V 340V 50A 70J Metal WE-VD 16.5mm 6000A 840pF - - -
RS Stock No. 669-4373
Mfr. Part No.820423211
€1.202
Each (In a Pack of 5)
units
510V 320V 418V 842V 100A 382J Metal WE-VD 23mm 10000A 760pF - - -
RS Stock No. 669-4389
Mfr. Part No.82537040
€0.488
Each (In a Pack of 5)
units
8V 4V 5.5V 21V 1A 0.04J - WE-VS - 20A 220pF 1mm 0.5mm -
RS Stock No. 669-4409
Mfr. Part No.82536070
€0.444
Each (In a Pack of 5)
units
13.5V 7V 9V 30V 1A 0.1J - WE-VS - 30A 200pF 1.6mm 0.8mm -
RS Stock No. 669-4367
Mfr. Part No.820441311E
€0.694
Each (In a Pack of 5)
units
200V 130V 170V 340V 50A 70J Metal WE-VD 16.5mm 6000A 840pF - - -