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 Series Diameter Maximum Surge Current Capacitance Length Depth Thickness Dimensions
RS Stock No. 163-3866
Mfr. Part No.820541406
MYR3.571
Each (On a Reel of 750)
units
22V 14V 18V 43V 10A 5.4J WE-VD 16.5mm 1000A 1.196nF - - 5mm 16.5 (Dia.) x 5mm
RS Stock No. 669-4358
Mfr. Part No.820541406
MYR5.066
Each (In a Pack of 5)
units
22V 14V 18V 43V 10A 5.4J WE-VD 16.5mm 1000A 1.196nF - - 5mm 16.5 (Dia.) x 5mm
RS Stock No. 669-4370
Mfr. Part No.820422711
MYR4.078
Each (In a Pack of 5)
units
430V 275V 350V 710V 100A 303J WE-VD 23mm 10000A 860pF - - 5.7mm 23 (Dia.) x 5.7mm
RS Stock No. 163-3859
Mfr. Part No.820422711
MYR4.944
Each (On a Reel of 500)
units
430V 275V 350V 710V 100A 303J WE-VD 23mm 10000A 860pF - - 5.7mm 23 (Dia.) x 5.7mm
RS Stock No. 669-4428
Mfr. Part No.82550200
MYR3.312
Each (In a Pack of 5)
units
33V 20V 26V 54V 1A 0.3J WE-VS - 100A 350pF 2mm 1.25mm - -
RS Stock No. 163-3891
Mfr. Part No.82550200
MYR15,277.78
1 Reel of 4000
Reel(s)
33V 20V 26V 54V 1A 0.3J WE-VS - 100A 350pF 2mm 1.25mm - -
RS Stock No. 163-3879
Mfr. Part No.82536140
MYR15,277.78
1 Reel of 4000
Reel(s)
25V 14V 18V 45V 1A 0.1J WE-VS - 30A 100pF 1.6mm 0.8mm - -
RS Stock No. 669-4308
Mfr. Part No.820552501
MYR2.24
Each (In a Pack of 5)
units
39V 25V 31V 86V 1A 1.2J WE-VD 7.5mm 100A 830pF - - 4.7mm 7.5 (Dia.) x 4.7mm
RS Stock No. 172-5217
Mfr. Part No.820552501
MYR2.893
Each (On a Reel of 1500)
units
39V 25V 31V 86V 1A 1.2J WE-VD 7.5mm 100A 830pF - - 4.7mm 7.5 (Dia.) x 4.7mm
RS Stock No. 669-4406
Mfr. Part No.82536140
MYR2.802
Each (In a Pack of 5)
units
25V 14V 18V 45V 1A 0.1J WE-VS - 30A 100pF 1.6mm 0.8mm - -
RS Stock No. 163-3870
Mfr. Part No.820571406
MYR4,733.57
1 Reel of 1500
Reel(s)
22V 14V 18V 43V 2.5A 1.4J WE-VD 9mm 250A 2.39nF - - 4.5mm 9 (Dia.) x 4.5mm
RS Stock No. 669-4314
Mfr. Part No.820571406
MYR2.106
Each (In a Pack of 5)
units
22V 14V 18V 43V 2.5A 1.4J WE-VD 9mm 250A 2.39nF - - 4.5mm 9 (Dia.) x 4.5mm
RS Stock No. 669-4305
Mfr. Part No.820551311
MYR2.276
Each (In a Pack of 5)
units
200V 130V 170V 355V 5A 7.1J WE-VD 7.5mm 400A 135pF - - - -
RS Stock No. 669-4351
Mfr. Part No.820542501
MYR3.14
Each (In a Pack of 5)
units
39V 25V 31V 77V 10A 9.4J WE-VD 16.5mm 1000A 7.62nF - - 5.2mm 16.5 (Dia.) x 5.2mm
RS Stock No. 163-3871
Mfr. Part No.820572501
MYR4,733.57
1 Reel of 1500
Reel(s)
39V 25V 31V 77V 2.5A 2.4J WE-VD 9mm 250A 1.82nF - - 4.7mm 9 (Dia.) x 4.7mm
RS Stock No. 669-4430
Mfr. Part No.82531040
MYR4.016
Each (In a Pack of 5)
units
8V 4V 5.5V 17V 10A 0.4J WE-VS - 150A 3.6nF 3.2mm 1.6mm - -
RS Stock No. 162-1346
Mfr. Part No.820423211
MYR2.892
Each (On a Reel of 500)
units
510V 320V 418V 842V 100A 382J WE-VD 23mm 10000A 760pF - - - -
RS Stock No. 669-4434
Mfr. Part No.82541110
MYR4.012
Each (In a Pack of 5)
units
18V 11V 14V 35V 1A 0.5J WE-VS - 200A 1.5nF 3.2mm 1.6mm - -
RS Stock No. 163-3862
Mfr. Part No.820512501
MYR3,418.76
1 Reel of 1000
Reel(s)
39V 25V 31V 77V 5A 4.7J WE-VD 12.5mm 500A 3.6nF - - 5.1mm 12.5 (Dia.) x 5.1mm
RS Stock No. 163-3877
Mfr. Part No.82536070
MYR15,277.78
1 Reel of 4000
Reel(s)
13.5V 7V 9V 30V 1A 0.1J WE-VS - 30A 200pF 1.6mm 0.8mm - -