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. 669-4358
Mfr. Part No.820541406
MYR3.15
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. 163-3866
Mfr. Part No.820541406
MYR2.04
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. 163-3859
Mfr. Part No.820422711
MYR2.84
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. 669-4370
Mfr. Part No.820422711
MYR4.722
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. 669-4406
Mfr. Part No.82536140
MYR2.562
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. 669-4428
Mfr. Part No.82550200
MYR2.70
Each (In a Pack of 5)
units
33V 20V 26V 54V 1A 0.3J WE-VS - 100A 350pF 2mm 1.25mm - -
RS Stock No. 172-5217
Mfr. Part No.820552501
MYR1.836
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. 669-4308
Mfr. Part No.820552501
MYR2.48
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. 163-3891
Mfr. Part No.82550200
MYR2.423
Each (On a Reel of 4000)
units
33V 20V 26V 54V 1A 0.3J WE-VS - 100A 350pF 2mm 1.25mm - -
RS Stock No. 163-3879
Mfr. Part No.82536140
MYR2.423
Each (On a Reel of 4000)
units
25V 14V 18V 45V 1A 0.1J WE-VS - 30A 100pF 1.6mm 0.8mm - -
RS Stock No. 762-2111
Mfr. Part No.820999
MYR718.31
Each
units
- - - - - - - - - - - - - -
RS Stock No. 669-4456
Mfr. Part No.82531400
MYR3.672
Each (In a Pack of 5)
units
70V 40V 56V 120V 10A 1J WE-VS - 200A 180pF 3.2mm 1.6mm - -
RS Stock No. 163-3894
Mfr. Part No.82551200
MYR2.754
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. 196-7912
Mfr. Part No.8231626A
MYR1.921
Each (On a Reel of 5000)
units
- 18.5V 14V 45V 16A - WE-VE femtoF - - 0.05pF - - - -
RS Stock No. 196-7908
Mfr. Part No.8231614A
MYR1.27
Each (On a Reel of 5000)
units
- 10V 14V 45V 16A - WE-VE femtoF - - 0.05pF - - - -
RS Stock No. 163-3880
Mfr. Part No.82537040
MYR1.907
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. 163-3871
Mfr. Part No.820572501
MYR1.997
Each (On a Reel of 1500)
units
39V 25V 31V 77V 2.5A 2.4J WE-VD 9mm 250A 1.82nF - - 4.7mm 9 (Dia.) x 4.7mm
RS Stock No. 669-4418
Mfr. Part No.82550040
MYR2.562
Each (In a Pack of 5)
units
8V 4V 5.5V 16V 1A 0.1J WE-VS - 80A 1.6nF 2mm 1.25mm - -
RS Stock No. 196-7910
Mfr. Part No.8231714A
MYR1.415
Each (On a Reel of 10000)
units
- 10V 14V 45V 16A - WE-VE femtoF - - 0.05pF - - - -
RS Stock No. 669-4367
Mfr. Part No.820441311E
MYR3.48
Each (In a Pack of 5)
units
200V 130V 170V 340V 50A 70J WE-VD 16.5mm 6000A 840pF - - - -