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. 240-179
BrandRS PRO
PHP1,071.65
Each
units
400V 275V 370V 680V - 180J High Power 32mm 10000A 1.9nF - - 4mm 32 (Dia.) x 4mm
RS Stock No. 240-185
BrandRS PRO
PHP1,232.01
Each
units
610V 420V 560V 1050V - 260J High Power 32mm 10000A 1.71nF - - 5.5mm 32 (Dia.) x 5.5mm
RS Stock No. 240-236
BrandRS PRO
PHP2,151.56
Each
units
- 275V 365V - - 360J High Power - - - 61mm 50mm 40mm 61 x 50 x 40mm
RS Stock No. 240-208
BrandRS PRO
PHP899.86
Each
units
710V 484V 640V 1200V - 320J High Power 32mm 10000A 1.62nF - - 6mm 32 (Dia.) x 6mm
RS Stock No. 240-157
BrandRS PRO
PHP579.16
Each
units
710V 484V 640V 1200V - 380J High Power 36mm 12000A 1.94nF - - 6mm 36 (Dia.) x 6mm
RS Stock No. 240-242
BrandRS PRO
PHP2,532.08
Each
units
- 460V 605V - - 500J High Power - - - 61mm 50mm 40mm 61 x 50 x 40mm
RS Stock No. 240-129
BrandRS PRO
PHP713.14
Each
units
400V 275V 370V 680V - 215J High Power 36mm 12000A 2.28nF - - 4mm 36 (Dia.) x 4mm
RS Stock No. 240-113
BrandRS PRO
PHP682.81
Each
units
360V 250V 330V 620V - 190J High Power 36mm 12000A 3.085nF - - 4mm 36 (Dia.) x 4mm
RS Stock No. 240-141
BrandRS PRO
PHP755.68
Each
units
670V 460V 615V 1140V - 350J High Power 36mm 12000A 2.05nF - - 6mm 36 (Dia.) x 6mm
RS Stock No. 538-0648
Mfr. Part No.VDRS10P250BSE
PHP35.37
Each
units
390V 250V 320V 650V 25A 58J VDR 13.5mm 2500A 300pF - 5.4mm 8mm 13.5 (Dia.) x 8mm
RS Stock No. 204-2208
Mfr. Part No.B72220S0271K101
BrandEPCOS
PHP14.524
Each (In a Pack of 5)
units
430V 275V 350V 710V 100A 151J B72220 21.5mm 8000A 630pF - - 5.4mm 21.5 (Dia.) x 5.4mm
RS Stock No. 289-7272
Mfr. Part No.B72220S0151K101
BrandEPCOS
PHP40.562
Each (In a Pack of 5)
units
240V 150V 200V 395V 100A 85J Standard 21.5mm 8000A 1.16nF - - 4.9mm 21.5 (Dia.) x 4.9mm
RS Stock No. 106-9900
Mfr. Part No.ERZV14D330
BrandPanasonic
PHP8.93
Each (In a Bag of 1000)
units
33V 20V 26V 65V - - ZNR - 2000A 12.2nF - - - 15.5 (Dia.) x 5mm
RS Stock No. 110-1931
Mfr. Part No.ERZV14D330
BrandPanasonic
PHP8.93
Each (In a Bag of 1000)
units
33V 20V 26V 65V - - ZNR - 2000A 12.2nF - - - 15.5 (Dia.) x 5mm
RS Stock No. 720-9923
Mfr. Part No.ERZV14D330
BrandPanasonic
PHP25.166
Each (In a Pack of 5)
units
33V 20V 26V 65V 10A 9.5J ZNR 15.5mm 2000A 12.2nF - - 5mm 15.5 (Dia.) x 5mm
RS Stock No. 106-9873
Mfr. Part No.ERZV07D201
BrandPanasonic
PHP3.528
Each (In a Bag of 1000)
units
200V 130V 170V 340V - - ZNR - 1750A 200pF - - - 8.5 (Dia.) x 4.4mm
RS Stock No. 110-1903
Mfr. Part No.ERZV07D201
BrandPanasonic
PHP3.528
Each (In a Bag of 1000)
units
200V 130V 170V 340V - - ZNR - 1750A 200pF - - - 8.5 (Dia.) x 4.4mm
RS Stock No. 720-9822
Mfr. Part No.ERZV07D201
BrandPanasonic
PHP10.82
Each (In a Pack of 10)
units
200V 130V 170V 340V 10A 17.5J ZNR 8.5mm 1750A 200pF - - 4.4mm 8.5 (Dia.) x 4.4mm
RS Stock No. 289-7317
Mfr. Part No.B72220S0301K101
BrandEPCOS
PHP37.638
Each (In a Pack of 5)
units
470V 300V 385V 775V 100A 173J Standard 21.5mm 8000A 580pF - - 5.6mm 21.5 (Dia.) x 5.6mm
RS Stock No. 785-8960
Mfr. Part No.ERZE14A431
BrandPanasonic
PHP41.14
Each (In a Pack of 5)
units
430V 275V 350V 710V 100A 303J ZNR 16.5mm 10000A 800pF - - 6.2mm 16.5 x 6.2mm
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