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. 240-185
BrandRS PRO
MYR109.73
Each
units
610V 420V 560V 1050V - 260J High Power 32mm 10000A 1.71nF - - 5.5mm 32 (Dia.) x 5.5mm
RS Stock No. 240-157
BrandRS PRO
MYR54.30
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
MYR256.27
Each
units
- 460V 605V - - 500J High Power - - - 61mm 50mm 40mm 61 x 50 x 40mm
RS Stock No. 240-129
BrandRS PRO
MYR70.57
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
MYR39.92
Each
units
360V 250V 330V 620V - 190J High Power 36mm 12000A 3.085nF - - 4mm 36 (Dia.) x 4mm
RS Stock No. 240-208
BrandRS PRO
MYR89.05
Each
units
710V 484V 640V 1200V - 320J High Power 32mm 10000A 1.62nF - - 6mm 32 (Dia.) x 6mm
RS Stock No. 240-236
BrandRS PRO
MYR212.92
Each
units
- 275V 365V - - 360J High Power - - - 61mm 50mm 40mm 61 x 50 x 40mm
RS Stock No. 240-141
BrandRS PRO
MYR67.30
Each
units
670V 460V 615V 1140V - 350J High Power 36mm 12000A 2.05nF - - 6mm 36 (Dia.) x 6mm
RS Stock No. 240-179
BrandRS PRO
MYR91.86
Each
units
400V 275V 370V 680V - 180J High Power 32mm 10000A 1.9nF - - 4mm 32 (Dia.) x 4mm
RS Stock No. 204-2208
Mfr. Part No.B72220S0271K101
BrandEPCOS
MYR1.226
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. 289-7446
Mfr. Part No.B72205S0350K101
BrandEPCOS
MYR1.636
Each (In a Pack of 5)
units
56V 35V 45V 110V 1A 1.1J Standard 7mm 100A 620pF - - 3.7mm 7 (Dia.) x 3.7mm
RS Stock No. 162-1436
Mfr. Part No.B72205S0350K101
BrandEPCOS
MYR0.44
Each (On a Reel of 1000)
units
56V 35V 45V 110V 1A 1.1J Standard 7mm 100A 620pF - - 3.7mm 7 (Dia.) x 3.7mm
RS Stock No. 851-8417
Mfr. Part No.MOV-20D911K
BrandBourns
MYR3.92
Each
units
910V - 745V 1500V 100A 282J MOV-20D 23mm - 440pF - - 8.2mm 23 (Dia.) x 8.2mm
RS Stock No. 173-9269
Mfr. Part No.MOV-14D431K
BrandBourns
MYR0.703
Each (In a Bag of 600)
units
430V - 350V 710V 50A 115J MOV-14D 16.5mm - 460pF - - 5.2mm 16.5 (Dia.) x 5.2mm
RS Stock No. 106-9880
Mfr. Part No.ERZV10D330
BrandPanasonic
MYR1.055
Each (In a Bag of 1000)
units
33V 20V 26V 65V - - ZNR - 1000A 6.3nF - - - 11.5 (Dia.) x 5mm
RS Stock No. 110-1910
Mfr. Part No.ERZV10D330
BrandPanasonic
MYR1.055
Each (In a Bag of 1000)
units
33V 20V 26V 65V - - ZNR - 1000A 6.3nF - - - 11.5 (Dia.) x 5mm
RS Stock No. 769-1524
Mfr. Part No.B72214S0321K101
BrandEPCOS
MYR1.52
Each (In a Pack of 10)
units
510V 320V 420V - 4500A 84J StandarD 15.5mm - 280pF - - 5.4mm 15.5 (Dia.) x 5.4mm
RS Stock No. 170-2906
Mfr. Part No.B72214S0321K101
BrandEPCOS
MYR1.026
Each (On a Reel of 250)
units
510V 320V 420V - 4500A 84J StandarD 15.5mm - 280pF - - 5.4mm 15.5 (Dia.) x 5.4mm
RS Stock No. 720-9850
Mfr. Part No.ERZV10D330
BrandPanasonic
MYR1.49
Each (In a Pack of 10)
units
33V 20V 26V 65V 5A - ZNR 11.5mm 1000A 6.3nF - - - 11.5 (Dia.) x 5mm
RS Stock No. 851-8322
Mfr. Part No.MOV-14D431K
BrandBourns
MYR1.95
Each
units
430V - 350V 710V 50A 115J MOV-14D 16.5mm - 460pF - - 5.2mm 16.5 (Dia.) x 5.2mm
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