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. 204-2208
Mfr. Part No.B72220S0271K101
BrandEPCOS
MYR5.138
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. 851-8363
Mfr. Part No.MOV-14D911K
BrandBourns
MYR2.65
Each
units
910V - 745V 1500V 50A 175J MOV-14D 16.5mm - 220pF - - 7.7mm 16.5 (Dia.) x 7.7mm
RS Stock No. 240-185
BrandRS PRO
MYR76.51
Each
units
610V 420V 560V 1050V - 260J High Power 32mm 10000A 1.71nF - - 5.5mm 32 (Dia.) x 5.5mm
RS Stock No. 289-7446
Mfr. Part No.B72205S0350K101
BrandEPCOS
MYR2.28
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
MYR229.52
1 Reel of 1000
Reel(s)
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
MYR2.84
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
MYR0.826
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. 110-1910
Mfr. Part No.ERZV10D330
BrandPanasonic
MYR636.86
1 Bag of 1000
Bag(s)
33V 20V 26V 65V - - ZNR - 1000A 6.3nF - - - 11.5 (Dia.) x 5mm
RS Stock No. 720-9850
Mfr. Part No.ERZV10D330
BrandPanasonic
MYR3.04
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
MYR1.25
Each
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
MYR636.86
1 Bag of 1000
Bag(s)
33V 20V 26V 65V - - ZNR - 1000A 6.3nF - - - 11.5 (Dia.) x 5mm
RS Stock No. 170-2912
Mfr. Part No.B72220P3621K101
BrandEPCOS
MYR7.847
Each (On a Reel of 100)
units
1000V 625V 825V - 10000A 540J S20 23mm - 500pF - - 10.3mm 23 (Dia.) x 10.3mm
RS Stock No. 769-1524
Mfr. Part No.B72214S0321K101
BrandEPCOS
MYR2.755
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
MYR1.452
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. 769-1552
Mfr. Part No.B72220P3621K101
BrandEPCOS
MYR9.82
Each (In a Pack of 10)
units
1000V 625V 825V - 10000A 540J S20 23mm - 500pF - - 10.3mm 23 (Dia.) x 10.3mm
RS Stock No. 785-8720
Mfr. Part No.ERZE05A431
BrandPanasonic
MYR1.191
Each (In a Pack of 25)
units
430V 275V 350V 710V 10A 29J ZNR 7mm 1200A 120pF - - 6.1mm 7 x 6.1mm
RS Stock No. 851-8338
Mfr. Part No.MOV-14D511K
BrandBourns
MYR0.62
Each
units
510V - 415V 845V 50A 125J MOV-14D 16.5mm - 390pF - - 5.5mm 16.5 (Dia.) x 5.5mm
RS Stock No. 720-9908
Mfr. Part No.ERZV10D471
BrandPanasonic
MYR2.683
Each (In a Pack of 10)
units
470V 300V 385V 775V 25A - ZNR 11.5mm 3500A 230pF - - - 11.5 (Dia.) x 6.2mm
RS Stock No. 110-1925
Mfr. Part No.ERZV10D471
BrandPanasonic
MYR643.71
1 Bag of 1000
Bag(s)
470V 300V 385V 775V - - ZNR - 3500A 230pF - - - 11.5 (Dia.) x 6.2mm
RS Stock No. 439-653
Mfr. Part No.ERZV10D471
BrandPanasonic
MYR1.317
Each (In a Pack of 10)
units
470V 300V 385V 775V 25A 85J - 11.5mm 3500A 230pF - - 6.2mm 11.5 (Dia.) x 6.2mm
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