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
R 10.16
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. 851-8335
Mfr. Part No.MOV-14D471K
BrandBourns
R 19.33
Each
units
470V - 385V 775V 50A 125J MOV-14D 16.5mm - 430pF - - 5.4mm 16.5 (Dia.) x 5.4mm
RS stock no. 106-9856
Mfr. Part No.ERZV05D270
BrandPanasonic
R 1,300.03
1 Bag of 1000
Bag(s)
27V 17V 22V 60V - - ZNR - 250A 1.45nF - - - 7 (Dia.) x 4.5mm
RS stock no. 289-7301
Mfr. Part No.B72220S0251K101
BrandEPCOS
R 13.668
Each (In a Pack of 5)
units
390V 250V 320V 650V 100A 140J Standard 21.5mm 8000A 700pF - - 5.3mm 21.5 (Dia.) x 5.3mm
RS stock no. 720-9728
Mfr. Part No.ERZV05D270
BrandPanasonic
R 2.659
Each (In a Pack of 10)
units
27V 17V 22V 60V 1A 0.9J ZNR 7mm 250A 1.45nF - - 4.5mm 7 (Dia.) x 4.5mm
RS stock no. 827-4335
Mfr. Part No.LSP05277P
BrandLittelfuse
R 221.57
Each
units
277V 320V - - - - LSP05 - 10000A - 64mm 48mm 30mm 64 x 48 x 30mm
RS stock no. 720-9752
Mfr. Part No.ERZV05D121
BrandPanasonic
R 4.706
Each (In a Pack of 10)
units
120V 75V 100V 210V 5A 5J ZNR 7mm 800A 350pF - - 4.5mm 7 (Dia.) x 4.5mm
RS stock no. 173-2655
Mfr. Part No.LSP05277P
BrandLittelfuse
R 206.486
Each (In a Bag of 8)
units
277V 320V - - - - LSP05 - 10000A - 64mm 48mm 30mm 64 x 48 x 30mm
RS stock no. 289-7187
Mfr. Part No.B72214S0271K101
BrandEPCOS
R 4.03
Each (In a Pack of 5)
units
430V 275V 350V 710V 50A 71J Standard 15.5mm 4500A 440pF - - 5mm 15.5 (Dia.) x 5mm
RS stock no. 289-7288
Mfr. Part No.B72220S0171K101
BrandEPCOS
R 13.618
Each (In a Pack of 5)
units
270V 175V 225V 455V 100A 98J Standard 21.5mm 8000A 1nF - - 5mm 21.5 (Dia.) x 5mm
RS stock no. 800-7125
Mfr. Part No.V14MLA0805H
BrandLittelfuse
R 6.184
Each (In a Pack of 10)
units
20.3V 10V 14V 32V 1A 0.3J ML - 120A 560pF 2.01mm 1.1mm 1.25mm 2.01 x 1.25 x 1.1mm
RS stock no. 170-2869
Mfr. Part No.B72220S0171K101
BrandEPCOS
R 7.089
Each (On a Reel of 250)
units
270V 175V 225V 455V 100A 98J Standard 21.5mm 8000A 1nF - - 5mm 21.5 (Dia.) x 5mm
RS stock no. 171-0015
Mfr. Part No.V14MLA0805H
BrandLittelfuse
R 7,090.55
1 Reel of 2500
Reel(s)
20.3V 10V 14V 32V 1A 0.3J ML - 120A 560pF 2.01mm 1.1mm 1.25mm 2.01 x 1.25 x 1.1mm
RS stock no. 851-8322
Mfr. Part No.MOV-14D431K
BrandBourns
R 19.08
Each
units
430V - 350V 710V 50A 115J MOV-14D 16.5mm - 460pF - - 5.2mm 16.5 (Dia.) x 5.2mm
RS stock no. 170-9993
Mfr. Part No.V68ZA10P
BrandLittelfuse
R 3.406
Each (In a Bag of 700)
units
61 → 75V 40V 56V 135V 10A 13J ZA 17mm 1000A 3.87nF - - 5.6mm 17 (Dia.) x 5.6mm
RS stock no. 173-9269
Mfr. Part No.MOV-14D431K
BrandBourns
R 2.414
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. 769-2025
Mfr. Part No.B72660M0271K072
BrandEPCOS
R 6.834
Each (In a Pack of 5)
units
430V 275Vrms 350V 710V 10A - CU - 1200A 95pF 10.2mm 8mm 4.5mm 10.2 x 8 x 4.5mm
RS stock no. 760-7065
Mfr. Part No.V68ZA10P
BrandLittelfuse
R 8.78
Each (In a Pack of 5)
units
61 → 75V 40V 56V 135V 10A 13J ZA 17mm 1000A 3.87nF - - 5.6mm 17 (Dia.) x 5.6mm
RS stock no. 289-7575
Mfr. Part No.B72220S0250K101
BrandEPCOS
R 13.794
Each (In a Pack of 5)
units
39V 25V 31V 77V 20A 22J Standard 21.5mm 2000A 11.1nF - - 4.7mm 21.5 (Dia.) x 4.7mm
RS stock no. 162-0260
Mfr. Part No.B72660M0271K072
BrandEPCOS
R 6,695.69
1 Reel of 1000
Reel(s)
430V 275Vrms 350V 710V 10A - CU - 1200A 95pF 10.2mm 8mm 4.5mm 10.2 x 8 x 4.5mm