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 Material Series Diameter Maximum Surge Current Capacitance Length Depth Thickness
RS Stock No. 173-1279
Mfr. Part No.VDRS10P275BSE
BrandVishay
£0.09
Each (In a Bag of 250)
Units
430V 275V 350V 710V 25A 63J Metal NTCLE100E3 13.5mm 2500A 270pF 32mm - 5.4mm
RS Stock No. 229-056
Mfr. Part No.VDRS10P275BSE
BrandVishay
£0.20
Each (In a Pack of 5)
Units
430V 275V 350V 710V 25A 63J - NTCLE100E3 13.5mm 2500A 270pF - - 5.4mm
RS Stock No. 538-0761
Mfr. Part No.VDRS10P275BSE
BrandVishay
£0.12
Each
Units
430V 275V 350V 710V 25A 63J Metal NTCLE100E3 13.5mm 2500A 270pF 32mm - 5.4mm
RS Stock No. 178-071
Mfr. Part No.VDRS07H275BSE
BrandVishay
£0.10
Each (In a Pack of 5)
Units
430V 275V 350V 710V 10A 36J - VDRS - E 9mm 1200A 140pF - - 4.9mm
RS Stock No. 178-087
Mfr. Part No.VDRS05C275BSE
BrandVishay
£0.198
Each (In a Pack of 5)
Units
430V 275V 350V 695V 5A 12J - VDRS - E 7mm 400A 55pF - - 4.9mm
RS Stock No. 173-0359
Mfr. Part No.MLV0805E31103T
BrandVishay
£0.094
Each (On a Reel of 4000)
Units
16.5 → 20.3V 11V 14V 30V 1A 0.1J Metal MLV - E3 - 3T - 40A 280pF 2mm 1.25mm -
RS Stock No. 684-0873
Mfr. Part No.MLV0805E31103T
BrandVishay
£0.251
Each (In a Pack of 25)
Units
16.5 → 20.3V 11V 14V 30V 1A 0.1J Metal MLV - E3 - 3T - 40A 280pF 2mm 1.25mm -
RS Stock No. 178-093
Mfr. Part No.VDRS07H130BSE
BrandVishay
£0.104
Each (In a Pack of 5)
Units
205V 130V 170V 340V 10A 17J - VDRS - E 9mm 1200A 320pF - - 4.2mm
RS Stock No. 178-122
Mfr. Part No.VDRS07H060BSE
BrandVishay
£0.26
Each (In a Pack of 5)
Units
100V 60V 85V 165V 10A 8.3J - VDRS - E 9mm 1200A 700pF - - 4.1mm
RS Stock No. 684-0845
Mfr. Part No.MLV0402E31403T
BrandVishay
£0.012
Each (In a Pack of 25)
Units
23 → 28V 14V 18V 40V 1A 0.05J Metal MLV - E3 - 3T - 20A 90pF 1mm 0.5mm -
RS Stock No. 173-3561
Mfr. Part No.MLV0402E31403T
BrandVishay
£0.013
Each (On a Reel of 10000)
Units
23 → 28V 14V 18V 40V 1A 0.05J Metal MLV - E3 - 3T - 20A 90pF 1mm 0.5mm -
RS Stock No. 178-059
Mfr. Part No.VDRS05C460BSE
BrandVishay
£0.282
Each (In a Pack of 5)
Units
750V 460V 615V 1200V 5A 21J - VDRS - E 7mm 400A 30pF - - 6.4mm
RS Stock No. 684-0839
Mfr. Part No.MLV0402E30403T
BrandVishay
£0.266
Each (In a Pack of 25)
Units
7.1 → 9.3V 4V 5.6V 15.5V 1A 0.05J Metal MLV - E3 - 3T - 20A 360pF 1mm 0.5mm -
RS Stock No. 173-0365
Mfr. Part No.MLV0402E30403T
BrandVishay
£0.086
Each (On a Reel of 10000)
Units
7.1 → 9.3V 4V 5.6V 15.5V 1A 0.05J Metal MLV - E3 - 3T - 20A 360pF 1mm 0.5mm -
RS Stock No. 684-0863
Mfr. Part No.MLV0603E32003T
BrandVishay
£0.174
Each (In a Pack of 25)
Units
31 → 38V 20V 26V 58V 1A 0.1J Metal MLV - E3 - 3T - 30A 160pF 1.6mm 0.8mm -
RS Stock No. 173-3615
Mfr. Part No.MLV0603E32003T
BrandVishay
£0.105
Each (On a Reel of 4000)
Units
31 → 38V 20V 26V 58V 1A 0.1J Metal MLV - E3 - 3T - 30A 160pF 1.6mm 0.8mm -
RS Stock No. 173-3599
Mfr. Part No.MLV0805E32503T
BrandVishay
£0.066
Each (On a Reel of 4000)
Units
37 → 46V 25V 30V 65V 1A 0.1J Metal MLV - E3 - 3T - 30A 80pF 2mm 1.25mm -
RS Stock No. 179-3848
Mfr. Part No.VDRS14T275BSE
BrandVishay
£0.258
Each (In a Bag of 20)
Units
430V 275V 350V 710V 50A 104J - VDRS 16.5mm 4500A 440pF 35mm - 5.4mm
RS Stock No. 179-3942
Mfr. Part No.VDRS07H060BSE
BrandVishay
£0.099
Each (In a Bag of 50)
Units
100V 60V 85V 165V 10A 8.3J - VDRS 9mm 1200A 700pF 35mm - 4.1mm
RS Stock No. 179-3932
Mfr. Part No.VDRS05C275BSE
BrandVishay
£0.091
Each (In a Bag of 50)
Units
430V 275V 350V 710V 5A 12J - VDRS 7mm 400A 55pF 33mm - 4.9mm