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. 2508486632
Mfr. Part No.S20K1000
BrandEPCOS
€2.26
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RS Stock No. 2508485409
Mfr. Part No.B32K130
BrandEPCOS
€20.47
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RS Stock No. 2508486187
Mfr. Part No.B60K275
BrandEPCOS
€85.68
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RS Stock No. 2508486222
Mfr. Part No.S14K385
BrandEPCOS
€0.26
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Littelfuse metal oxide varistors are compact and versatile, ...
Description:
Littelfuse metal oxide varistors are compact and versatile, and can be used within a wide range of applicationsThe LA series of MOV’s are radial-lead varistors that are designed to be operated continuously across AC power lines.The MA series of MOV’s ...
The HighE series of metal oxide varistors from ...
Description:
The HighE series of metal oxide varistors from Epcos offer a surge current capability up to 100kA and are suitable for heavy duty applications Encapsulated in plastic housing, these disk-shaped metal oxide varistors have a wide operating range. Flame-retardant housing ...
Littelfuse metal oxide varistors are compact and versatile, ...
Description:
Littelfuse metal oxide varistors are compact and versatile, and can be used within a wide range of applicationsThe LA series of MOV’s are radial-lead varistors that are designed to be operated continuously across AC power lines.The MA series of MOV’s ...
Standard radial epoxy-coated MOV with tinned-copper leads Tinned ...
Description:
Standard radial epoxy-coated MOV with tinned-copper leads Tinned copper wire leads with a ceramic body coated with epoxy resin Rated for surge current (8//20 μs) and for energy (2ms).