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. 543-5142
Mfr. Part No.V275LA40AP
BrandLittelfuse
£0.638
Each (In a Pack of 5)
Units
473V 275V 369V 710V 100A 140J LA 23mm 6500A 900pF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9914
Mfr. Part No.V275LA40AP
BrandLittelfuse
£0.274
Each (In a Bag of 500)
Units
473V 275V 369V 710V 100A 140J LA 23mm 6500A 900pF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 171-0002
Mfr. Part No.V275LA20AP
BrandLittelfuse
£0.167
Each (In a Bag of 700)
Units
473V 275V 369V 710V 50A 75J LA 17mm 4500A 450pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 800-7068
Mfr. Part No.V275LA20AP
BrandLittelfuse
£0.361
Each (In a Pack of 10)
Units
473V 275V 369V 710V 50A 75J LA 17mm 4500A 450pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 800-7052
Mfr. Part No.V250LA40AP
BrandLittelfuse
£0.576
Each (In a Pack of 10)
Units
429V 250V 330V 650V 100A 130J LA 23mm 6500A 1nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9999
Mfr. Part No.V250LA40AP
BrandLittelfuse
£0.284
Each (In a Bag of 500)
Units
429V 250V 330V 650V 100A 130J LA 23mm 6500A 1nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9908
Mfr. Part No.V150LA10AP
BrandLittelfuse
£0.157
Each (In a Bag of 700)
Units
268V 150V 200V 395V 50A 45J LA 17mm 4500A 800pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 543-4953
Mfr. Part No.V150LA10AP
BrandLittelfuse
£0.422
Each (In a Pack of 5)
Units
268V 150V 200V 395V 50A 45J LA 17mm 4500A 800pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 800-7059
Mfr. Part No.V250LA20AP
BrandLittelfuse
£0.407
Each (In a Pack of 10)
Units
429V 250V 330V 650V 50A 72J LA 17mm 4500A 500pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 173-2642
Mfr. Part No.V250LA20AP
BrandLittelfuse
£0.167
Each (In a Bag of 700)
Units
429V 250V 330V 650V 50A 72J LA 17mm 4500A 500pF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 878-2022
Mfr. Part No.V150LA1P
BrandLittelfuse
£0.156
Each (In a Pack of 100)
Units
275V 150V 200V 430V - - LA - 1200A 150pF - - - 9 (Dia.) x 12mm
RS Stock No. 171-0001
Mfr. Part No.V275LA10P
BrandLittelfuse
£0.128
Each (In a Bag of 1000)
Units
473V 275V 369V 710V 25A 45J LA 12.5mm 2500A 200pF - - 5.6mm 12.5 (Dia.) x 5.6mm
RS Stock No. 800-7065
Mfr. Part No.V275LA10P
BrandLittelfuse
£0.376
Each (In a Pack of 10)
Units
473V 275V 369V 710V 25A 45J LA 12.5mm 2500A 200pF - - 5.6mm 12.5 (Dia.) x 5.6mm
RS Stock No. 543-5209
Mfr. Part No.V33ZA5P
BrandLittelfuse
£0.46
Each (In a Pack of 5)
Units
36.5V 20V 26V 65V 10A 6J ZA 17mm 1000A 9.29nF - - 5mm 17 (Dia.) x 5mm
RS Stock No. 170-9917
Mfr. Part No.V33ZA5P
BrandLittelfuse
£0.176
Each (In a Bag of 700)
Units
36.5V 20V 26V 65V 10A 6J ZA 17mm 1000A 9.29nF - - 5mm 17 (Dia.) x 5mm
RS Stock No. 170-9898
Mfr. Part No.V22ZA3P
BrandLittelfuse
£0.216
Each (In a Bag of 700)
Units
26V 14V 18V 43V 10A 4J VA 17mm 1000A 14.73nF - - 5mm 17 (Dia.) x 5mm
RS Stock No. 252-703
Mfr. Part No.V22ZA3P
BrandLittelfuse
£0.50
Each (In a Pack of 5)
Units
26V 14V 18V 43V 10A 4J VA 17mm 1000A 14.73nF - - 5mm 17 (Dia.) x 5mm
RS Stock No. 170-9969
Mfr. Part No.V275LA40BP
BrandLittelfuse
£0.353
Each (In a Bag of 500)
Units
389 → 453V 275V 369V 680V 100A 140J LA 23mm 6500A 900pF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 760-6942
Mfr. Part No.V275LA40BP
BrandLittelfuse
£0.68
Each (In a Pack of 5)
Units
389 → 453V 275V 369V 680V 100A 140J LA 23mm 6500A 900pF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9903
Mfr. Part No.V130LA10AP
BrandLittelfuse
£0.167
Each (In a Bag of 700)
Units
228V 130V 175V 340V 50A 38J LA 17mm 4500A 1nF - - 5.6mm 17 (Dia.) x 5.6mm