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. 110-1944
Mfr. Part No.ERZV14D391
BrandPanasonic
$0.436
Each (In a Bag of 1000)
units
390V 250V 320V 650V - - ZNR - 6000A 500pF - - - 15.5 (Dia.) x 5.8mm
RS Stock No. 543-5142
Mfr. Part No.V275LA40AP
BrandLittelfuse
$1.442
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. 760-7043
Mfr. Part No.V510LA80BP
BrandLittelfuse
$2.31
Each (In a Pack of 5)
units
735 → 860V 510V 675V 1280V 100A 190J LA 23mm 6500A 500pF - - 7.3mm 23 (Dia.) x 7.3mm
RS Stock No. 720-9973
Mfr. Part No.ERZV14D391
BrandPanasonic
$1.178
Each (In a Pack of 5)
units
390V 250V 320V 650V 50A - ZNR 15.5mm 6000A 500pF - - - 15.5 (Dia.) x 5.8mm
RS Stock No. 170-9914
Mfr. Part No.V275LA40AP
BrandLittelfuse
$0.801
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. 538-0648
Mfr. Part No.VDRS10P250BSE
$1.46
Each
units
390V 250V 320V 650V 25A 58J VDR 13.5mm 2500A 300pF - 5.4mm 8mm 13.5 (Dia.) x 8mm
RS Stock No. 170-9986
Mfr. Part No.V510LA80BP
BrandLittelfuse
$1.485
Each (In a Bag of 400)
units
735 → 860V 510V 675V 1280V 100A 190J LA 23mm 6500A 500pF - - 7.3mm 23 (Dia.) x 7.3mm
RS Stock No. 669-4437
Mfr. Part No.82550250
$1.112
Each (In a Pack of 5)
units
39V 25V 30V 65V 1A 0.3J WE-VS - 100A 310pF 2mm 1.25mm - -
RS Stock No. 170-2868
Mfr. Part No.B72220S0950K101
BrandEPCOS
$0.935
Each (On a Reel of 250)
units
150V 95V 125V 250V 100A 50J Standard 21.5mm 6500A 1.83nF - - 4.5mm 21.5 (Dia.) x 4.5mm
RS Stock No. 163-3892
Mfr. Part No.82550250
$0.814
Each (On a Reel of 4000)
units
39V 25V 30V 65V 1A 0.3J WE-VS - 100A 310pF 2mm 1.25mm - -
RS Stock No. 543-5300
Mfr. Part No.V510LA40AP
BrandLittelfuse
$1.772
Each (In a Pack of 5)
units
910V 510V 675V 1350V 50A 110J LA 17mm 4500A 250pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 760-6863
Mfr. Part No.V14E275P
BrandLittelfuse
$0.749
Each (In a Pack of 10)
units
387 → 473V 275V 350V 710V 50A 110J E 17mm 6000A 450pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 110-1940
Mfr. Part No.ERZV14D241
BrandPanasonic
$0.355
Each (In a Bag of 1000)
units
240V 150V 200V 395V - - ZNR - 6000A 700pF - - - 15.5 (Dia.) x 5mm
RS Stock No. 289-7250
Mfr. Part No.B72220S0950K101
BrandEPCOS
$1.552
Each (In a Pack of 5)
units
150V 95V 125V 250V 100A 50J Standard 21.5mm 6500A 1.83nF - - 4.5mm 21.5 (Dia.) x 4.5mm
RS Stock No. 106-9909
Mfr. Part No.ERZV14D241
BrandPanasonic
$0.355
Each (In a Bag of 1000)
units
240V 150V 200V 395V - - ZNR - 6000A 700pF - - - 15.5 (Dia.) x 5mm
RS Stock No. 170-9956
Mfr. Part No.V14E275P
BrandLittelfuse
$0.508
Each (In a Bag of 700)
units
387 → 473V 275V 350V 710V 50A 110J E 17mm 6000A 450pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 170-9924
Mfr. Part No.V510LA40AP
BrandLittelfuse
$1.034
Each (In a Bag of 500)
units
910V 510V 675V 1350V 50A 110J LA 17mm 4500A 250pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 720-9958
Mfr. Part No.ERZV14D241
BrandPanasonic
$0.782
Each (In a Pack of 5)
units
240V 150V 200V 395V 50A 84J ZNR 15.5mm 6000A 700pF - - 5mm 15.5 (Dia.) x 5mm
RS Stock No. 204-2090
Mfr. Part No.B72210S0131K101
BrandEPCOS
$0.958
Each (In a Pack of 5)
units
205V 130V 170V 340V 25A 19J Standard 12mm 2500A 400pF - - 4.2mm 12 (Dia.) x 4.2mm
RS Stock No. 170-2887
Mfr. Part No.B72220S0111K101
BrandEPCOS
$0.935
Each (On a Reel of 250)
units
180V 115V 150V 300V 100A 60J Standard 21.5mm 6500A 1.52nF - - 4.7mm 21.5 (Dia.) x 4.7mm
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