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. 187-7032
Mfr. Part No.VTA7080518C400DP
BrandAVX
MYR0.672
Each (On a Reel of 1000)
units
13 V ac, 18 V dc 13V 18V 42V - 0.3J VT - 120A 450pF 2.01mm 1.25mm 1.02mm 2.01 x 1.25 x 1.02mm
RS Stock No. 170-9959
Mfr. Part No.V150ZA8P
BrandLittelfuse
MYR1.24
Each (In a Bag of 700)
units
135 → 165V 95V 127V 250V 50A 20J ZA 17mm 4500A 1.91nF - - 5mm 17 (Dia.) x 5mm
RS Stock No. 110-1914
Mfr. Part No.ERZV10D560
BrandPanasonic
MYR0.691
Each (In a Bag of 1000)
units
56V 35V 45V 110V - - ZNR - 1000A 3.75nF - - - 11.5 (Dia.) x 5.1mm
RS Stock No. 110-1920
Mfr. Part No.ERZV10D361
BrandPanasonic
MYR0.642
Each (In a Bag of 1000)
units
360V 230V 300V 595V - - ZNR - 3500A 300pF - - - 11.5 (Dia.) x 5.7mm
RS Stock No. 187-7636
Mfr. Part No.VLAS120616E350DP
BrandAVX
MYR1.50
Each (In a Pack of 25)
units
11 V ac, 16 V dc 11V 16V 35V - 0.5J VLAS - 200A 1.4nF 2.01mm 1.25mm 1.02mm 2.01 x 1.25 x 1.02mm
RS Stock No. 289-6982
Mfr. Part No.B72207S0231K101
BrandEPCOS
MYR2.17
Each (In a Pack of 5)
units
360V 230V 300V 595V 10A 17J Standard 9mm 1200A 115pF - - 4mm 9 (Dia.) x 4mm
RS Stock No. 760-6936
Mfr. Part No.V250LA2P
BrandLittelfuse
MYR1.306
Each (In a Pack of 10)
units
354 → 473V 250V 330V 730V 10A 21J LA 9mm 1200A 90pF - - 5.6mm 9 (Dia.) x 5.6mm
RS Stock No. 187-7037
Mfr. Part No.VLAS120616E350DP
BrandAVX
MYR0.778
Each (On a Reel of 1000)
units
11 V ac, 16 V dc 11V 16V 35V - 0.5J VLAS - 200A 1.4nF 2.01mm 1.25mm 1.02mm 2.01 x 1.25 x 1.02mm
RS Stock No. 186-2045
Mfr. Part No.GMOV-14D231K
BrandBourns
MYR4.628
Each (In a Bag of 400)
units
230 Vrms, 300 V dc 230Vrms 300V 620V 6000A 130J GMOV 16.5mm - 4pF - - 8mm 16.5 Dia. x 8mm
RS Stock No. 785-8837
Mfr. Part No.ERZE10A271
BrandPanasonic
MYR1.35
Each (In a Pack of 25)
units
270V 175V 225V 455V 10A 64J ZNR 11.5mm 4500A 530pF - - 5.7mm 11.5 (Dia.) x 5.7mm
RS Stock No. 785-8736
Mfr. Part No.ERZE07A221
BrandPanasonic
MYR1.15
Each (In a Pack of 25)
units
220V 140V 180V 360V 25A 30J ZNR 9mm 2500A 350pF - - 5.4mm 9 x 5.4mm
RS Stock No. 878-3964
Mfr. Part No.V282BB60
BrandLittelfuse
MYR1,388.29
Each (In a Pack of 4)
units
5170V 2800V 3500V 7400V - - BB - 70000A 800pF 100mm - - 100 x 95 x 44.5mm
RS Stock No. 187-6512
Mfr. Part No.VGAH120616K390DP
BrandAVX
MYR1.408
Each (On a Reel of 1000)
units
24.5V 11V 16V 40V - 0.6J VGAH - 200 (Peak Current)A 1.1nF 3.2mm 1.6mm 1.7mm 3.2 x 1.6 x 1.7mm
RS Stock No. 204-1867
Mfr. Part No.B72207S0950K101
BrandEPCOS
MYR2.17
Each (In a Pack of 5)
units
150V 95V 125V 250V 10A 7.6J Standard 9mm 1200A 260pF - - 3.4mm 9 (Dia.) x 3.4mm
RS Stock No. 110-1904
Mfr. Part No.ERZV07D221
BrandPanasonic
MYR0.421
Each (In a Bag of 1000)
units
220V 140V 180V 360V - - ZNR - 1750A 190pF - - - 8.5 (Dia.) x 4.5mm
RS Stock No. 167-8505
Mfr. Part No.B72240B0231K001
BrandEPCOS
MYR108.63
Each (In a Box of 10)
units
360V 230V 300V 595V 300A 460J HighE - 40000A 3.2nF 60mm 14mm - -
RS Stock No. 138-6055
Mfr. Part No.B72214S2271K101
BrandEPCOS
MYR1.234
Each (In a Box of 500)
units
430V 275Vrms 350V 710V 50A 110J Advanced - 6000A 440pF 15.5mm 18.5mm 5.4mm 15.5 x 5.4 x 18.5mm
RS Stock No. 170-9973
Mfr. Part No.V300LA4P
BrandLittelfuse
MYR0.618
Each (In a Bag of 1500)
units
420 → 517V 300V 405V 775V 10A 25J LA 9mm 1200A 70pF - - 5.6mm 9 (Dia.) x 5.6mm
RS Stock No. 186-2107
Mfr. Part No.GMOV-14D650K
BrandBourns
MYR6.732
Each (In a Pack of 5)
units
65 Vrms, 85 V dc 65Vrms 85V 185V 6000A 33J GMOV 16.5mm - 4pF - - 8mm 16.5 Dia. x 8mm
RS Stock No. 187-8127
Mfr. Part No.ERZE14A751S1
BrandPanasonic
MYR1.948
Each (In a Bag of 1000)
units
750V 460V 615V 1240V 100A 420J E14-S1 17.5mm 7500A 530pF - - 8.2mm 17.5 Dia. x 8.2mm