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. 106-7962
Mfr. Part No.ERZE10A911
BrandPanasonic
MYR633.90
1 Bag of 1000
Bag(s)
910V 550V 745V 1500V - - ZNR - 4500A 220pF - - - 12.5 (Dia.) x 9.5mm
RS Stock No. 106-9875
Mfr. Part No.ERZV07D271
BrandPanasonic
MYR0.425
Each (In a Bag of 1000)
units
270V 175V 225V 455V - - ZNR - 1750A 150pF - - - 8.5 (Dia.) x 4.8mm
RS Stock No. 760-7018
Mfr. Part No.V420LA20AP
BrandLittelfuse
MYR2.428
Each (In a Pack of 5)
units
610 → 748V 420V 560V 1120V 50A 90J LA 17mm 4500A 300pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 170-2869
Mfr. Part No.B72220S0171K101
BrandEPCOS
MYR2.27
Each (On a Reel of 250)
units
270V 175V 225V 455V 100A 98J Standard 21.5mm 8000A 1nF - - 5mm 21.5 (Dia.) x 5mm
RS Stock No. 170-9981
Mfr. Part No.V430CH8T
BrandLittelfuse
MYR2.38
Each (On a Reel of 1000)
units
389 → 473V 275V 369V 710V 10A 8J CH - 250A 50pF 8.51mm 5.26mm 2.03mm 8.51 x 5.26 x 2.03mm
RS Stock No. 170-9966
Mfr. Part No.V24ZA50P
BrandLittelfuse
MYR1.376
Each (In a Bag of 500)
units
19.2 → 26V 14V 18V 43V 20A 100J ZA 23mm 2000A 18nF - - 5mm 23 (Dia.) x 5mm
RS Stock No. 785-8904
Mfr. Part No.ERZE11A431
BrandPanasonic
MYR1.112
Each (In a Pack of 25)
units
430V 275V 350V 710V 50A 155J ZNR 13mm 6000A 400pF - - 6.4mm 13 x 6.4mm
RS Stock No. 769-1549
Mfr. Part No.B72220P3511K101
BrandEPCOS
MYR7.53
Each (In a Pack of 10)
units
820V 510V 670V - 10000A 445J S20 23mm - 600pF - - 9.3mm 23 (Dia.) x 9.3mm
RS Stock No. 172-5217
Mfr. Part No.820552501
MYR1.65
Each (On a Reel of 1500)
units
39V 25V 31V 86V 1A 1.2J WE-VD 7.5mm 100A 830pF - - 4.7mm 7.5 (Dia.) x 4.7mm
RS Stock No. 876-8177
Mfr. Part No.V12ZA2
BrandLittelfuse
MYR1.436
Each (In a Pack of 50)
units
16V 6V 8V 30V - 1.2J ZA - 250A 6.1nF - - - 12.5 (Dia.) x 16mm
RS Stock No. 170-9984
Mfr. Part No.V480LA80BP
BrandLittelfuse
MYR1.70
Each (In a Bag of 400)
units
670 → 790V 480V 640V 1160V 100A 180J LA 23mm 6500A 550pF - - 7.3mm 23 (Dia.) x 7.3mm
RS Stock No. 878-2022
Mfr. Part No.V150LA1P
BrandLittelfuse
MYR0.771
Each (In a Pack of 100)
units
275V 150V 200V 430V - - LA - 1200A 150pF - - - 9 (Dia.) x 12mm
RS Stock No. 162-1422
Mfr. Part No.B72220P3511K101
BrandEPCOS
MYR4.162
Each (On a Reel of 100)
units
820V 510V 670V - 10000A 445J S20 23mm - 600pF - - 9.3mm 23 (Dia.) x 9.3mm
RS Stock No. 170-2910
Mfr. Part No.B72214P2551K101
BrandEPCOS
MYR3.39
Each (On a Reel of 200)
units
910V 550V 745V - 6000A 220J S14 17mm - 265pF - - 9.4mm 17 (Dia.) x 9.4mm
RS Stock No. 171-0017
Mfr. Part No.V5.5MLA0603H
BrandLittelfuse
MYR1,462.50
1 Reel of 2500
Reel(s)
9.3V 4V 5.5V 17.5V 1A 0.1J ML - 30A 500pF 1.6mm 1mm 0.8mm 1.6 x 0.8 x 1mm
RS Stock No. 851-8391
Mfr. Part No.MOV-20D470K
BrandBourns
MYR1.89
Each
units
47V - 38V 93V 20A 33J MOV-20D 23mm - 7.4nF - - 4.6mm 23 (Dia.) x 4.6mm
RS Stock No. 170-9903
Mfr. Part No.V130LA10AP
BrandLittelfuse
MYR0.706
Each (In a Bag of 700)
units
228V 130V 175V 340V 50A 38J LA 17mm 4500A 1nF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 106-9858
Mfr. Part No.ERZV05D470
BrandPanasonic
MYR410.88
1 Bag of 1000
Bag(s)
47V 30V 38V 104V - - ZNR - 250A 650pF - - - 7 (Dia.) x 4.5mm
RS Stock No. 170-9982
Mfr. Part No.V420LA20AP
BrandLittelfuse
MYR0.937
Each (In a Bag of 600)
units
610 → 748V 420V 560V 1120V 50A 90J LA 17mm 4500A 300pF - - 7.3mm 17 (Dia.) x 7.3mm
RS Stock No. 878-1710
Mfr. Part No.V571BA60
BrandLittelfuse
MYR763.02
Each
units
1001V 575V 730V 1420V - - BA - 70000A 4.5nF 100mm - - 100 x 95 x 23.5mm
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