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. 167-0493
Mfr. Part No.B72260B0102K001
BrandEPCOS
MYR1,178.808
Each (In a Box of 10)
units
1800V 1100V 1465V 2970V 500A 3000J HighE - 70000A 1.6nF 100mm 100mm 24mm 100 x 100 x 24mm
RS Stock No. 162-1422
Mfr. Part No.B72220P3511K101
BrandEPCOS
MYR4.579
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. 878-2022
Mfr. Part No.V150LA1P
BrandLittelfuse
MYR0.848
Each (In a Pack of 100)
units
275V 150V 200V 430V - - LA - 1200A 150pF - - - 9 (Dia.) x 12mm
RS Stock No. 170-2889
Mfr. Part No.B72210S0321K101
BrandEPCOS
MYR0.818
Each (On a Reel of 500)
units
510V 320V 420V 840V 25A 50J Standard 12mm 2500A 170pF - - 5.4mm 12 (Dia.) x 5.4mm
RS Stock No. 760-7015
Mfr. Part No.V430CH8T
BrandLittelfuse
MYR4.334
Each (In a Pack of 5)
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. 106-9894
Mfr. Part No.ERZV10D431
BrandPanasonic
MYR642.00
1 Bag of 1000
Bag(s)
430V 275V 350V 710V - - ZNR - 3500A 270pF - - - 11.5 (Dia.) x 6mm
RS Stock No. 851-8391
Mfr. Part No.MOV-20D470K
BrandBourns
MYR1.98
Each
units
47V - 38V 93V 20A 33J MOV-20D 23mm - 7.4nF - - 4.6mm 23 (Dia.) x 4.6mm
RS Stock No. 204-2214
Mfr. Part No.B72220S0421K101
BrandEPCOS
MYR4.54
Each (In a Pack of 5)
units
680V 420V 560V 1120V 100A 175J Standard 21.5mm 8000A 420pF - - 6.5mm 21.5 (Dia.) x 6.5mm
RS Stock No. 162-1423
Mfr. Part No.B72220S0350K101
BrandEPCOS
MYR2.27
Each (On a Reel of 250)
units
56V 35V 45V 110V 20A 33J Standard 21.5mm 2000A 8nF - - 5.1mm 21.5 (Dia.) x 5.1mm
RS Stock No. 163-3879
Mfr. Part No.82536140
MYR7,976.40
1 Reel of 4000
Reel(s)
25V 14V 18V 45V 1A 0.1J WE-VS - 30A 100pF 1.6mm 0.8mm - -
RS Stock No. 543-4874
Mfr. Part No.V130LA10AP
BrandLittelfuse
MYR2.47
Each (In a Pack of 5)
units
228V 130V 175V 340V 50A 38J LA 17mm 4500A 1nF - - 5.6mm 17 (Dia.) x 5.6mm
RS Stock No. 720-9888
Mfr. Part No.ERZV10D201
BrandPanasonic
MYR1.33
Each (In a Pack of 10)
units
200V 130V 170V 340V 25A - ZNR 11.5mm 3500A 430pF - - - 11.5 (Dia.) x 4.8mm
RS Stock No. 170-9977
Mfr. Part No.V36ZA80P
BrandLittelfuse
MYR1.703
Each (In a Bag of 500)
units
32 → 40V 23V 31V 63V 20A 160J ZA 23mm 2000A 12nF - - 5mm 23 (Dia.) x 5mm
RS Stock No. 769-1492
Mfr. Part No.B72205S0301K101
BrandEPCOS
MYR1.09
Each (In a Pack of 10)
units
470V 300V 385V - 400A 9.6J StandarD 7mm - 45pF - - 4.5mm 7 (Dia.) x 4.5mm
RS Stock No. 439-596
Mfr. Part No.ERZV10D201
BrandPanasonic
MYR1.263
Each (In a Pack of 10)
units
200V 130V 170V 340V 25A 35J - 11.5mm 3500A 430pF - - 4.8mm 11.5 (Dia.) x 4.8mm
RS Stock No. 813-3596
Mfr. Part No.B72260B0102K001
BrandEPCOS
MYR651.31
Each
units
1800V 1100V 1465V 2970V 500A 3000J HighE - 70000A 1.6nF 100mm 100mm 24mm 100 x 100 x 24mm
RS Stock No. 878-1943
Mfr. Part No.V20E320P
BrandLittelfuse
MYR2.323
Each (In a Pack of 400)
units
561V 320V 420V 840V - - UltraMOV - 10000A 750pF - - - 23 (Dia.) x 26.5mm
RS Stock No. 170-2824
Mfr. Part No.B72205S0301K101
BrandEPCOS
MYR394.46
1 Reel of 1000
Reel(s)
470V 300V 385V - 400A 9.6J StandarD 7mm - 45pF - - 4.5mm 7 (Dia.) x 4.5mm
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. 170-2862
Mfr. Part No.B72210S0151K101
BrandEPCOS
MYR0.818
Each (On a Reel of 500)
units
240V 150V 200V 395V 25A 24J Standard 12mm 2500A 350pF - - 4.4mm 12 (Dia.) x 4.4mm
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