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. 204-1946
Mfr. Part No.B72214S0600K101
BrandEPCOS
MYR2.00
Each (In a Pack of 5)
units
100V 60V 85V 165V 50A 17J Standard 15.5mm 4500A 1.65nF - - 4mm 15.5 (Dia.) x 4mm
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. 711-8186
Mfr. Part No.B72220P3381K101
BrandEPCOS
MYR5.515
Each (In a Pack of 2)
units
620V 385V 505V 1025V 100A 320J SuperioR-MP 22.5mm 12000A 445pF - - 8.3mm 22.5 (Dia.) x 8.3mm
RS Stock No. 170-9977
Mfr. Part No.V36ZA80P
BrandLittelfuse
MYR1.95
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. 720-9734
Mfr. Part No.ERZV05D470
BrandPanasonic
MYR1.313
Each (In a Pack of 10)
units
47V 30V 38V 104V 1A - ZNR 7mm 250A 650pF - - - 7 (Dia.) x 4.5mm
RS Stock No. 106-9909
Mfr. Part No.ERZV14D241
BrandPanasonic
MYR0.786
Each (In a Bag of 1000)
units
240V 150V 200V 395V - - ZNR - 6000A 700pF - - - 15.5 (Dia.) x 5mm
RS Stock No. 170-9903
Mfr. Part No.V130LA10AP
BrandLittelfuse
MYR1.197
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. 170-2824
Mfr. Part No.B72205S0301K101
BrandEPCOS
MYR0.44
Each (On a Reel of 1000)
units
470V 300V 385V - 400A 9.6J StandarD 7mm - 45pF - - 4.5mm 7 (Dia.) x 4.5mm
RS Stock No. 170-2868
Mfr. Part No.B72220S0950K101
BrandEPCOS
MYR2.081
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. 669-4406
Mfr. Part No.82536140
MYR2.612
Each (In a Pack of 5)
units
25V 14V 18V 45V 1A 0.1J WE-VS - 30A 100pF 1.6mm 0.8mm - -
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. 769-1492
Mfr. Part No.B72205S0301K101
BrandEPCOS
MYR1.088
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. 878-2022
Mfr. Part No.V150LA1P
BrandLittelfuse
MYR0.756
Each (In a Pack of 100)
units
275V 150V 200V 430V - - LA - 1200A 150pF - - - 9 (Dia.) x 12mm
RS Stock No. 289-7626
Mfr. Part No.B72220S0500K101
BrandEPCOS
MYR3.524
Each (In a Pack of 5)
units
82V 50V 65V 135V 100A 27J Standard 21.5mm 6500A 3.8nF - - 4.3mm 21.5 (Dia.) x 4.3mm
RS Stock No. 110-1894
Mfr. Part No.ERZV05D271
BrandPanasonic
MYR0.413
Each (In a Bag of 1000)
units
270V 175V 225V 475V - - ZNR - 800A 90pF - - - 7 (Dia.) x 4.8mm
RS Stock No. 760-6832
Mfr. Part No.V1000LA160BP
BrandLittelfuse
MYR11.286
Each (In a Pack of 5)
units
1425 → 1600V 1000V 1200V 2420V 100A 360J LA 23mm 6500A 250pF - - 10.8mm 23 (Dia.) x 10.8mm
RS Stock No. 170-2913
Mfr. Part No.B72220Q0271K101
BrandEPCOS
MYR4.04
Each (On a Reel of 250)
units
430V 275V 350V 710V 130A 215J EnergetiQ 22.5mm 15000A 930pF - - 5.8mm 22.5 (Dia.) x 5.8mm
RS Stock No. 785-8963
Mfr. Part No.ERZE14A361
BrandPanasonic
MYR3.61
Each (In a Pack of 5)
units
360V 230V 300V 595V 100A 255J ZNR 16.5mm 10000A 900pF - - 5.9mm 16.5 x 5.9mm
RS Stock No. 769-1527
Mfr. Part No.B72210P2511K101
BrandEPCOS
MYR4.642
Each (In a Pack of 10)
units
820V 510V 670V - 3500A 92J S10 13mm - 180pF - - 8.8mm 13 (Dia.) x 8.8mm
RS Stock No. 769-1537
Mfr. Part No.B72214P2551K101
BrandEPCOS
MYR4.42
Each (In a Pack of 10)
units
910V 550V 745V - 6000A 220J S14 17mm - 265pF - - 9.4mm 17 (Dia.) x 9.4mm