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 Material Series Diameter Maximum Surge Current Capacitance Length Depth Thickness
RS Stock No. 187-8115
Mfr. Part No.ERZE14A221S1
BrandPanasonic
PHP23.986
Each (In a Bag of 2000)
units
220V 140V 180V 360V 100A 155J - E-S1 16.5mm 7500A 1.2nF 40mm - 5.3mm
RS Stock No. 720-9945
Mfr. Part No.ERZV14D101
BrandPanasonic
PHP26.244
Each (In a Pack of 5)
units
100V 60V 85V 165V 50A 35J - V 15.5mm 6000A 3.2nF 38.5mm - 4.7mm
New
RS Stock No. 211-1173
Mfr. Part No.ZV50K1206121NIR1
BrandBourns
PHP6.692
Each (On a Reel of 2000)
units
82V 50V 65V 135V 1A - Metal ZV - - 340pF - - -
RS Stock No. 162-0246
Mfr. Part No.B72510E0170K062
BrandEPCOS
PHP9.151
Each (On a Reel of 3000)
units
24.3 → 29.7V 17V 22V 46V 1A 0.3J Ceramic Automative E - 120A 400pF 2mm 1.25mm -
New
RS Stock No. 211-1058
Mfr. Part No.AV14K1206201NIR1HT
BrandBourns
PHP11.023
Each (On a Tape of 25)
units
24V 14V 16V 40V 1A - Metal AVHT - - 1nF - - -
New
RS Stock No. 211-1181
Mfr. Part No.ZV60K1206121NIR1
BrandBourns
PHP6.692
Each (On a Reel of 2000)
units
100V 60V 85V 165V 1A - Metal ZV - - 330pF - - -
RS Stock No. 202-0484
Mfr. Part No.B72225M0321M301
BrandEPCOS
PHP31,017.11
Each
units
510V 320V 420V - - 445J Metal MT25 25mm 20kA 1.09nF 28mm - 14mm
RS Stock No. 187-8152
Mfr. Part No.ERZE14A112SC
BrandPanasonic
PHP59.352
Each (In a Bag of 1000)
units
1100V 680V 895V 1815V 100A 620J - E-S1 17.5mm 7500A 350pF 24.5mm - 10.1mm
RS Stock No. 170-9979
Mfr. Part No.V390ZA05P
BrandLittelfuse
PHP14.154
Each (In a Bag of 1500)
units
351 → 449V 250V 330V 650V 5A 10J Metal ZA 7mm 400A 80pF 29mm - 5.6mm
RS Stock No. 166-7876
Mfr. Part No.VC080526C580DP
BrandAVX
PHP6.846
Each (On a Reel of 1000)
units
34.5V 18V 26V 60V 1A 0.3J Ceramic VC - 100A 250pF 2.01mm 1.25mm -
RS Stock No. 669-4389
Mfr. Part No.82537040
PHP29.326
Each (In a Pack of 5)
units
8V 4V 5.5V 21V 1A 0.04J - WE-VS - 20A 220pF 1mm 0.5mm -
RS Stock No. 785-8922
Mfr. Part No.ERZE11A681
BrandPanasonic
PHP17.65
Each (In a Pack of 25)
units
680V 420V 560V 1120V 50A 190J - V 14mm 5000A 290pF 38mm - 7.8mm
RS Stock No. 669-4320
Mfr. Part No.820475001
PHP36.964
Each (In a Pack of 5)
units
82V 50V 65V 135V 10A 7J Metal WE-VD 9mm 1750A 640pF - - 3.8mm
New
RS Stock No. 219-0560
Mfr. Part No.IsoM5-555-B-L2
BrandBourns
PHP122.196
Each (In a Pack of 5)
units
- 555V 745V 1400V 100A - - IsoMOV - - 75pF - - -
RS Stock No. 851-8408
Mfr. Part No.MOV-20D621K
BrandBourns
PHP37.04
Each
units
620V 385V 505V 1025V 100A 220J Metal MOV-20D 23mm 6500A 650pF 48mm - 6.9mm
RS Stock No. 204-8755
Mfr. Part No.ZV11K1206201NIR1HT
BrandBourns
PHP13.539
Each (In a Pack of 25)
units
18V 11V 14V 33V 1A - Metal ZVHT - - 1.3nF - - -
RS Stock No. 138-9282
Mfr. Part No.B72207S0131K101
BrandEPCOS
PHP15.729
Each (In a Bag of 20)
units
205V 130Vrms 170V 340V 10A 9.5J Metal Standard - 1200A 245pF 9mm 11mm 3.6mm
RS Stock No. 170-9901
Mfr. Part No.V5.5MLA1206H
BrandLittelfuse
PHP22.952
Each (On a Reel of 2500)
units
9.3V 4V 5.5V 17.5V 1A 0.4J Ceramic ML - 150A 3.5nF 3.2mm 1.6mm -
RS Stock No. 167-0166
Mfr. Part No.B72520T0080L062
BrandEPCOS
PHP10.55
Each (On a Reel of 3000)
units
15V 8V 11V 30V 1A 0.5J Ceramic CT - 200A 1nF 3.2mm 1.6mm -
RS Stock No. 202-0489
Mfr. Part No.B72230M0321M401
BrandEPCOS
PHP1,559,698.52
1 Tray of 40
Tray(s)
510V 320V 420V 320V - 445J Metal MT30 25mm 20kA 1.6nF 28mm - 14mm