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. 167-4467
Mfr. Part No.CG0402MLU-12G
BrandBourns
TWD4.20
Each (On a Reel of 10000)
units
- - 12V 25V - - MLU - - 0.05pF 1mm 0.5mm - 1 x 0.5mm
RS Stock No. 167-4468
Mfr. Part No.CG0402MLU-05G
BrandBourns
TWD4.60
Each (On a Reel of 10000)
units
- - 5V 25V - - MLU - - 0.05pF 1mm 0.5mm - 1 x 0.5mm
RS Stock No. 204-8724
Mfr. Part No.PV150K3225R2
BrandBourns
TWD15.10
Each (In a Pack of 10)
units
240V - - 395V 5A - PV - - 140pF - - - -
RS Stock No. 204-8809
Mfr. Part No.ZV30K1812801NIR1HT
BrandBourns
TWD9.80
Each (On a Reel of 1000)
units
47V 30V 38V 77V 5A - ZVHT - - 1.8nF - - - -
RS Stock No. 167-4469
Mfr. Part No.CG0402MLU-24G
BrandBourns
TWD4.20
Each (On a Reel of 10000)
units
- - 24V 25V - - MLU - - 0.05pF 1mm 0.5mm - 1 x 0.5mm
New
RS Stock No. 209-8097
Mfr. Part No.AV20K1812801NIR1
BrandBourns
TWD17.70
Each (On a Tape of 10)
units
22V 20V ac 26V dc 54V 5A - AV Series - - 3.3nF - - - -
New
RS Stock No. 219-0557
Mfr. Part No.IsoM5-510-B-L2
BrandBourns
TWD66.60
Each (In a Pack of 5)
units
- 510V 670V 1300V 100A - IsoMOV - - 75pF - - - -
New
RS Stock No. 209-8072
Mfr. Part No.AV14K0805121NIR1
BrandBourns
TWD4.90
Each (On a Tape of 25)
units
24V 14V ac 16V dc 40V 1A - AV Series - - 440pF - - - -
RS Stock No. 851-8379
Mfr. Part No.MOV-20D220K
BrandBourns
TWD21.00
Each
units
22V - 18V 43V 20A 14J MOV-20D 23mm - 18.5nF - - 4.3mm 23 (Dia.) x 4.3mm
RS Stock No. 204-8730
Mfr. Part No.PV175K4032R2
BrandBourns
TWD15.10
Each (In a Pack of 10)
units
270V - - 455V 10A - PV - - 120pF - - - -
RS Stock No. 204-8743
Mfr. Part No.PV275K4032R2
BrandBourns
TWD15.10
Each (In a Pack of 10)
units
430V - - 710V 10A - PV - - 160pF - - - -
RS Stock No. 204-8776
Mfr. Part No.ZV20K0805121NIR1HT
BrandBourns
TWD2.70
Each (On a Reel of 3500)
units
33V 20V 26V 54V 1A - ZVHT - - 290pF - - - -
RS Stock No. 204-8834
Mfr. Part No.ZV50K2220801NIR1HT
BrandBourns
TWD14.60
Each (On a Reel of 1000)
units
82V 50V 65V 135V 10A - ZVHT - - 1.5nF - - - -
RS Stock No. 204-8755
Mfr. Part No.ZV11K1206201NIR1HT
BrandBourns
TWD6.40
Each (In a Pack of 25)
units
18V 11V 14V 33V 1A - ZVHT - - 1.3nF - - - -
New
RS Stock No. 211-1185
Mfr. Part No.ZV60K2220801NIR1
BrandBourns
TWD14.90
Each (On a Reel of 1000)
units
100V 60V 85V 165V 10A - ZV - - 1nF - - - -
New
RS Stock No. 211-1095
Mfr. Part No.ZV11K0603300NIR1
BrandBourns
TWD3.60
Each (On a Tape of 50)
units
18V 11V 14V 33V 1A - ZV - - 210pF - - - -
New
RS Stock No. 219-0558
Mfr. Part No.IsoM5-555-B-L2
BrandBourns
TWD31.30
Each (In a Bag of 300)
units
- 555V 745V 1400V 100A - IsoMOV - - 75pF - - - -
New
RS Stock No. 209-8081
Mfr. Part No.AV17K0805121NIR1
BrandBourns
TWD2.70
Each (On a Reel of 3500)
units
27V 17V ac 20V dc 44V 1A - AV Series - - 370pF - - - -
RS Stock No. 186-2083
Mfr. Part No.GMOV-20D171K
BrandBourns
TWD63.80
Each (In a Pack of 5)
units
175 Vrms, 225 V dc 175Vrms 225V 470V 10000A 190J GMOV 23mm - 4pF - - 9mm 23 Dia. x 9mm
RS Stock No. 204-8810
Mfr. Part No.ZV30K1812801NIR1HT
BrandBourns
TWD14.70
Each (In a Pack of 10)
units
47V 30V 38V 77V 5A - ZVHT - - 1.8nF - - - -