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. 204-1930
Mfr. Part No.B72214S0300K101
BrandEPCOS
PHP21.61
Each (In a Pack of 5)
units
47V 30V 38V 30V 10A 9J Standard 15.5mm 1000A 4.95nF - - 4.4mm 15.5 (Dia.) x 4.4mm
RS Stock No. 187-6512
Mfr. Part No.VGAH120616K390DP
BrandAVX
PHP16.28
Each (On a Reel of 1000)
units
24.5V 11V 16V 40V - 0.6J VGAH - 200 (Peak Current)A 1.1nF 3.2mm 1.6mm 1.7mm 3.2 x 1.6 x 1.7mm
RS Stock No. 202-0502
Mfr. Part No.B72230M0681M401
BrandEPCOS
PHP706.41
Each
units
1100V - - - - - MT30 - - 710pF - - - -
RS Stock No. 167-8505
Mfr. Part No.B72240B0231K001
BrandEPCOS
PHP1,549.271
Each (In a Box of 10)
units
360V 230V 300V 595V 300A 460J HighE - 40000A 3.2nF 60mm 14mm - -
RS Stock No. 876-8145
Mfr. Part No.V20E275
BrandLittelfuse
PHP37.824
Each (In a Pack of 500)
units
473V 275V 350V 710V - 190J UltraMOV - 10000A 900pF - - - 23 (Dia.) x 26.5mm
RS Stock No. 720-9740
Mfr. Part No.ERZV05D820
BrandPanasonic
PHP10.50
Each (In a Pack of 10)
units
82V 50V 65V 145V 5A 3.5J ZNR 7mm 800A 460pF - - 4.1mm 7 (Dia.) x 4.1mm
RS Stock No. 170-2880
Mfr. Part No.B72214S0110K101
BrandEPCOS
PHP11.424
Each (On a Reel of 500)
units
18V 11V 14V 36V 10A 3.2J Standard 15.5mm 1000A 12.1nF - - 4mm 15.5 (Dia.) x 4mm
RS Stock No. 163-3883
Mfr. Part No.82541110
PHP32.928
Each (On a Reel of 4000)
units
18V 11V 14V 35V 1A 0.5J WE-VS - 200A 1.5nF 3.2mm 1.6mm - -
RS Stock No. 138-9262
Mfr. Part No.B72214S0950K101
BrandEPCOS
PHP22.395
Each (In a Bag of 20)
units
150V 95Vrms 125V 250V 50A 25J Standard - 4500A 1.2nF 15.5mm 18.5mm 4mm 15.5 x 4 x 18.5mm
RS Stock No. 162-1446
Mfr. Part No.B72205S0231K101
BrandEPCOS
PHP5.88
Each (On a Reel of 1000)
units
360V 230V 300V 595V 5A 7.2J Standard 7mm 400A 60pF - - 4mm 7 (Dia.) x 4mm
New
RS Stock No. 211-1152
Mfr. Part No.ZV30K1812801NIR1
BrandBourns
PHP15.589
Each (On a Reel of 1000)
units
47V 30V 38V 77V 5A - ZV - - 1.8nF - - - -
RS Stock No. 170-2854
Mfr. Part No.B72207S0421K101
BrandEPCOS
PHP6.854
Each (On a Reel of 1000)
units
680V 420V 560V 1120V 10A 32J Standard 9mm 1200A 65pF - - 5.4mm 9 (Dia.) x 5.4mm
RS Stock No. 171-0012
Mfr. Part No.V8ZA2P
BrandLittelfuse
PHP10.043
Each (In a Bag of 1000)
units
11V 4V 5.5V 20V 5A 0.8J ZA 12.5mm 250A 7nF - - 5mm 12.5 (Dia.) x 5mm
RS Stock No. 204-8671
Mfr. Part No.DV130K3225R2
BrandBourns
PHP19.323
Each (On a Reel of 2000)
units
205V - - 340V 5A - DV - - 150pF - - - -
RS Stock No. 878-1735
Mfr. Part No.V251DA40
BrandLittelfuse
PHP2,158.95
Each
units
429V 250V 330V 650V - - DA - 40000A 5nF 62mm - - 62 x 67 x 15mm
RS Stock No. 226-7895
Mfr. Part No.ERZV07D470
BrandPanasonic
PHP20.624
Each (In a Pack of 5)
units
47V 30V 38V 93V 2.5A 2.8J ZNR 8.5mm 500A 1.55nF - - 4.9mm 8.5 (Dia.) x 4.9mm
RS Stock No. 720-9954
Mfr. Part No.ERZV14D221
BrandPanasonic
PHP26.806
Each (In a Pack of 5)
units
220V 140V 180V 360V 50A - ZNR 15.5mm 6000A 740pF - - - 15.5 (Dia.) x 4.9mm
RS Stock No. 878-1303
Mfr. Part No.V271DA40
BrandLittelfuse
PHP2,159.526
Each (In a Pack of 12)
units
473V 275V 369V 730V - - DA - 40000A 4.5nF 62mm - - 62 x 67 x 15mm
New
RS Stock No. 209-8092
Mfr. Part No.AV20K1206201NIR1
BrandBourns
PHP10.744
Each (On a Tape of 25)
units
22V 20V ac 26V dc 54V 1A - AV Series - - 780pF - - - -
RS Stock No. 289-6932
Mfr. Part No.B72205S0231K101
BrandEPCOS
PHP21.00
Each (In a Pack of 5)
units
360V 230V 300V 595V 5A 7.2J Standard 7mm 400A 60pF - - 4mm 7 (Dia.) x 4mm