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. 110-1906
Mfr. Part No.ERZV07D391
BrandPanasonic
PHP5.688
Each (In a Bag of 1000)
units
390V 250V 320V 650V - - ZNR - 1750A 130pF - - - 8.5 (Dia.) x 5.4mm
RS Stock No. 289-6780
Mfr. Part No.B72210S0350K101
BrandEPCOS
PHP22.518
Each (In a Pack of 5)
units
56V 35V 45V 110V 5A 5.4J Standard 12mm 500A 2.4nF - - 4.4mm 12 (Dia.) x 4.4mm
RS Stock No. 769-1515
Mfr. Part No.B72214S0301K101
BrandEPCOS
PHP23.52
Each (In a Pack of 10)
units
470V 300V 385V - 4500A 76J StandarD 15.5mm - 300pF - - 5.2mm 15.5 (Dia.) x 5.2mm
RS Stock No. 170-2855
Mfr. Part No.B72210S0350K101
BrandEPCOS
PHP10.50
Each (On a Reel of 500)
units
56V 35V 45V 110V 5A 5.4J Standard 12mm 500A 2.4nF - - 4.4mm 12 (Dia.) x 4.4mm
RS Stock No. 170-2868
Mfr. Part No.B72220S0950K101
BrandEPCOS
PHP27.276
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. 785-8979
Mfr. Part No.ERZE14A471
BrandPanasonic
PHP37.422
Each (In a Pack of 5)
units
470V 300V 385V 775V 100A 350J ZNR 16.5mm 10000A 750pF - - 6.4mm 16.5 x 6.4mm
RS Stock No. 720-9920
Mfr. Part No.ERZV14D470
BrandPanasonic
PHP24.718
Each (In a Pack of 5)
units
47V 30V 38V 93V 10A - ZNR 15.5mm 2000A 6.75nF - - - 15.5 (Dia.) x 5mm
RS Stock No. 204-2056
Mfr. Part No.B72207S0251K101
BrandEPCOS
PHP22.35
Each (In a Pack of 5)
units
390V 250V 320V 650V 10A 19J Standard 9mm 1200A 105pF - - 4.2mm 9 (Dia.) x 4.2mm
RS Stock No. 167-8518
Mfr. Part No.B72240B0461K001
BrandEPCOS
PHP2,455.293
Each (In a Box of 10)
units
750V 460V 615V 1240V 300A 1000J HighE - 40000A 1.6nF 60mm 14mm - -
RS Stock No. 173-1279
Mfr. Part No.VDRS10P275BSE
BrandVishay
PHP9.524
Each (In a Bag of 250)
units
430V 275V 350V 710V 25A 63J NTCLE100E3 13.5mm 2500A 270pF - - 5.4mm 13.5 (Dia.) x 5.4mm
RS Stock No. 289-7250
Mfr. Part No.B72220S0950K101
BrandEPCOS
PHP42.024
Each (In a Pack of 5)
units
150V 95V 125V 250V 100A 50J Standard 21.5mm 6500A 1.83nF - - 4.5mm 21.5 (Dia.) x 4.5mm
RS Stock No. 110-1929
Mfr. Part No.ERZV14D470
BrandPanasonic
PHP9.492
Each (In a Bag of 1000)
units
47V 30V 38V 93V - - ZNR - 2000A 6.75nF - - - 15.5 (Dia.) x 5mm
RS Stock No. 110-1961
Mfr. Part No.ERZV20D431
BrandPanasonic
PHP40.17
Each (In a Bag of 1000)
units
430V 275V 350V 710V - - ZNR - 10000A - - - - 21.5 (Dia.) x 6.4mm
RS Stock No. 178-087
Mfr. Part No.PTCCL05H131EBE
BrandVishay
PHP9.702
Each (In a Pack of 5)
units
430V 275V 350V 695V 5A 12J VDRS - E 7mm 400A 55pF - - 4.9mm 7 (Dia.) x 4.9mm
RS Stock No. 170-2912
Mfr. Part No.B72220P3621K101
BrandEPCOS
PHP77.18
Each (On a Reel of 100)
units
1000V 625V 825V - 10000A 540J S20 23mm - 500pF - - 10.3mm 23 (Dia.) x 10.3mm
RS Stock No. 851-8414
Mfr. Part No.MOV-20D821K
BrandBourns
PHP50.40
Each
units
820V - 670V 1355V 100A 265J MOV-20D 23mm - 500pF - - 7.8mm 23 (Dia.) x 7.8mm
RS Stock No. 690-9938
Mfr. Part No.CG0603MLC-05LE
BrandBourns
PHP12.44
Each (In a Pack of 25)
units
- - 5V 25V - - MLC - - 0.5pF 1.6mm 0.8mm - 1.6 x 0.8mm
RS Stock No. 289-6831
Mfr. Part No.B72214S0400K101
BrandEPCOS
PHP28.12
Each (In a Pack of 5)
units
68V 40V 56V 135V 10A 13J Standard 15.5mm 1000A 3.55nF - - 4.9mm 15.5 (Dia.) x 4.9mm
RS Stock No. 669-4370
Mfr. Part No.820422711
PHP73.092
Each (In a Pack of 5)
units
430V 275V 350V 710V 100A 303J WE-VD 23mm 10000A 860pF - - 5.7mm 23 (Dia.) x 5.7mm
RS Stock No. 229-056
Mfr. Part No.VDRS10P275BSE
BrandVishay
PHP30.788
Each (In a Pack of 5)
units
430V 275V 350V 710V 25A 63J NTCLE100E3 13.5mm 2500A 270pF - - 5.4mm 13.5 (Dia.) x 5.4mm
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