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. 643-9965
Mfr. Part No.AVR-M1005C080MTAAB
BrandTDK
$0.378
Each (In a Pack of 10)
units
8V - 5.5V 14V 1A 0.04J - - 25A 650pF 1mm 0.5mm - -
RS Stock No. 644-0460
Mfr. Part No.AVRL101A3R3FTA
BrandTDK
$0.658
Each (In a Pack of 10)
units
27V - 10V - - - - - - 3.3pF 1mm 0.5mm 0.5mm 1 x 0.5 x 0.5mm
RS Stock No. 644-0347
Mfr. Part No.AVR-M2012C220KT6AB
BrandTDK
$0.508
Each (In a Pack of 10)
units
22V - 16V 38V 5A 0.3J - - 100A 800pF 2mm 1.25mm - -
RS Stock No. 644-0246
Mfr. Part No.AVR-M1608C270KT2AB
BrandTDK
$0.502
Each (In a Pack of 10)
units
27V - 19V 42V 2A 0.1J - - 20A 160pF 1.6mm 0.8mm - -
RS Stock No. 644-0303
Mfr. Part No.AVR-M1608C270MTABB
BrandTDK
$0.502
Each (In a Pack of 10)
units
27V - 17V 52V 2A 0.05J - - 2A 15pF 1.6mm 0.8mm - -
RS Stock No. 644-0549
Mfr. Part No.AVRL161A3R3FTA
BrandTDK
$0.428
Each (In a Pack of 10)
units
27V - 10V - - - - - - 3.3pF 1.6mm 0.8mm 0.8mm 1.6 x 0.8 x 0.8mm
RS Stock No. 644-0325
Mfr. Part No.AVR-M2012C120MT6AB
BrandTDK
$0.497
Each (In a Pack of 10)
units
12V - 7.5V 20V 5A 0.2J - - 60A 1nF 2mm 1.25mm - -
RS Stock No. 644-0189
Mfr. Part No.AVR-M1608C220KT6AB
BrandTDK
$0.42
Each (In a Pack of 10)
units
22V - 16V 34V 2A 0.1J - - 30A 560pF 1.6mm 0.8mm - -
RS Stock No. 644-0123
Mfr. Part No.AVR-M1608C120MT6AB
BrandTDK
$0.42
Each (In a Pack of 10)
units
12V - 7.5V 20V 2A 0.09J - - 50A 1.05nF 1.6mm 0.8mm - -
RS Stock No. 644-0022
Mfr. Part No.AVR-M1005C080MTACB
BrandTDK
$0.387
Each (In a Pack of 10)
units
8V - 5.5V 19V 1A 0.01J - - 1A 33pF 1mm 0.5mm - -
RS Stock No. 644-0224
Mfr. Part No.AVR-M1608C270KT6AB
BrandTDK
$0.509
Each (In a Pack of 10)
units
27V - 19V 42V 2A 0.1J - - 48A 430pF 1.6mm 0.8mm - -
RS Stock No. 644-0561
Mfr. Part No.AVRL161A6R8GTA
BrandTDK
$0.647
Each (In a Pack of 10)
units
27V - 10V - - - - - - 6.8pF 1.6mm 0.8mm 0.8mm 1.6 x 0.8 x 0.8mm
RS Stock No. 644-0101
Mfr. Part No.AVR-M1608C080MTAAB
BrandTDK
$0.399
Each (In a Pack of 10)
units
8V - 5.5V 15V 2A 0.09J - - 30A 650pF 1.6mm 0.8mm - -
RS Stock No. 644-0369
Mfr. Part No.AVR-M2012C390KT6AB
BrandTDK
$0.495
Each (In a Pack of 10)
units
39V - 28V 62V 5A 0.3J - - 100A 430pF 2mm 1.25mm - -
RS Stock No. 644-0044
Mfr. Part No.AVR-M1005C120MTAAB
BrandTDK
$0.378
Each (In a Pack of 10)
units
12V - 7.5V 20V 1A 0.05J - - 10A 130pF 1mm 0.5mm - -
RS Stock No. 644-0000
Mfr. Part No.AVR-M1005C080MTABB
BrandTDK
$0.387
Each (In a Pack of 10)
units
8V - 5.5V 15V 1A 0.02J - - 3A 100pF 1mm 0.5mm - -