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. 170-9997
Mfr. Part No.V250LA10P
BrandLittelfuse
TWD7.00
Each (In a Bag of 1000)
units
429V 250V 330V 650V 25A 40J LA 12.5mm 2500A 220pF - - 5.6mm 12.5 (Dia.) x 5.6mm
RS Stock No. 800-7040
Mfr. Part No.V250LA10P
BrandLittelfuse
TWD13.80
Each (In a Pack of 10)
units
429V 250V 330V 650V 25A 40J LA 12.5mm 2500A 220pF - - 5.6mm 12.5 (Dia.) x 5.6mm
RS Stock No. 878-1520
Mfr. Part No.TMOV20RP385E
BrandLittelfuse
TWD49.60
Each (In a Pack of 300)
units
682V 385V 505V 1025V - - TMOV - 10000A 700pF - - - 28 (Dia.) x 31mm
RS Stock No. 760-7030
Mfr. Part No.V480LA80BP
BrandLittelfuse
TWD38.40
Each (In a Pack of 5)
units
670 → 790V 480V 640V 1160V 100A 180J LA 23mm 6500A 550pF - - 7.3mm 23 (Dia.) x 7.3mm
RS Stock No. 876-8158
Mfr. Part No.V131HB34
BrandLittelfuse
TWD295.00
Each
units
184.5V 130V 175V 205V - - HB34 - 40000A 10nF 37mm - - 37 x 47.5 x 5.7mm
RS Stock No. 170-9984
Mfr. Part No.V480LA80BP
BrandLittelfuse
TWD24.30
Each (In a Bag of 400)
units
670 → 790V 480V 640V 1160V 100A 180J LA 23mm 6500A 550pF - - 7.3mm 23 (Dia.) x 7.3mm
RS Stock No. 760-6927
Mfr. Part No.V24ZA50P
BrandLittelfuse
TWD29.60
Each (In a Pack of 5)
units
19.2 → 26V 14V 18V 43V 20A 100J ZA 23mm 2000A 18nF - - 5mm 23 (Dia.) x 5mm
RS Stock No. 800-7052
Mfr. Part No.V250LA40AP
BrandLittelfuse
TWD27.80
Each (In a Pack of 10)
units
429V 250V 330V 650V 100A 130J LA 23mm 6500A 1nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 878-1732
Mfr. Part No.V571DA40
BrandLittelfuse
TWD1,638.00
Each
units
1001V 575V 730V 1480V - - DA - 40000A 2.2nF 62mm - - 62 x 67 x 15mm
RS Stock No. 878-1303
Mfr. Part No.V271DA40
BrandLittelfuse
TWD1,307.30
Each (In a Pack of 12)
units
473V 275V 369V 730V - - DA - 40000A 4.5nF 62mm - - 62 x 67 x 15mm
RS Stock No. 878-1722
Mfr. Part No.V131DA40
BrandLittelfuse
TWD1,325.00
Each
units
225.5V 130V 175V 345V - - DA - 40000A 10nF 62mm - - 62 x 67 x 15mm
RS Stock No. 170-9981
Mfr. Part No.V430CH8T
BrandLittelfuse
TWD20.30
Each (On a Reel of 1000)
units
389 → 473V 275V 369V 710V 10A 8J CH - 250A 50pF 8.51mm 5.26mm 2.03mm 8.51 x 5.26 x 2.03mm
RS Stock No. 543-4880
Mfr. Part No.V130LA20AP
BrandLittelfuse
TWD32.00
Each (In a Pack of 5)
units
228V 130V 175V 340V 100A 70J LA 23mm 6500A 1.9nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9904
Mfr. Part No.V130LA20AP
BrandLittelfuse
TWD18.40
Each (In a Bag of 500)
units
228V 130V 175V 340V 100A 70J LA 23mm 6500A 1.9nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 878-1980
Mfr. Part No.TMOV20RP275E
BrandLittelfuse
TWD60.00
Each (In a Pack of 10)
units
473V 275V 350V 710V - - TMOV - 10000A 900pF - - - 28 (Dia.) x 31mm
RS Stock No. 543-4969
Mfr. Part No.V150LA20AP
BrandLittelfuse
TWD32.00
Each (In a Pack of 5)
units
268V 150V 200V 395V 100A 80J LA 23mm 6500A 1.6nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9909
Mfr. Part No.V150LA20AP
BrandLittelfuse
TWD16.60
Each (In a Bag of 500)
units
268V 150V 200V 395V 100A 80J LA 23mm 6500A 1.6nF - - 5.6mm 23 (Dia.) x 5.6mm
RS Stock No. 170-9966
Mfr. Part No.V24ZA50P
BrandLittelfuse
TWD16.00
Each (In a Bag of 500)
units
19.2 → 26V 14V 18V 43V 20A 100J ZA 23mm 2000A 18nF - - 5mm 23 (Dia.) x 5mm
RS Stock No. 760-7015
Mfr. Part No.V430CH8T
BrandLittelfuse
TWD45.40
Each (In a Pack of 5)
units
389 → 473V 275V 369V 710V 10A 8J CH - 250A 50pF 8.51mm 5.26mm 2.03mm 8.51 x 5.26 x 2.03mm
RS Stock No. 170-9999
Mfr. Part No.V250LA40AP
BrandLittelfuse
TWD17.10
Each (In a Bag of 500)
units
429V 250V 330V 650V 100A 130J LA 23mm 6500A 1nF - - 5.6mm 23 (Dia.) x 5.6mm