CA Series - High Energy Industrial Disc Varistor

Series: CA
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The CA Series of transient surge suppressors are industrial high-energy disc varistors (MOVs) intended for special applications requiring unique electrical contact or packaging methods provided by the customer.
  • The electrode finish of these devices is solderable and can also be used with pressure contacts.
  • Discs of the same diameter may be stacked.
  • This series of industrial disc varistors are available in three diameter sizes of 32, 40, and 60mm, with disc thicknesses ranging from 1.8mm minimum to 32mm maximum.
  • They offer a wide voltage range of from 130 to 2800 V M(AC)RMS .

Features:
  • Standard disc size nominal 60mm diameter
  • Discs have edge passivation insulation
  • High peak pulse current range 50000A to 70000A
  • Very high–energy capability Wtm880J to 10000J

Access specifications, certifications, check availability and order parts below

Catalog #SizeVMAX AC (V)VMAX DC (V)WTM (J)(ITM 1xAmps (A)VNDC
(V)
VNDC MIN
(V)
VNDC MAX (V)Vc (V)PolarityCo Typ
(pF)
StockSamplesCompare
V112CA6060mm110014003800700001800162020602940Bi-directional2200CheckOrder
V142CA6040mm140017505000700002200202025503600Bi-directional1800CheckOrder
V172CA6060mm170021506000700002700250030304300Bi-directional1500CheckOrder
V202CA6032mm200025007500700003300297036305200Bi-directional1200CheckOrder
V242CA6040mm240030008600700003900351042906200Bi-directional1000CheckOrder
V251CA6060mm25033088050000390354429620Bi-directional10000CheckOrder
V271CA3232mm27536936020000430389473750Bi-directional2200
V271CA4040mm27536940040000430389473730Bi-directional4500
V271CA6060mm27536995050000430389473680Bi-directional9000CheckOrder
V282CA6060mm2800350010000700004700423051707400Bi-directional800CheckOrder
V321CA6060mm320420110050000510462561760Bi-directional7500CheckOrder
V421CA6060mm4205601500700006806107481060Bi-directional6000CheckOrder
V481CA6060mm4806401600700007506708251160Bi-directional5500CheckOrder
V511CA6060mm5106751800700008207359101300Bi-directional5000CheckOrder
V571CA6060mm57573021007000091080510001420Bi-directional4500CheckOrder
V661CA6060mm660850230070000105094011601640Bi-directional4000CheckOrder
V751CA6060mm7509702600700001200108013201880Bi-directional3500CheckOrder
V881CA6060mm88011503200700001500129016502340Bi-directional2700CheckOrder
V131CA32
Obsolete: 2007 -01-10
32mm13017520020000200184228350Bi-directional4700Check
V151CA32
Obsolete: 2007 -01-10
32mm15020022020000240212268410Bi-directional4000Check
V251CA32
Obsolete: 2007 -01-10
32mm25033033020000390354429680Bi-directional2500Check
V251CA40
Obsolete: 2007 -01-10
40mm25033037040000390354429650Bi-directional5000Check
V321CA32
Obsolete: 2007 -01-10
32mm32042039020000510462561850Bi-directional1900Check
V321CA40
Obsolete: 2007 -01-10
40mm32042046040000510462561830Bi-directional3800Check
V421CA32
Obsolete: 2007 -01-10
32mm420560400250006806107481200Bi-directional1500Check
V421CA40
Obsolete: 2007 -01-10
40mm420560600400006806107481130Bi-directional3000Check
V481CA32
Obsolete: 2007 -01-10
32mm480640450250007506708251300Bi-directional1300Check
V481CA40
Obsolete: 2007 -01-10
40mm480640650400007506708251240Bi-directional2700Check
V511CA32
Obsolete: 2007 -01-10
32mm510675500250008207359101440Bi-directional1200Check
V511CA40
Obsolete: 2007 -01-10
40mm510675700400008207359101350Bi-directional2500Check
V571CA32
Obsolete: 2007 -01-10
32mm5757305502500091080510001600Bi-directional1100Check
V571CA40
Obsolete: 2007 -01-10
40mm5757307704000091080510001480Bi-directional2200Check
V661CA32
Obsolete: 2007 -01-10
32mm66085060025000105094011601820Bi-directional1000Check
V661CA40
Obsolete: 2007 -01-10
40mm66085090040000105094011601720Bi-directional2000Check
V751CA32
Obsolete: 2007 -01-10
32mm750970700250001200108013202050Bi-directional800Check
V751CA40
Obsolete: 2007 -01-10
40mm7509701050400001200108013202000Bi-directional1800Check

AN9768 Transient Suppression Devices and Principles

This application note discusses the two major categories of transient suppressors: a) those that attenuate transients, thus preventing their propagation into the sensitive circuit; and b) those that divert transients away from sensitive loads and so limit the residual voltages.

AN9769 An Overview of Electromagnetic and Lightning Induced Voltage Transients

This application note is an overview of the sources and nature of various transient overvoltages, and the problems that may result.

EC608 Considerations for Selecting Littelfuse MOVs and Fuses for Industrial Motor Applications

This application note discusses the first level considerations for applying both Littelfuse Industrial AC Line Metal Oxide Varistors and associated AC line Fuses with a motor protection example.

EC637 Recommendations for Soldering Terminal Leads to MOV Varistor Discs

This technical brief presents the CA and NA series of MOV varistor discs and discusses how they are specifically designed for custom assembly and packaging. It outlines how to take advantage of the excellent performance and reliability of Littelfuse varistor technology by choosing the correct materials and processes when soldering terminal leads to the disc.

pdf icon Combining GDTs and MOVs for Surge Protection of AC Power Lines Application Note

This application note illustrates how to design high performance, cost-effective surge protection for equipment connected to AC power lines. The role of gas discharge tube (GDT) surge arresters specifically designed for AC power line protection is also be discussed.

pdf icon Varistor CA Datasheet

The CA Series of transient surge suppressors are industrial high-energy disc varistors (MOVs) intended for special applications requiring unique electrical contact or packaging methods provided by the customer...

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