NA Series - NA Series - High Energy Industrial Square Disc Varistor Series

Series: NA
Questions? Contact Littelfuse Support
External overview image
Roll Over to Zoom
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 NA Series of transient surge suppressors are varistors (MOVs) in square disc form, intended for special industrial high-energy 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 may also be stacked.
The NA Series varisor is a square 34mm device, with thicknesses ranging from 1.8mm minimum for the 130V device to 7.5mm maximum for the 750V device. For information on mounting considerations refer to Application Note AN 8820.
 
This disc is also available with encapsulation and PCB leads.

Access specifications, certifications, check availability and order parts below

Catalog #VMAX AC (V)VMAX DC (V)WTM (J)(ITM 1xAmps (A)VNDC
(V)		VNDC MIN
(V)		VNDC MAX (V)Vc (V)PolarityCo Typ
(pF)		Compare
V131NA3413017527040000200184228345Bi-directional10000
V141NA3414018829140000220198248375Bi-directional9000
V151NA3415020030040000240212268405Bi-directional8000
V251NA3425033037040000390354429650Bi-directional5000
V271NA3427536940040000430389473730Bi-directional4500
V321NA3432042046040000510462561830Bi-directional3800
V421NA34420560600400006806107481130Bi-directional3000
V481NA34480640650400007506708251240Bi-directional2700
V511NA34510675700400008207359101350Bi-directional2500
V571NA345757307704000091080510001480Bi-directional2200
V661NA3466085090040000105094011601720Bi-directional2000
V751NA347509701050400001200108013202000Bi-directional1800
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
V271NA34 INDUSTRIAL VARISTOR HIGH ENERGY SQUARE RoHS No 06/14/2005 PbFree No
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.

pdficon 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.
pdficon 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.
pdficon Varistor NA Datasheet

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