Online Tools

  • Register to access our calculator and see how you can reduce incident energy in your facility by adding the PGR-8800 Arc-Flash Relay to your system.

  • IBU Online Selection Guide

    This selection guide will help you improve safety, reduce cost and minimize downtime by helping you choose the best relay for your application.

  • Our demos and tutorials cover a range of topics and offer step-by-step instructions to help guide you through the task at hand.

  • Download our product catalogs in pdf or Flash format for easy viewing and selection of our automotive, electrical, and electronics products.

  • Download Littelfuse catalog and literature apps for convenient, instant access to the complete offering of our circuit protection products.

  • Select from our featured videos for a quick virtual learning experience that's available 24/7 at a time and place most convenient for you.

  • Need the Littelfuse equivalent of a competitor part? Just enter the competitor part number to see what's available and order a sample.

  • SPD Online Tool

    Surge Protective Devices (SPDs) are not one-size-fits-all devices. This easy-to-use selection guide will quickly pick the optimal SPD size to use for your system.

  • TechPoint is the single destination for all electronics technical resources, offering enhanced search capabilities and filtering content by Application or Industry.