At Littelfuse, we focus on what we do best- developing and manufacturing devices that protect electronic circuits and applications from harm caused by overcurrent and overvoltage events. It's this focus that has enabled us to consistently lead the industry in innovative, high-quality circuit protection solutions.

Open the cover on nearly any electronic device, look under the hood of nearly any automobile or check the electrical infrastructure of nearly any commercial building. Just about everywhere you look, you'll find a Littelfuse product. In computers, wire harnesses, cell phones, telecommunications equipment and central offices, appliances, skyscrapers and satellites - all these and many more are safeguarded by Littelfuse technology.

Today, we offer the broadest line of circuit protection products in the world for both overcurrent and overvoltage applications. As the leading global provider of circuit protection devices for the automotive industry and the third largest producer of power fuses in North America, we deliver the innovation, expertise, quality and service you would expect from an industry leader.