For eight decades, we have been developing industry-leading circuit protection products by working closely with our customers. These unique partnerships have led to such innovations as the first small, fast-acting protective fuse in 1927, the first automotive blade fuses and the world’s smallest SIDACtor® device.

Littelfuse solutions can be found in virtually every product that requires electrical energy, from automobiles to computers to telecom devices. By combining our extensive product line with the knowledge of our application experts, we have the unique ability to evaluate customer needs and deliver the right solution. See history in microsite.