Littelfuse offers innovative circuit protection solutions. Wherever you look, Littelfuse is there. Streetlights, office buildings, cars, trucks, factories, computers, heating and cooling systems, electronic games, telecommunications equipment, even the satellites in the sky are protected by Littelfuse circuit protection products. For the past 80 years, Littelfuse has designed, engineered, and invented circuit protection technology. Littelfuse strives to meet the ongoing need for smaller, faster, and safer circuit protection.