Littelfuse is a global leader in circuit protection, power controls, and sensing technologies. Founded in 1927 and headquartered in Chicago, the company serves over 100,000 end customers across more than 15 countries with a workforce of over 17,000 associates. Its origins trace to the invention of the first small, fast-acting protective fuse, designed to address a critical safety problem in electronic instruments.
The company operates across industrial, transportation, and electronics markets, including sectors such as electric vehicles and renewable energy systems. Its portfolio spans billions of electronic components that support applications in these industries. Littelfuse holds a position as the world leader in circuit protection.
For data center professionals, Littelfuse's expertise in power controls, circuit protection, and sensing technologies is directly relevant to the infrastructure that underpins modern facilities. The company's products are engineered to improve safety, reliability, and performance - qualities essential to the operation of data center power and electronic systems.






