Littelfuse Inc is a global leader in circuit protection with a wide array of electronic components, modules, and subassemblies. It caters to diverse markets including automotive, industrial, telecommunications, data centers, and renewable energy. With a rich history since 1927, the company offers products like fuses, sensors, switches, and protection relays. Littelfuse is known for its innovation in safety and reliability, serving customers through a mix of distributors, direct sales, and representatives. Headquartered in Chicago, Illinois, it operates across the United States, Asia-Pacific, and Europe, emphasizing quality and technological advancement.