Founded in 1927, Littelfuse has a long history of pioneering innovative products and services to serve the engineering needs of customers and industries. From the invention of the first fast-acting protective fuse to prevent damage and sensitive test meters, the company has grown to define the standards of the circuit protection industry and become a global leader in circuit protection, power control, and sensing platforms.

Questions? Contact our experts at 1-800-333-7519 or email to answer questions or help you with your applications.

Product Series/Models


Fuses, Fuse blocks, holders, and accessories
DC solenoids/relays, Switches


Circuit Protection