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Welcome to RSP Supply, your trusted Littelfuse distributor for circuit protection products. We provide reliable electrical energy and power control solutions to help you protect vital components of your consumer electronics and industrial facilities.

As a Littelfuse distributor, we offer the industry’s broadest portfolio of circuit protection and surge protection devices. Whether you need heavy-duty switches, power semiconductors, temperature sensors, or power control and sensing products, we have the proven technical expertise to provide comprehensive solutions for safe control of your electrical power.


 Littelfuse offers a wide variety of fuses, including: blade fuses, cartridge fuses, surface mount fuses and resettable fuses. See our full line of Littelfuse Fuses here.

Littelfuse offers a wide range of circuit protection products to serve virtually every market. Our objective is to provide the latest technology to meet our customer’s unique needs. With Littelfuse products, you can rely on transient overvoltage protection and fuse holders that ensure the safe operation of your electrical systems.

At RSP Supply, we take pride in our ability to provide objective advice and recommendations for the best Littelfuse products to suit your needs. Our team of experts is committed to providing exceptional customer service and support.

As your go-to Littelfuse distributor, we offer a comprehensive portfolio of circuit protection products that are designed to protect your critical systems from electrical faults and power surges. With our extensive experience and technical expertise, we can help you select the right products to meet your specific needs.

Thank you for considering RSP Supply as your Littelfuse distributor. We look forward to providing you with the best solutions for your circuit protection needs. Contact us today to learn more about our products and services.