About Littelfuse Technology

Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 17,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927.

Featured Products


The Littelfuse TMOV and iTMOV thermally protected varistors represent a new development in integrated circuit protection. Both versions are comprised of radial leaded MOVs (Metal Oxide Varistors) with an integrated thermally activated element designed to open in the event of overheating due to the abnormal overvoltage, limited current, conditions outlined in UL 1449.
The iTMOV varistor differs from the TMOV varistor by the inclusion of a third party lead for the purpose of indicating that the MOV has been disconnected from the circuit. This lead facilitates connection to monitoring circuitry.

PSR Bolted Blade series

The PSR Bolted Blade series is a POWR-SPEED® high-speed, square body fuse specifically designed for the protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs, and other solid-state devices that are typically used in power conversion and power conditioning equipment. 

1812L series

The 1812L series device provides surface mount overcurrent protection for applications where resettable protection is desired.

K12S High Performance SMT

The K12S High Performance SMT from C&K is an illuminated keyswitch that provides an excellent tactile feel for the user. It can be IP40 or IP67 sealed, making it ready for use in any industrial, automotive or medical environment – and it complies with all RoHS requirements.

TPSMB series 

Products within the TPSMB series have been qualified to AEC-Q101, and are appropriate for use in Automotive applications. The TPSMB series Transient Voltage Suppression (TVS) Diode offers secondary protection of sensitive automotive and other electronics from transients induced by load dump and other transient voltage events.

Contact Us



Rutronik Europe

Rutronik Elektronische Bauelemente GmbH
Industriestrasse 2
D-75228 Ispringen

+49 (7231) 801-0

+49 (7231) 822-82