Circuit Protection, Fuses, Power Control & Sensing Solutions (original) (raw)

Featured Products

Tactile Switches

KSC2 Dual Circuit Technology with 3.5 mm Actuator Height

The Littelfuse|C&K innovative tactile switch series offers a 3.5 mm actuator height, lower than the KSC4 DCT with its 5.2 mm actuator height. Combined with single pole double throw (SPDT) functionality and the Electrical Height specification, the KSC2 DCT delivers unmatched functionality in a compact, space-saving design.

AEQ101 T&R

Series: TPSMB - TPSMB150CA

The TPSMB150CA, part of the TPSMB series, is AEC-Q101 qualified for automotive use. This TVS diode protects sensitive automotive components from transient voltage, ensuring reliable performance.

SRP1 Series Solid-State Relays

High-Endurance Industrial Solid-State Relays

High reliability, fast switching and superior uptime for the most demanding applications that demand extensive on/off switching.

Electronic On/Off Switches

HCC & HCD Series Definite Purpose Contactors

Look to Littelfuse when your application demands a compact, long-lived contactor controlled by a thermostat, relay, or push button.

Bolt-Down Single Fuse Holders

ZCASE® SMZ Series Fuse Holder

The ZCASE® SMZ Series Bolt-Down Fuse Holder simplifies installation by enabling ZCASE® high-current fuses to mount directly on an alternator, battery switch, or relay, reducing wiring and parts.

AF0025 Series Arc-Flash Relay

Compact Arc-Flash Detection & Protection Solutions

Space-saving AF0025 relays provide ideal solutions for protecting combiner boxes and panels against damaging arc flashes. The relays work in ac or dc systems and feature internal failsafe mechanisms.

TTP Platform

Series: TTP

The TTape platform is a distributed temperature monitoring technology for battery packs that helps to improve the detection of localized cell overheating. This helps to increase the lifetime of batteries and provides thermal runaway protection.

Empowering a Sustainable, Connected, and Safer World

Education & Insights

Product Test Report

February 26, 2025

Littelfuse Solid-State Relays Quality Test Report

Learn how endurance testing and performance evaluation play a vital role when choosing an SSR.

BESS Capabilities

January 7, 2025

Explore Our Battery Energy Storage Systems Capability Guide

Learn how battery energy storage systems make large renewable energy projects more practical.

PCIM Europe 2025

The PCIM Europe is the world's leading exhibition and conference for power electronics, intelligent motion, renewable energy, and energy management.

Intersolar Europe 2025 Tradeshow

Intersolar Europe demonstrates the enormous vitality of the solar market. With its extensive accompanying program, Intersolar Europe attracts an...