LittleFuse

Littelfuse offers proven, reliable overcurrent solutions. Our global reputation is built from years of engineering and design expertise. Our fuses and devices safeguard sensitive electronic systems. From automotive to industrial applications, our products meet global standards, protecting equipment worldwide.

Rely on Littlefuse LED and incandescent panel lights and pilots lights to alert you when a piece of equipment starts, stops, or requires maintenance.

Littelfuse produces pilot lights that mount directly in dashboards, as well as the rocker switches, lamp sockets, and pigtail assemblies required to make the best use of the lights. There alarms include sensors and electromechanical buzzers, and they can be wired to pilot indicator lights.

Diodes, TVS, diode arrays, relays, surge protectors, SIDACtor® protection thyristors, and varistors provide overvoltage protection to PCBs, LED arrays, and other delicate electronics. The devices also help save power by switching current efficiently and limiting current leakage. Rely on Littelfuse products when designing, building, and servicing electrical systems.

Each breaker box or fusible switch panel is UL Listed and meets NEC coordination requirements. Whether you order standard models or work with us to customize panels for your unique construction project, avoid time, money, and code compliance headaches with Littelfuse panels. The Littelfuse® LPS Series provides a simple and economical solution for applications that require selective coordination and shunt trip capabilities. Utilizes Class J time-delay fuses that are easily coordinated with other system overcurrent devices. The shunt trip capability allows the LPS Series to meet the ANSI/ASME standard that requires power to be automatically disconnected before water is turned on by the fire safety system.

DC power distribution modules (PDMs) allow passenger and commercial vehicle makers to reduce the number and complexity of wiring harnesses while boosting circuit protection. Each PDM accepts a mix of fuses and relays for 12 V systems and higher. Littlefuse supplements our wide range of configurable, hardwired, fuse-only, and compact POWR-BLOK PDMs with fuse holders and junction box bolts.

Relays, contactors, and transformers reliably control the flow and distribution of electrical current, ensuring a safer and optimal operation. You will find our products protecting people and equipment across a wide range of industries, including construction, food and beverage, eMobility, HVAC, mining, manufacturing, renewable energy, oil and gas extraction, and transportation.

Electronic devices, industrial processes, and commercial and passenger vehicles rely increasingly on sensors to monitor and control their operation. Littelfuse meets this growing demand for highly sensitive, finely tuned, and dependable devices with wide ranges of thermistors, RTD probes, reed sensors, and Hall effect sensors.

Rotary position sensors made by Littelfuse attach to moving parts. As magnets in the sensors rotate along with the parts, 2-D or 3-D Hall effect sensors output data on angles of rotation as voltages to control modules and black boxes. Pump level sensors made Littelfuse typically use probes and electrodes to detect the presence or absence of liquid. Electrical pulses emitted by the probes return to the electrodes slower when liquid is present.

Operator-controlled, pressure, temperature, and mechanical switches must meet the highest standards for usability and reliability. Littelfuse switches are used in vehicle, industrial, HVAC, and electronic device applications. We also offer a full range of sockets, plugs, coils, and other connectors.