New Temperature Sensor Products Now Available

Littelfuse expands its portfolio of sensors for the electronics market.

Learn More

Protect Critical Water/Wastewater Operations

Learn how to upgrade and protect these critical infrastructures

Discover More

Protect Critical Power Electronics

New Extreme Current Limiting POWR-SPEED line of High-Speed Fuses

Learn More

State of the SiC MOSFET

Device evolution, technology merit, and commercial prospects

View White Paper

White Paper: HWB Series

The HWB Series from Littelfuse offers multi-circuit vehicle power distribution in a rugged, sealed, compact unit. This white paper will provide background on why, and how, to choose the correct assembly.

Download the White Paper

1200V-rated SiC MOSFET Series

Our new silicon carbide MOSFET series is designed, manufactured, and optimized for ruggedness, reliability, and high-frequency switching applications

Learn More

High-Voltage Fuse Blocks, Holders

Eliminates the necessity to compromise on size, to get higher voltage performance

Learn More

Earnings Conference Call

Wednesday, November 1, 2017
10:00 a.m. CST • 11:00 a.m. EST

Littelfuse Webcast

Don’t miss these Littelfuse events!

Find out where and when the most important events in the industry will take place.

See All Events

Littelfuse acquires U.S. Sensor

Acquired thermistors and probe assemblies used in the most demanding temperature sensing applications.

Read Story

Keep Your Distance and Stay Safe!

The new MP8000 Bluetooth® Enabled Overload Relay can be monitored from your smart phone

Discover More