Littelfuse Statement on Coronavirus (COVID-19) - Last Updated: Jan 5, 2021.Learn More
1 Amp Fault Protected Solid State Relay

1 Amp Fault Protected Solid State Relay

Ideal for smart homes, building automation, instrumentation, and battery powered applications

Learn More
CSE Award

PSR High-Speed Fuse Line Wins CSE’s Award

New bladed high-speed fuse series has taken the silver award in the Electrical category in Consulting-Specifying Engineer’s 2020 Product of the Year program

Learn More
Low Rho series

PolySwitch Low Rho SMD PPTC

Added 23 new ratings to the existing product line, making it the broadest PPTC portfolio available

Learn More

MITI-7 & MISM-7 7mm Ultra-Miniature Reed Switch

Is a normally open switch with a 7 mm x 1.8 mm (0.276” x 0.071”) glass envelope, which can switch up to 10 W

Learn More
DC Disconnect Switch Launch

LS6 and LS6R Dc Disconnect Switches

Compact, energy-efficient disconnect switches break or resume the flow of current safely in solar and energy storage systems, oil and gas, railways and UPS

Learn More
PDM Brochure Banner

Power Distribution Module Brochure

The DC Power Distribution brochure provides a comprehensive overview of important product criteria to help choose the proper products for your application.

Learn More

Earnings Conference Call

Wednesday, Feb 3, 2021
10:00 a.m. ET • 9:00 a.m. CT

Join Webcast

Find Your Solution

Discover our broad and deep portfolio of products, where you'll find the right solution for your application.

Browse Products

Our Culture

Learn about our Core Values and the initiatives that make Littelfuse a great workplace and business partner.

View Company Culture
Product Capabilities

New Building Automation Microsite Launch

Visit new microsite for insights on improving your building automations systems efficiency and convenience

Learn More