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  • Littelfuse Statement on COVID-19 - Last Updated: March 1, 2021.Learn More
    LST Varistor

    LST Series SPD Thermally Protected Varistor

    Ideal for Type 1 and Type 2 SPD devices used in Residential, Commercial, and Industrial applications

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    Reed Relays

    New Reed Relays

    Offer Reliable Switching of AC and DC Small Signal to High Voltage Loads.

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    Hartland Controls

    Littelfuse Acquires Hartland Controls

    Hartland Controls is a manufacturer and leading supplier of electrical components used primarily in HVAC/R and other industrial applications

    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

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    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

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    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

    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
    SCCR

    New SCCR Video

    Learn the steps for calculating and increasing the SCCR in your panel.

    Watch Now
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