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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

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    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

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    Find Your Solution

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

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    Our Culture

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

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    New SCCR Video

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

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