New Semiconductor Products Now Available

Expanded power semiconductor and automotive electronics solutions

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Introducing POWR-SPEED ™ High-Speed Fuses

High performance to protect critical power electronics

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Find Relay Treasures

The acquired and website are now part of! Dive in and check out the newly added products.


Video: MDB Series Benefits

Internally bussed, water-proof and dust-proof hard-wired box fuse holder developed for high current loads in harsh conditions.

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Now Available: New Circuit Protection Product Information

Detailed information for automotive electronics and battery end markets.

LSP05GI Series LED Lighting
Surge Protection Modules

10kV/5kA module approved to IEC/EN 61643-11, optimal for use in outdoor lighting

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Compact SMF3.3 Series TVS Diodes for Low-V Applications

Provides 200W@10/1000μs surge capability in a SOD-123FL footprint

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2016 Analyst Day Webcast

Friday, December 9, 2016, 8:00 am CST


Product information for PolySwitch®, PolyZen®, 2Pro®, battery mini-breakers and more.

Detailed product specifications, agency approvals, application notes and other technical resources.

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New Semiconductor Product Information

Newly acquired semiconductor product lines now available: Thyristors, TVS Diodes, Ignition IGBTs.

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Finding Relays is easier than ever.

Over 1000 parts from our MotorSaver, PumpSaver, and SSAC lines join the Littelfuse lineup! Get information on all your Littelfuse relays and controls in one place.
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