Industrial Solid-State Relays

Get up to 3X more performance with higher thermal efficiency.

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Industry’s First Asymmetrical TVS Diode

Ideal for high-efficiency power solutions in data center, EV infrastructure, and industrial equipment

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Cole Hersee 100 Year Anniversary

Since 1924, the Cole Hersee brand has been a leader in the development of heavy-duty electrical products for the vehicle industry – collaborating on many industry standards and earning a reputation for quality and value.

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Ultra Junction X4-Class Power MOSFET

Ultra Junction X4-Class Power MOSFET

Delivers industry-leading low on-state resistance, enabling simplified design and enhanced performance in battery energy storage and power supply applications

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KSC DCT Tactile Switch

Delivers SMT and IP67 for high-efficiency performance in automotive, consumer, medical, and industrial applications

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America's Most Responsible Companies 2024

Newsweek named Littelfuse one of America’s Most Responsible Companies.

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Connect with us at electronica 2024

November 12-15, 2024
Munich, Germany
Hall C3, Booth 340

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NEW! Sealed ZCASE®

NEW! Sealed ZCASE®

This fuse holder series provides robust electrical distribution for up to 6 ZCASE® fuses. Designed to withstand harsh environmental conditions, it ensures reliable performance in demanding applications with its durable, sealed construction.

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Q3 2024 Earnings Call

Earnings Conference Call

Wednesday, October 30, 2024
10:00 a.m. ET • 9:00 a.m. CT

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Explore Our eCatalog Site and Find the Right Solution for Your Application

Access our product solution guides in an interactive mobile friendly format on our eCatalog site.

eCatalogs Library

SRP1 Series Broadens Our Switching Expertise

Littelfuse has a broad line of on-board and off-board solid-state relays. The industrial products are ideal for commercial food & beverage equipment, and more.

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America's Most Responsible Companies 2024

Newsweek named Littelfuse one of America’s Most Responsible Companies.

Read More