Connect with us at PCIM 2026
June 9-11, Nuremberg. Hall 9, booth 402.
Learn about the latest solutions in AI data centers, BESS, and grid technologies.
Ensuring Safety Around Water Features
Keep splashers safe from electrical shock and be code-ready. SB4000 class A GFCI meets NEC requirements for 30 A pool and spa applications.
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Aerospace & Defense Connectors
Aerospace & Defense Connectors are now available on Littelfuse.com—expanding our portfolio with rugged, high reliability solutions for mission critical applications.
Learn MoreIntroducing C&K® Switches
C&K Switches products are now on Littelfuse.com, delivering a unified portfolio of switching solutions with expanded expertise and global support.
Learn MoreFeatured Products
IX4352NEAU Gate Driver
Automotive Gate Driver with Negative Gate Bias & Protections
AEC-Q100 qualified gate driver with separate 9 A source/sink outputs, integrated protections, and an internal charge pump delivering −10 V bias for robust, high-dv/dt EV inverter designs.
K5V Series Tactile Switch
Sharp Tactile Feedback with Integrated LEDs
High-reliability tactile switch with gold-plated contacts and integrated LEDs. Long travel with crisp tactile/audible feedback in a compact footprint for status indication.
59150 Flange-Mount Reed Sensor
Compact, Sealed Sensor for Harsh or Concealed Environments
Compact, IP67-sealed reed sensor rated to 265 Vac/300 Vdc. Enables reliable non-contact sensing in space-constrained designs requiring low power operation and resistance to moisture and contaminants.
LFRU Fuse Reducers
Adaptable, Cost-Saving Fuse-to-Clip Solutions
Adapts lower-rated fuses into higher-rated clips to prevent overfusing and simplify inventory. Ideal for transformers, VSDs, MCCs, and test or temporary current-limiting applications.
Residual Current Protection
EV Charging Protection
Compact and reliable, these monitors detect AC and DC leakage in EV charging systems in real time—preventing hazards and ensuring continuous safety.
Empowering a Sustainable, Connected, and Safer World
Success Story
Smart Protection for Smarter Flossers
A health care OEM designing a compact, USB-C rechargeable water flosser needed to manage overcurrent, overheating, and moisture risks—without compromising space or safety.
Success Story
Sealed Tactile Switch Powers Reliability
A power tool manufacturer needed a durable, compact switch to activate the battery-level indicator on its next-gen cordless drill.
Success Story
TVS Diodes Fortify USB-C Ports
A leading laptop manufacturer needed to protect USB Type-C ports from ESD, surges, and other transients without compromising signal integrity or consuming excess board space.
Education & Insights
Technical Paper
How to Size a Heatsink for Industrial Solid State Relays
Use this guide to select the right heatsink for panel-mounted SSRs using practical thermal methods.
Selection Guide
Quick Fuse Selection Guide
Find the right fuse for your electronic applications.
Electrical Safety Month Webinar
Code clarity for pool and spa professionals. Product alignment for equipment manufacturers. Smarter stocking for distributors.
Solar New Energy Convention (SNEC)
Littelfuse will highlight advanced protection, control, and connectivity solutions that help OEMs and system designers build safer, more reliable,...
Littelfuse Expands Its Shock Block® Ground-Fault Circuit Interrupter (GFCI) series with the SB4000
New compact GFCI device offers protection for systems with a maximum full load current up to 30A.
Littelfuse to Host 2026 Investor Day Today
Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, will host an...