Introducing 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.
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Find the Right Fuse Holder Fast
Use our online selection guide to quickly identify the right automotive fuse holder, then check distributor stock and access fuse kits and resources.
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NANO² SMD 415 Series Fuse
Electronic Design News (EDN) has named the Littelfuse NANO²® 415 Series Surface Mount Fuse the winner of the 2025 Product of the Year Award in the Passives category.
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Explore Electrical Safety
Explore electrical safety principles and protection strategies that keep workers safe, reduce downtime, prevent damage, and support reliable industrial operations.
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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系列轻触开关
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.
零序电流保护
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.
为可持续发展、互联互通和更安全的世界提供动力
成功案例
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.
成功案例
密封轻触开关提高可靠性
一家电动工具制造商需要一款耐用、紧凑的开关来激活其下一代无绳电钻上的电池电量指示器。
成功案例
瞬态抑制二极管强化USB-C端口
一家领先的笔记本电脑制造商需要在不影响信号完整性或占用过多电路板空间的情况下保护USB Type-C端口免受ESD、浪涌和其他瞬态现象的影响。
教育与见解
2026年印度electronica电子元器件展
electronica India brings together global electronics manufacturers, visionaries, and innovators from the world over to shape the future of technology.
Littelfuse Launches High-Voltage TPSMC,TPSMD, TP5.0SMDJ TVS Diodes for Automotive Power Protection
New automotive-grade TVS diodes reduce BOM cost while protecting GaN/SiC MOSFETs and IGBTs in BDU, HVAC, and PTC systems.
Littelfuse Appoints Anne-Marie D’Angelo as Chief Legal Officer and Corporate Secretary
Littelfuse公司（NASDAQ：LFUS）是开发可实现安全高效电能传输的智能解决方案的领导者。公司今日宣布…