Reliable Solutions for Power Tool Design
Littelfuse components enable efficient switching, precise control, and robust circuit protection in power tool design. Explore our Power Tools application page to learn more.
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Newest Fuse Plant Boosts Capacity
Our newest fuse manufacturing plant in Piedras Negras, Coahuila, Mexico delivers precision with innovative automation and also furthers our sustainability commitment.
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Product Cross-Reference Tool
Quickly compare Littelfuse parts against those of other manufacturers to find the right specifications, features, and benefits for your application.
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Named a 2025 Most Responsible Company
For the third consecutive year, Newsweek and Statista name Littelfuse as an industry leader dedicated to driving meaningful global impact.
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電子機器関連オン/オフスイッチ
HCC & HCD シリーズ特定用途向け接触器
Look to Littelfuse when your application demands a compact, long-lived contactor controlled by a thermostat, relay, or push button.
タクタイルスイッチ
KSC2 Dual Circuit Technology with 3.5 mm Actuator Height
The Littelfuse|C&K innovative tactile switch series offers a 3.5 mm actuator height, lower than the KSC4 DCT with its 5.2 mm actuator height. KSC2 DCT は、SPDT (Single Pole Double Throw) 機能と電気高仕様を組み合わせることで、コンパクトで省スペースな設計で比類のない機能性を提供します。
AEQ101 T&R
Series: TPSMB - TPSMB150CA
The TPSMB150CA, part of the TPSMB series, is AEC-Q101 qualified for automotive use. This TVS diode protects sensitive automotive components from transient voltage, ensuring reliable performance.
SRP1 Series Solid-State Relays
High-Endurance Industrial Solid-State Relays
High reliability, fast switching and superior uptime for the most demanding applications that demand extensive on/off switching.
ボルトダウン シングルヒューズホルダー
ZCASE® SMZ Series Fuse Holder
The ZCASE® SMZ Series Bolt-Down Fuse Holder simplifies installation by enabling ZCASE® high-current fuses to mount directly on an alternator, battery switch, or relay, reducing wiring and parts.
AF0025 シリーズアーク放電リレー
コンパクトなアーク放電検出 & 保護ソリューション
省スペースの AF0025 リレーは、有害なアーク放電からコンバイナーボックスとパネルを保護するのに理想的なソリューションです。このリレーは AC または DC システムで作動し、内部にフェイルセーフ機構を備えています。
TTP Platform
シリーズ: TTP
The TTape platform is a distributed temperature monitoring technology for battery packs that helps to improve the detection of localized cell overheating. これにより、バッテリーの寿命が延び、熱暴走保護が提供されます。
持続可能で接続性の高い、より安全な世界を実現するために
Applications Spotlight
Power Train Components
Explore how Littelfuse solutions help improve the safety, reliability, and functionality of the various systems that make up the modern electric vehicle’s power train.
成功事例
Shock Block Offers Maximum Protection
Winemaking facilities often create damp environments. Read Peller Winery's approach to protect employees from possible electric shock.
ソリューションのスポットライト
代替エネルギー：グリーン水素
グリーン水素の製造、業界の最新動向、グリーン水素のバリューチェーン構築のためのリテルヒューズのソリューションについてご紹介します。
教育とインセット
アプリケーションガイド
車載用電子機器アプリケーションガイド
This guide provides key circuit protection products for your automotive application.
Product Test Report
Littelfuse Solid-State Relays Quality Test Report
Learn how endurance testing and performance evaluation play a vital role when choosing an SSR.
Intersolar Europe 2025 Tradeshow
Intersolar Europe demonstrates the enormous vitality of the solar market. With its extensive accompanying program, Intersolar Europe attracts an...
Littelfuse Introduces IXD2012NTR High-Side and Low-Side Gate Driver
Delivers 1.9 A source and 2.3 A sink output for robust gate drive performance and enhanced switching efficiency
Littelfuse to Release First Quarter Financial Results After Market Close on April 29
Littelfuse, Inc. (NASDAQ: LFUS) は、持続可能で接続性の高い、より安全な世界を実現する多角的な工業技術製造企業です。