Comprehensive Circuit Protection & Power Control Solutions
About Littelfuse, Inc.
Founded in 1927 in Chicago, Illinois, Littelfuse is a leading global provider of circuit protection, power control and sensing solutions.
Headquartered in Rosemont, the company serves over 100,000 customers across industries such as automotive, industrial, telecommunications, renewable energy and consumer electronics.
With a workforce of approximately 16,000 employees and global manufacturing, including a state-of-the-art fuse plant in Mexico, the company is publicly traded (NASDAQ: LFUS) and is known for products like AutoFuse, sensors, switches and semiconductor protectors.
Product Categories
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Design Consultancy & Engineering Support
At McKinsey Electronics, we guide the integration of Littelfuse components into robust designs:
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Protection Architecture Consulting: Optimal fuse, TVS and sensor selection for system safety and reliability.
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Layout & Thermal Optimization: PCB design strategies for current handling, thermal management and surge resilience.
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Compliance & Testing Assistance: Support in UL/CSA/IEC certifications, automotive AEC-Q and reliability validation.
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Global Sourcing & Program Acceleration: Leverage Littelfuse’s global production and distribution to fast-track prototyping and production.
Why Choose McKinsey Electronics
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End‑to‑End Protection Expertise: From fuses and thermistors to sensors and relays, complete reliability support.
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Automotive & Industrial Reach: Aligning with Littelfuse’s standards in EV, telecom, energy storage and industrial automation
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Technology Fusion through Acquisition: Integration of cutting-edge technologies via Littelfuse’s strategic acquisitions (e.g., Hamlin sensors, IXYS, Monolith SiC)
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Global Scale & Delivery Speed: Large production capacity and diversified footprint enable rapid fulfillment and local support.
Let’s Build the Future Together
Need expert-grade circuit protection, sensing or control integration?
Contact McKinsey Electronics today to explore how Littelfuse’s proven platforms, coupled with our engineering services, can protect and power your next-generation systems.
Recent Products
SMCJ70CA
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SMD transient-voltage suppressor (TVS) diode in SMB package; 70 V standoff, 1500 W peak pulse, ideal for telecom and automotive protection.
TPSMF4L33A
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SOD‑123FL TVS diode, 33 V standoff, with low capacitance, suited for ESD protection in sensitive electronics.
Nano² 0451015 (15 A)
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Chip fuse cartridge in 2-SMD package, 65 V rating, fast-blow response for board-level power protection.
Featured Product Categories
High‑Power TVS & Surge Diodes
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Series like SMCJ70CA offering robust surge protection up to 1500 W for harsh environments.
Low‑Capacitance ESD TVS
Devices such as TPSMF4L33A, ideal for safeguarding sensitive data lines in consumer and industrial electronics.