
Littelfuse Inc.
Rosemont, IL, United States
About
Littelfuse provides battery-related components and systems including battery management system (BMS) components and automotive-grade current sensors, as well as protection devices for lithium batteries, heavy-duty HD battery disconnect switches, and high-voltage fuses for EVs and heavy-duty vehicles. Its offerings cover automotive/eMobility, industrial tools, and consumer electronics, with additional solutions for energy storage systems and related applications. In short, Littelfuse makes and supplies battery monitoring, protection, switching, and connection components used across automotive, industrial, and consumer sectors.
Supply Chain Segments
Location Info
- HQ
- 6133 North River Road, Suite 500Rosemont, IL, United States
- Manufacturing
- Piedras Negras, Coahuila, Mexico
- R&D
- Mount Prospect, Illinois, United States
Quick Facts
- Founded
- 1927
- Team Size
- 2000+
- Funding
- Private
- Last Updated
- Oct 6, 2026




