BOURNS CB Series Thermal Cut-Off Fuse, 25A, 28V, 85°C

The BOURNS CB Series Thermal Cut-Off Fuse (TCO) is a critical miniature protection device designed to safeguard sensitive electronics from thermal and electrical faults. Rated at 25A and 28V DC, this compact fuse offers robust overtemperature and overcurrent protection, making it an indispensable component for modern battery management systems.

It is engineered specifically for the protection of lithium polymer and prismatic cells, controlling abnormal or excessive current virtually instantaneously within its rated limits. This rapid response helps to prevent catastrophic failures, enhancing the safety and longevity of the battery packs it protects. The fuse features a precise functioning temperature of 85°C and will reset once the temperature drops below a minimum of 40°C.

Constructed with blade terminals for easy and secure installation, this thermal cutoff is part of BOURNS' reliable CB Series. Its miniature form factor, combined with a high-performance design, makes it suitable for space-constrained applications where reliable protection is non-negotiable. The absence of SVHC (Substances of Very High Concern) as of the latest assessment further ensures its compliance with environmental and safety regulations.

Key Applications

• Protection for lithium polymer (LiPo) battery packs
• Safety circuits for prismatic lithium-ion cells
• Overcurrent and overtemperature protection in portable electronics
• Battery management systems (BMS)
• Power supplies and DC circuits requiring precise thermal cutoff

With its dependable performance and compact design, the BOURNS 25A Thermal Cut-Off Fuse provides an essential layer of safety for a wide range of electronic and power storage applications.