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

The BOURNS Thermal Cut Off Fuse is a precision, miniature safety device designed to provide critical protection for sensitive electronic components. Rated for 25A at 28V DC, it operates as a thermal cutoff (TCO), reacting virtually instantaneously to control abnormal or excessive current surges within its specified limits. This rapid response makes it an essential safeguard against potential damage caused by overcurrent events.

Engineered specifically for overtemperature and overcurrent protection, this fuse is ideally suited for securing modern battery technologies, including lithium polymer and prismatic cells. Its reliable operation helps prevent thermal runaway and other hazardous conditions in battery packs and power circuits. The device features an automatic reset function, reactivating when the temperature drops to a minimum of 40°C, ensuring continuous protection without the need for manual replacement after a fault event.

With an ultra-slim body thickness of just 0.94mm and SMD (Surface Mount Device) terminals, it is perfectly designed for compact, high-density PCB layouts commonly found in consumer electronics, power tools, and portable devices. Its SC series designation indicates a specific form factor and performance profile within the manufacturer's range. By integrating this thermal cut off fuse, designers can enhance the safety and reliability of their products, protecting both the circuitry and the end-user from the risks associated with electrical faults.