The NR85CB0 is a C-type miniature thermal cutoff (TCO) breaker designed for overtemperature and overcurrent protection. It features a fixed trip temperature of 85 °C ± 5°C and a minimum reset temperature of 40 °C. Key electrical characteristics include a maximum resistance of 15 milliohms and a maximum leakage current of 150 mA at 25 °C. The device is rated for contact endurance of 6000 cycles at DC 12V/12A. It is primarily used for battery cell protection in applications like notebook PCs, tablet PCs, and smart phones.