Thermal protection targets LiP batteries

The MHP-TA series of ultra-low-profile (5.8 x 3.75 x 1.15-mm) resettable thermal cut-off (TCO) devices target lithium battery protection. The devices feature a 9−Vdc rating, two product categories with different levels of current-carrying capacity, and multiple cut-off temperature ratings.

The thermal protection devices connect a bimetal protector in parallel with a polymeric positive temperature coefficient (PPTC) device. The series offers nine devices with two levels of current carrying capacity: low-current MHP-TA6-9 products with an approximately 6−A hold current at 25°C, and high-current MHP-TA15-9 products providing a hold current of approximately 15 A. The low-current devices are available in four different ratings of 72°, 77°, 82°, and 85°C and the high-current devices in five ratings of 72°, 77°, 82°, 85°, and 90°C. They help provide resettable overtemperature protection, while using the PPTC to act as a heater and to keep the bimetal latched until the fault is removed. (Contact company for price and availability.)

By Paul O’Shea

TE Connectivity , Harrisburg , PA , United States
Product Information Center 800-522-6752
www.te.com