Hybrid Battery Mini-Breakers (TCO and PPTC Devices

By Littelfuse Inc 121

Hybrid Battery Mini-Breakers (TCO and PPTC Devices

Littelfuse’s MHP-TAC series metal hybrid PPTC breakers offer higher voltage rating (12 VDC) and smaller size than typical MHP-TAM breakers. MHP-TAC helps to meet the battery safety requirements of higher-capacity lithium-ion polymer (LiP) and prismatic batteries found in most mobile devices such as laptop PCs, tablets, and smartphones. MHP technology connects a bimetal protector in parallel with a PPTC device. The PPTC device acts as a heater and helps keep the bimetal latched until the fault is removed. The resulting MHP-TAC helps to provide resettable OTP.

Features
  • Miniature resettable thermal cut-off (TCO) device
  • High voltage rating
  • Overtemperature and overcurrent protection for LiP and prismatic cells
  • Multiple activation temperature ratings (+72°C, +77°C, +82°C, +85°C, and +90°C)
  • Compact size 4.75 mm x 2.8 mm x 0.8 mm (L x W x H) allows for ultra-thin battery pack designs
Applications
  • Battery cell protection for LiP and prismatic cells used in:
    • Notebook PCs
    • Ultrabooks
    • Tablets
    • Smartphones
    • E-cigarettes
    • Battery-powered portable devices

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