Littelfuse over-temperature protection device handles higher currents in a small package

January 22, 2018 Jamie Leland

Littelfuse, Inc. has introduced the MHP-TAT18 Metal Hybrid PPTC Battery Mini-Breaker with resettable Thermal Cut-Off (TCO), an over-temperature protection device with a 9VDC rating. The device is designed to help meet the battery safety requirements of the higher-capacity lithium ion polymer and prismatic battery cells found in portable, battery-powered consumer products, such as gaming PCs, notebook PCs, and tablets. It connects a bimetal protector in parallel with a Polymeric Positive Temperature Coefficient (PPTC) device, which acts as a heater and helps keep the bimetal latched until the fault is removed.

The MHP-TAT-18 Metal Hybrid PPTC Mini-Breaker Series with resettable TCO offers multiple activation temperature ratings (72°C, 77°C, 82°C, 85°C, 90°C) and comes in a thin, compact form factor (5.8mm x 3.80mm x 1.05mm).

“Compared to similar protection devices on the market, MHP-TAT18 Metal Hybrid PPTC Mini-Breakers with thermal cut-off can handle higher currents in a smaller, thinner form factor,” said Amy Chu, product manager, Electronics Business Unit at Littelfuse. “Their welding leads can also be customized to facilitate a customer’s design process.”

For more information, visit the MHP-TAT Metal Hybrid PPTC Battery Mini-Breaker Series product page.

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