Temperature indicators give improved prevention of overheating damage to USB Type-C connectors

10-06-2019 | Littelfuse | Subs & Systems

Littelfuse offers an expanded PolySwitch setP series of digital temperature indicators, created to protect USB Type‑C and USB power delivery charging cables from dangerous overheating. The latest addition to the product family, the SETP0805-100-CC, is optimised for use in cables equipped with USB Type-C connectors at both ends.


Typical applications for the temperature indicators incorporate consumer electronics, mainly for mobile and wearable devices furnished with USB Type-C cables (with a Type-C plug on each end); and USB Type-C chargers (such as cables fixed or captive to a charger “brick” for laptops).


The compact 0805 (mils) footprint of setP temperature indicators claim to make them at least 50% smaller than other solutions that need placing a device on the power line. The devices can be employed to protect cables designed for 100W of power or more.






“Market experts estimate the number of consumer electronics, wireless, and computing devices equipped with USB Type-C connectors sold each year will reach 5 billion by 2021, spurring demand for solutions that can protect cables and connectors from overheating damage,” said Stephen Li, global product manager at Littelfuse. “Like the original setP, this new addition to the series offers the smallest, most energy-efficient solution available on the market, making it simpler than ever to protect people and electronics against overheating.”

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