Littelfuse’s expanded PolySwitch setP series digital temperature indicators are designed to protect USB Type‑C and USB power delivery charging cables from overheating. The latest addition to the product family, the SETP0805-100-CC, is optimized for use in cables equipped with USB Type-C connectors at both ends. Typical applications for SETP0805-100-CC temperature indicators include consumer electronics, primarily for mobile and wearable devices equipped 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.
When the temperature reaches the setP’s indicating temperature (100°C), the setP switches from low resistance to very high resistance, shutting down the flow of power. Once the user disconnects the cable and removes the debris, the cable can resume normal operation.
Both the original (single-end) setP series digital temperature indicator (part number SETP0805-100-SE) and the latest version (part number SETP0805-100-CC) are available as surface mount devices in tape and reel packaging in packs of 4,000 with a minimum order quantity of 20,000 pieces. For more information, procure and peruse the setP series digital temperature indicator datasheet. And while you’re at it, take a look at the video demo.