The RF30-050F PTC polymer fuse is a 500mA resettable solid state, quick acting, self-recovery, polymeric PTC current limiting fuse manufactured by AUPO. It offers overcurrent and over temperature shutoff protection for a wide range of electronic parts and devices. It is designed to fit into a 30mm diameter PCB hole, has a compact size, and is easy to implement. The RF30-050F PTC polymer fuse is RoHS compliant, has an operating temperature range of -40°C to 85°C, and has a maximum current of 500mA. It is a reliable solution for protecting device from short-circuits and overloads while offering thermal protection.