The JK30-600 with PTC Resettable Fuses Through Hole RoHS is a component manufactured by Jinrui Electronic Materials. It is used to protect circuits in the event of a short circuit or power surge. The fuse is mounted directly onto a PCB through an included hole, and it is designed to trip and reset itself as required, allowing the circuit to continue to operate even after the surge has occurred. It features a maximum voltage of 600 V AC/DC and a maximum current rating of 6A. The component has RoHS certification, meaning it is free from hazardous materials, while its compact design offers an efficient solution to your circuit protection needs.