The JK-SMD0603-030-6 with 0603 Resettable Fuses ROHS is a type of electronic part that is manufactured by Jinrui Electronic Materials. The part comes with 0603 form factor and is ROHS compliant, making it suitable for use in a wide range of applications. The part is a resettable fuse, which means it can be used to protect electrical circuits, components, and systems from overcurrent or overvoltage event, as well as it can self reset after the situation has been corrected. The parts are rated for 30V at 6A, and come in surface mounted design, making them a great choice for compact design applications.