The JK-NSMD012 is an electronic part manufactured by the company Jinrui Electronic Materials. It is a PTC (Positive Temperature Coefficient) Resettable Fuse with 1206 RoHS compliance. It is specifically designed to protect circuits from over-current negligence and surges as it automatically cuts off the current after a certain threshold. It is a low profile component with optimized thermal and electrical performance, and its small total volume ensures a broad range of applications. It is also RoHS compliant, which means that it is made without hazardous materials like lead, mercury, and cadmium, thus making it more environment-friendly and safe to use.