The JK-MSMD010 with PTC Resettable Fuses 1812 RoHS is an environmentally-friendly, self-resetting device manufactured by Jinrui Electronic Materials. It is a type of PTC (positive temperature coefficient) fuses designed to help protect electronic circuits. The JK-MSMD010 features a RoHS (Restriction of Hazardous Substances) compliant construction for compatibility with stringent environmental regulations. This product has an operating voltage of 18V-12V, a surge current of 2.2A, a max. Voltage of 250VAC, a nominal current rating of 1A, and an I2t value of 0.2A2sec. It is designed to offer superior protection from over-current, over-voltage, and short-circuits, as well as provide over-temperature protection. The JK-MSMD010 is an ideal choice for power supplies and electronic device applications.