The MF300K06F3 is a part manufactured by Yangjie, a Chinese electronic components manufacturer. It is a planar handle switch, which is an electrical switch that can be manually operated by applying force, such as pressing a handle. The switch is rated at 1A at 250VAC, and has a body size of 15x11x14 mm. It has a silver plated, black oxide coated copper alloy contact, and a shielding, self-cleaning mechanism for dust prevention. The MF300K06F3 switch is designed for use in a wide range of applications, including electrical and electronic equipment, power tools, and medical appliance.