The 318528-1 part is an electrical connector manufactured by TE Connectivity. It is a rectangular rocker switch, also known as a surface-mount switch in the general connector marketplace. It features gold-plated contacts and pressure-activated latching operation. It is rated for 4A/125VAC, 4A/250VAC, 4A/30VDC, and 2A/50VAC. It has a mechanical life of 200K cycles, is RoHS compliant, and is designed for medium-density applications. It is ideal for use in computers, audio equipment, home appliances, and industrial machinery.