770051-1 is a rear cap housing component designed for 6-circuit 5.0 mm Power Key Connectors (5.0 PKC) wire-to-board assemblies manufactured by TE Connectivity/AMP. This connector system features a compact design with 19.4 mm mated height and 5.0 mm contact centerline spacing, specifically engineered for power circuits in home appliances, particularly gas appliances. The housing incorporates protective design elements including locking levers surrounded by walls to prevent tangling with wires, and is designed to release bubbles created during potting processes. The connector meets UL94V-2 flammability rating and is recognized under Underwriters Laboratories Component Program (File No. E28476) and certified by Canadian Standards Association (File No. LR7189). This rear cap component is part of a comprehensive connector kit system and is commonly used in applications requiring reliable power distribution and secure wire-to-board connections.