770156-5 is a 5.0 mm Power Key Connector (5.0 PKC) wire-to-board socket assembly designed for power circuits in home appliances, particularly gas appliances. This connector features a compact design with a 19.4 mm mated height and is rated for 16 AWG (0.2 mm²) wire size with a blue color code and pre-tin brass finish. The connector incorporates a double lock plate for complete contact loading, locking levers surrounded by protective walls to prevent wire tangling, and bubble-release design for potted applications. It is recognized by Underwriters Laboratories Inc. (File No. E28476) and certified by Canadian Standards Association (File No. LR7189), making it suitable for demanding power distribution applications requiring reliable electrical connections and mechanical durability.