643235-1 is a 6-circuit socket header connector designed for the 5.0 mm Power Key Connector (5.0 PKC) wire-to-board system manufactured by TE Connectivity/AMP. This connector features a 1.550 inch (39.37 mm) dimension A spacing with a pre-tin contact finish and UL94V-2 flammability rating, providing reliable power circuit connections for home appliances, particularly gas appliances. The connector is designed with a compact 19.4 mm mated height and incorporates protective features including locking levers surrounded by walls to prevent tangling with wires, double lock plates for complete contact loading, and bubble-release design for potted applications. The socket header mates with corresponding plug housing assemblies and is recognized under UL Component Program File No. E28476 and CSA File No. LR7189, making it suitable for demanding applications requiring certified electrical connections in appliance manufacturing.