643237-1 is a right-angle PCB header connector designed for 8-circuit 5.0 mm Power Key Connector (5.0 PKC) wire-to-board systems. This connector features a compact design with a mated height of 19.4 mm and is specifically engineered for power circuit applications in home appliances, particularly gas appliances. The header has a pre-tin contact finish and dimensions of 2.050 inches (52.07 mm) for dimension A, 2.745 inches (69.72 mm) for dimension B, and 2.330 inches (59.18 mm) for dimension C. 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 features for potted applications. It is recognized under UL Component Program File No. E28476 and certified by Canadian Standards Association File No. LR7189, making it suitable for demanding power distribution and control applications requiring reliable electrical connections.