350789-3 is a 3-circuit pin header connector from the 5.0 mm Power Key Connector (5.0 PKC) series, designed for wire-to-board power circuit applications. This in-line style connector features duplex plating with a minimum of 0.000030 inch (0.000762 mm) gold in the mating area and matte tin on the solder tail end over a minimum 0.000050 inch (0.00127 mm) nickel underplate. The header has a standard tail configuration suitable for 0.062 inch (1.57 mm) thick PC boards, with a dimension A of 0.800 inch (20.32 mm). It is rated UL94V-0 for flammability and features a compact design with 19.4 mm mated height and 5.0 mm contact centerline. Common applications include power circuits in home appliances, particularly gas appliances, where reliable power connections are required.