350742-4 is a 9-circuit matrix-style pin header connector designed for wire-to-board applications in the MATE-N-LOK II family of power connectors. It features a 0.800 inch (20.32 mm) dimensional spacing (A dimension) and is manufactured with duplex finish plating, which includes 0.000030 inch minimum gold in the mating area and matte tin on the solder tail end over 0.000050 inch minimum nickel underplate. The connector is rated UL94V-0 for flammability and is compatible with standard tail configurations for 0.062 inch thick PCBs or long tail configurations for 0.125 inch thick PCBs. This connector is commonly used in power circuits for home appliances, particularly gas appliances, where reliable mating and secure contact insertion are essential.