1761681-9 is a 26-position vertical header assembly connector designed for PCB mounting applications. It features a PCT housing rated UL94V-0 in black color with phosphor bronze posts that have gold plating (0.00038 mm min) on the mating area, tin plating (0.00254 mm min) on the solder end, and nickel underplating (0.00127 mm min) on the entire post. The connector has a 2.54 mm (0.100 inch) pitch spacing and overall dimensions of approximately 38.10 mm (1.500 inch) in length (dimension B) and 40.64 mm (1.600 inch) in dimension A. This header assembly is suitable for general-purpose electronic interconnect applications requiring reliable vertical board-to-board or wire-to-board connections.