The 103911-2 is a single-row vertical shrouded header connector designed for high-density board-to-board interconnection on .050 x .100 inch (1.27 x 2.54 mm) centerlines. This 20-position connector features a glass-filled thermoplastic housing rated 94V-0 with integrated solder clips for reliable PCB mounting. The contacts are copper alloy with duplex plating: .000030 inch (0.00076 mm) gold in the mating area, .000150 inch (0.00381 mm) tin on solder posts, and .000050 inch (0.00127 mm) nickel underplating throughout. The connector measures .544 inches (13.82 mm) in length (Dimension A) and provides robust electrical and mechanical performance for applications requiring compact, high-reliability interconnection in telecommunications, computing, and industrial equipment.