The 5-103911-5 is a double row, right-angle board-mounted receptacle connector designed for the AMPMODU Interconnection System. This 40-position connector features a 0.050 x 0.100 inch (1.27 x 2.54 mm) centerline spacing and a dimension A of 1.044 inches (26.52 mm). The housing is constructed from glass-filled thermoplastic rated 94V-0 in black, while the contacts are made of copper alloy with duplex plating: 0.000030 inch (0.00076 mm) gold in the mating area and 0.000150 inch (0.00381 mm) tin on solder posts, with an entire contact underplated with 0.000050 inch (0.00127 mm) nickel. The connector includes solder clips positioned at post tips for secure board mounting. This receptacle is ideal for applications requiring reliable interconnection in compact board-to-board configurations, offering robust performance in industrial and commercial electronic systems.