5104338-8 is a low-profile pin header connector with 40 positions and 0.100 inch (2.54 mm) pitch spacing, designed for reliable board-to-board interconnection in ribbon cable systems. The header features a black thermoplastic housing rated UL 94V-0, with copper alloy contacts plated with 0.00076 inches (0.00076 mm) gold in the mating area and 0.00381 inches (0.00381 mm) tin on solder posts, with entire contacts underplated with 0.00127 inches (0.00127 mm) nickel for enhanced durability and corrosion resistance. The connector has a length dimension A of 2.300 inches (58.42 mm) and width dimension B of 1.900 inches (48.26 mm), making it suitable for compact PCB layouts. This product is RoHS compliant and commonly used in data acquisition systems, industrial control equipment, and other applications requiring robust multi-position interconnection with standard pitch spacing.