The 1-5102156-0 is a 50-position vertical pin header designed for ribbon cable interconnection solutions from TE Connectivity. It features a solder tail length of 0.185 inches (4.79 mm) and is configured with dual polarization for secure mating with compatible receptacles. The header is manufactured with contact finish plating code A (gold flash over palladium-nickel plate with tin plate on solderails) and is RoHS compliant. This connector is commonly used in ribbon cable assemblies for data transmission applications, including Ultra ATA bus systems and general-purpose interconnect solutions where reliable, polarized connections are required.