The 1-5102159-0 is a low-profile pin header designed for ribbon cable interconnection applications with 50 positions and 0.100 inch [2.54 mm] centerline spacing. It features a 0.110 inch [2.79 mm] soldertail length and is available with contact finish plating code A, making it suitable for direct soldering to PCBs. This header is compatible with receptacles without strain relief and mates with corresponding ribbon cable connectors in the System 50 family. The product is RoHS compliant and commonly used in computer peripherals, data acquisition systems, and industrial control applications where reliable multi-position interconnection is required.