5102154-4 is a 20-position pin header connector designed for System 50 ribbon cable-to-board interconnection applications. It features a 0.050" (1.27 mm) cable pitch and is configured as a 2-row pin header grid that mates with 0.050" x 0.100" ribbon cable connectors. The connector has a soldertail length of 0.110" (2.79 mm) and utilizes contact finish plating code B. This connector is RoHS compliant and is commonly used in data acquisition systems, industrial control equipment, and legacy computing applications where reliable ribbon cable connections are required. The standardized pitch and configuration ensure compatibility with System 50 interconnect solutions.