5102159-9 is a 40-position pin header connector designed for System 50 cable-to-board interconnect applications with 0.025" (0.64 mm) centerline ribbon cable pitch. This connector features a 0.110" (2.79 mm) soldertail length and is available with contact plating finish option A, designed to mate with compatible receptacles and strain relief assemblies. The connector is RoHS compliant and supports both terminated and unterminated configurations, with dimensions of 1.186" (30.12 mm) length and 0.950" (24.13 mm) width for PCB layout compatibility. Commonly used in computer peripherals, data acquisition systems, and industrial control applications where reliable multi-position signal distribution is required.