5102321-4 is a 20-position pin header connector designed for ribbon cable interconnect solutions from TE Connectivity. It features a 0.185 inch (4.69 mm) soldertail length and is configured with contact plating finish type A, making it compatible with receptacles and strain relief applications. The connector has a 0.100 inch (2.54 mm) pitch spacing and is designed for manual PCB insertion with recommended hole layout specifications including 0.040 ± 0.003 inch diameter holes. This product is RoHS compliant and is commonly used in computer peripherals, data acquisition systems, and general-purpose interconnect applications where reliable ribbon cable connections are required.