1318123-2 is a vertical board-mounting header connector designed for the D-2100S single-row standard type Dynamic Series connector system. It features a 3-position configuration with 2.5mm pin pitch spacing and gold plating for reliable electrical contact and corrosion resistance. The connector has external dimensions of 10.2 mm (A), 9.5 mm (B), and 17.8 mm (C), making it compact for space-constrained applications. This vertical-type header is commonly used in industrial control systems, instrumentation panels, and modular electronic assemblies where reliable board-to-board or board-to-housing connections are required. The gold-plated contacts ensure long-term durability and consistent performance in demanding environments.