MDM-51PBS-7-A174 is a 51-contact Micro-D PCB plug connector designed for high-density, high-reliability board-to-board, board-to-cable, and cable-to-cable applications. It features a straight board mount (BS) termination with 0.050" (1.27 mm) contact spacing, jackpost mounting hardware (M83513/5-07), and an electroless nickel shell finish (A174). The connector utilizes a Liquid Crystal Polymer (LCP) insulator and offers a standard termination tail length of 0.109" (2.77 mm). With a dielectric withstanding voltage of 600 VAC at sea level, insulation resistance of 5,000 megohms minimum, and durability rated for 500 mating cycles, this connector is suitable for demanding applications in aerospace, military, and industrial electronics.