The 112538 is a straight PCB mount BNC jack connector designed for printed circuit board integration in RF and coaxial cable applications. It features a 50 ohm characteristic impedance suitable for frequencies up to 4 GHz, with a nickel-plated brass shell and Teflon insulation for reliable signal transmission. The connector utilizes a bayonet lock mechanism for secure mating and is compatible with standard BNC plug connectors. This PCB-mounted jack is commonly used in test equipment, instrumentation, broadcast systems, and RF signal distribution networks where direct board-level connectivity is required.