The 31-71045 is a BNC series connector configured as a 75 Ohm bulkhead jack for printed circuit board applications. It features a right-angle body style for space-efficient board layouts and a bulkhead design for secure panel installation. This jack connector maintains a characteristic impedance of 75 Ohms, which is critical for signal integrity. It is commonly used in equipment where a secure, panel-mounted PCB connection is required, such as in telecommunications, broadcast video, and instrumentation.