50 Ohm BNC Jack, 4 GHz — Right-Angle Through-Hole for Board-Edge RF
The Hirose BNC-LR-PC(40) is a 50 Ohm BNC jack with a female socket interface, rated to 4 GHz. That 4 GHz ceiling covers most baseband video, RF instrumentation, and telecom clock signals — the connector itself is not the bandwidth bottleneck below that frequency. The right-angle through-hole mount places the signal path perpendicular to the PCB, which saves height in an enclosure but adds a short stub in the launch; for designs up to 4 GHz the impedance discontinuity is manageable with a standard footprint. The center contact is beryllium copper with silver plating — beryllium copper holds its spring force over those 5000 cycles, and silver keeps surface resistance low at RF. Shield termination is solder to the shell, which is the standard method for a clean ground connection at the board edge.