The BNC-LR-PC-3(40): Rated to 4 GHz max frequency, this jack covers standard video (baseband SDI up to 3 GHz), instrumentation, and RF test signals comfortably. It is not a multi-GHz data-rate BNC — the 4 GHz ceiling means it handles up to about 8 Gbps NRZ signalling before the insertion loss and return loss degrade beyond what a 50 Ohm system tolerates. The silver-plated centre contact and nickel-plated brass body give a low-resistance shield path; the solder termination on both centre and shield keeps the ground return solid through the board via field.
Centre contact and shield both terminate with solder — no crimp tool needed, but the solder joint on the centre pin must fill the plated through-hole without wicking up the pin. The nickel-plated brass body is the ground reference; the shield termination is a solder tab, not a press-fit leg, so the board footprint should include a ground plane stitch via under the body to keep the shield continuous. The single-port design means one BNC per footprint — no multi-port ganging on this order code.