The BNC7T-P-C-GN-ST-CA3: It's the 75 Ohm variant of the BNC7T series — the impedance and cable group are what set it apart from the 50 Ohm BNC connectors you see on test equipment. Rated to 4 GHz, it covers the full L-band and most of the S-band, so it handles satellite IF, broadband video, and telecom clock distribution without rolling off the signal. Termination is a hybrid: the centre contact gets soldered, the shield braid gets crimped. That's the standard field-termination method for BNC on flexible coax — the solder joint gives a reliable RF connection at the pin, and the crimp barrel takes the mechanical strain off the cable-to-connector joint.
Cable Compatibility: RG-179
This plug is gated for RG-179 coax — a 75 Ohm miniature cable (about 2.5 mm OD) used in video, CCTV, and broadcast where space is tight and the line impedance needs to stay at 75 Ohm. The centre conductor of RG-179 is a solid or stranded 30 AWG equivalent; the solder cup on the BNC7T centre contact is sized for that. If your cable is RG-59 (thicker, 75 Ohm) or RG-174 (50 Ohm, similar diameter), this connector won't fit the cable entry or the impedance won't match — stick with the listed cable group.
Brass body with nickel finish — the nickel gives corrosion resistance for indoor/outdoor equipment racks and lab environments.