The press-fit shield and contact termination means no solder iron on the board: the centre pin and outer braid both press into plated through-holes, which keeps assembly clean and rework straightforward.
The 50 Ohm impedance matches 50 Ohm RF test, broadcast video, and telecom systems.
Zinc body with nickel finish, PTFE dielectric, beryllium copper centre contact with gold plating — the material stack is standard for a reliable 50 Ohm BNC. The press-fit shield termination grounds the braid through the board without a solder pot, and the centre contact press-fits into its own plated hole. The through-hole mounting keeps the jack anchored against the torque of bayonet mating and unmating.