Mini BNC Plug for 75 Ohm Video and Telecom Links
The TE Connectivity 1274566-2 is a mini BNC plug, male pin, built for 75 Ohm systems. It ships as a kit with the connector, an end cap, and a ferrule — three pieces, one order code. The 75 Ohm impedance and 2 GHz frequency ceiling place it squarely in the broadcast video, CCTV, and telecom infrastructure world, not the 50 Ohm RF test bench.
The centre contact is solder-terminated; the shield is crimped. That split — solder pin, crimp braid — is standard for mini BNCs on flexible coax: the solder joint gives a repeatable impedance through the pin, and the crimp barrel grabs the braid for low DC resistance and pull-off strength. The listed cable group is AT&T 734A, a 75 Ohm series coax. The gold-plated centre contact and nickel-plated brass body resist corrosion in outdoor or high-humidity installs.
Electrical and Environmental Limits
Rated 300 V and 2 GHz maximum frequency. The bayonet lock (not a threaded coupling) means the mate is quick but the retention torque is lower than an N or SMA — fine for patch panels and camera drops, not for high-vibration engine compartments.