The 6274084-1: It carries a 75 Ohm impedance rating, which distinguishes it from the more common 50 Ohm BNC — this part is built for the impedance-matched signal path in video distribution, broadcast, and CCTV systems, not for general-purpose RF. The bayonet lock provides a quick quarter-turn mate with any standard BNC plug, and the nickel-plated zinc body gives it a corrosion-resistant shell suited for equipment racks and lab environments.
Mounting and PCB Fit — Bulkhead with Right-Angle Tails
That right-angle orientation is the key layout constraint: the board edge must align with the panel cutout so the tails reach their pads without bending.
Frequency and Voltage Headroom
Rated to 2 GHz maximum frequency and 500 V, this jack has headroom above typical video baseband (which runs DC to a few hundred MHz). The 500 V rating is high for a BNC — it suits applications where the coax carries bias voltage or where isolation from power circuits is needed.
Sourcing — Active Part, Quoted to Order
No direct cross-reference or official substitute is listed, so match the BOM line to this exact order code.