75 Ohm HD BNC for Sealed RF Paths
The 031-70564-12G: The HD (high-density) body is smaller than a standard BNC, letting you pack more ports per panel inch while keeping the bayonet-lock mating and 75 Ohm impedance that broadcast and video systems require. This one ships as a 3-piece kit — the connector, a lockwasher, and a nut — so the bulkhead hardware is already in the bag. Rated to 12 GHz with a 75 Ohm characteristic impedance, this jack covers analog video baseband through HD-SDI and into higher-rate serial digital signals. The PTFE dielectric and gold-plated beryllium copper center contact keep the signal path stable across that band. The brass body carries a tin finish — tin over brass is standard for cost-effective RF bodies; the corrosion protection comes from the IP67 seal, not the plating.
IP67 Sealing and Wide-Temperature Duty
The IP67 rating — dust-tight and waterproof to 1 meter immersion — is unusual for a BNC and tells you this connector was specced for outdoor, washdown, or condensation-prone enclosures. The bulkhead mount with front-side nut compresses an O-ring (integral to the design) against the panel face; the seal holds when mated with a matching IP67 BNC plug.
Mating Cycles and Field Service
The bayonet lock gives a positive tactile click on full mate — no torque wrench, no thread counting.