75 Ohm HD-BNC Bulkhead Receptacle for Video and Broadcast
Why the 75 Ohm Impedance Matters
This connector is 75 Ohm, not the 50 Ohm common in RF test and telecom. That impedance is the standard for video — SDI, HD-SDI, and composite video runs — and for cable TV distribution. Using a 50 Ohm BNC in a 75 Ohm path creates a mismatch that reflects signal and degrades the picture. The 034-1028 is the correct interface for any 75 Ohm coax like RG-59, RG-6, or Belden 1855A, though the specific cable group is not listed for this part — the solder termination on the center contact and shield means you terminate the cable directly to the connector body.
Mounting and Termination — What Ships in the Box
The package includes two pieces: the connector body and the bulkhead nut. The center contact and shield are both solder-terminated, so you need a soldering iron and the right cable prep. No crimp tool required. The through-hole mounting style also has solder posts on the rear for PCB attachment if you are landing it on a board rather than a cable.
The 034-1140-12G is the 12 GHz-rated sibling in the same HD-BNC series, also 75 Ohm, but with a nickel/gold body finish and a bagged package. The 034-1028 tops out at 4 GHz, which is enough for HD-SDI (3 Gbps) and most broadcast video. If your signal path runs beyond 4 GHz — 12G-SDI or higher-rate serial video — the 034-1140-12G is the correct choice. For standard-definition and HD video up to 3 Gbps, the 034-1028 covers the job without paying for the extra bandwidth.