SMA Bulkhead Jack for 3.3mm Coax
It terminates to 3.3mm coaxial cable with a crimp shield and solder centre contact, and the bulkhead front-side nut mounting secures it flush to a panel face.
Frequency and Impedance — 20 GHz at 50 Ohm
The 20 GHz upper frequency limit puts this jack into the full SMA band — it will pass Ku-band and most K-band signals without rolling off. The 50 Ohm impedance is standard for nearly all RF system chains, so it matches directly to 50 Ohm line components, cables, and instruments.
Cable Termination and Shield
This jack is designed for 3.3mm coaxial cable — a common diameter for RG-type cables like RG174 or RG316. The shield is crimped, the centre conductor soldered. Crimp termination is faster and more repeatable than solder-braid methods for production runs, and the gold centre contact plating maintains low contact resistance through repeated mates. The threaded fastening (SMA standard) gives a positive mechanical lock against vibration loosening.
Bulkhead mounting with a front-side nut means the jack installs from the outside of the panel — the threaded body passes through the cutout and a nut tightens from the rear. This keeps the connector flange flush on the front face, which is typical for front-panel test ports or antenna bulkheads where a clean exterior is needed. The gold-plated brass body resists corrosion in humid or salt-spray environments, and the single-port design keeps the footprint compact.
Comparing to Sibling SMA Jacks
Against the 901-10735 (SMA plug, female socket, solder shield), the 901-10736 is a jack rather than a plug — a panel-mount fixed port versus a cable-end plug. The 901-10745 is a higher-frequency sibling at 26.5 GHz but uses RG-405 (.085" semi-rigid) cable and solder shield termination, so it is not a cable-group swap. The 901-10743 is a nickel-body IP67-rated jack for RG-316 double-braid cable at 6 GHz. For a standard 3.3mm coax run at 20 GHz, the 901-10736 is the direct fit.