RP-SMA Jack for RG-405 Semi-Rigid Coax — 18 GHz, 50 Ohm
The 18 GHz maximum frequency is the upper end of the SMA specification — this jack will pass signals from DC through the full microwave band without a resonance dip, provided the cable and termination maintain the 50 Ohm impedance. The threaded coupling locks the pair mechanically, so vibration or cable strain won't unseat the interface.
Kit Contents and Cable Compatibility
The 132103RP ships as a 4-piece kit: one RP-SMA jack body, one centre contact (gold-plated brass), and two PTFE insulators. The cable group is explicitly RG-405 (.085" /.086" semi-rigid) — the insulator bores and contact dimensions are cut for that diameter. Using a different cable gauge will shift the impedance and may not seat the centre conductor properly. The contact and shield both terminate by solder, so you'll need a soldering iron rated for the brass body's thermal mass.