SMA Jack, 50 Ohm, 18 GHz — Panel-Mount with Solder Cup
The 901-1PA200000AE: The flange-mounted body bolts to a panel, and the centre contact terminates via a solder cup — you hand-solder the coax centre conductor, then the shield to the shell. The threaded coupling nut locks the mate, holding the interface stable under vibration.
The 18 GHz max frequency and 50 Ohm impedance define the connector class: it passes DC-to-microwave signals without a standing-wave penalty, provided the cable and system impedance match. The PTFE dielectric keeps the dielectric loss low through the band. The 500 mating cycles are supported by the gold-over-beryllium copper centre contact — the gold resists oxidation through repeated reconnects, and the beryllium copper spring maintains contact force over the cycle life. If you are mating this jack in a test set-up that sees daily connects, the cycle count is adequate; for a permanent install it is more than enough.
Panel Mount with Solder Cup — Termination and Installation
This is a panel-mount jack with a flange — you bolt it to the chassis, then terminate the coax cable to the solder cup. There is no PCB footprint; the signal path runs from the cable centre conductor through the solder cup to the beryllium copper contact. The threaded fastening type means the mating plug screws on; the coupling nut should be torqued to the manufacturer's spec (typically hand-tight plus a quarter turn with a wrench) to seat the interface without overstressing the dielectric.
Functional Peer: 901-1GA200000AE
The closest functional alternative is the 901-1GA200000AE. Both are SMA jacks, 50 Ohm, 18 GHz, panel-mount with flange, solder cup termination, 500 mating cycles. The difference is the body finish: the 901-1PA200000AE has a stainless steel body; the 901-1GA200000AE has a gold-plated body. Electrically they are identical — the choice comes down to the enclosure's cosmetic requirement or the corrosion resistance needed in the environment. If the BOM calls for the gold body, the 901-1GA200000AE is the drop-in swap; if the spec says stainless, this is the one.