The 901-10512-2: That frequency ceiling puts it solidly into Ku-band microwave work — test equipment, instrumentation, and RF front ends where the signal needs a clean launch off the board edge. The threaded coupling gives a vibration-resistant mate that won't back off under thermal cycling or mechanical shock, and the 500 mating cycles mean this jack holds up to repeated connect-disconnect in a test rack or field-swap scenario without the centre contact fretting open.
This SMA jack mounts either at the board edge as an end-launch or right-angle through hole. The end-launch orientation keeps the signal path short and the impedance transition clean — critical when you're pushing 26.5 GHz and every millimetre of stub adds a ripple. No press-fit, no crimp — just solder and go.
The wide span also covers the temperature rise from high-power RF — the connector body and dielectric are specced for the full envelope, not just room-temperature bench work.