SMA Receptacle, Right-Angle Through-Hole — 50 Ohm, 12.4 GHz
The 1053378-1: The gold-plated stainless steel body gives it corrosion resistance and a clean ground path, while the PTFE dielectric keeps the signal stable across the band.
The centre contact terminates by solder cup, and the shield is soldered to the board ground plane through the through-hole legs.
The 12.4 GHz ceiling covers L-band, S-band, C-band, and most of X-band; if your signal sits above that, you need a higher-frequency SMA variant.