The 1052565-1: The 18 GHz frequency ceiling places it in the upper SMA band, covering L through Ku band applications including satellite downlinks and microwave backhaul. The 335 V voltage rating is the dielectric breakdown limit through the PTFE insulator; in practice the signal voltage stays well below that in RF circuits. 500 mating cycles is a solid durability figure for an SMA connector that sees field service or test-bench reconnection.
Mounting and Termination Details for the Build
This is a panel-mount receptacle with a flange, secured by the threaded coupling nut on the mating SMA plug. The shield terminates via solder tabs to the chassis or ground plane — a clean solder joint here is critical for keeping the shield path low-inductance at 18 GHz. The centre contact terminates through a solder tab as well, intended for a semi-rigid or flexible coaxial cable centre conductor.
Anyone building a new design should look at current-production SMA receptacles from TE's RF portfolio; the 1052565-1 is a legacy part best reserved for repair or last-time-buy fills.