The Amphenol RF 3FA1-NMSJ-C04W0 is an SMB/Fakra jack (female socket) in a free-hanging, in-line body — no PCB footprint to worry about. It's a crimp-termination connector built for RG-58 and its variants (58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907), so if you're terminating a standard 50-ohm coax run this is the right shell. The latch-lock fastening means it snaps onto a mating Fakra plug and holds without a threaded coupling ring — quicker to mate in a harness assembly, but you trade the vibration-proof torque of a threaded interface.
The 50 Ohm impedance and 3 GHz maximum frequency tell you this is a signal-path connector for RF up through low microwave bands — think cellular, GPS, or telematics antenna feeds, not base-station backhaul above 3 GHz. The 100 mating cycles are typical for a Fakra latch-lock design; if your application needs frequent disconnect/reconnect in the field, that's enough for several years of service but not for daily plug/unplug cycles. The Code M feature designation is a Fakra keying code — it ensures the jack only mates with a Code M plug, preventing cross-mating with other Fakra colour codes in a multi-connector harness. The orange/pastel housing colour matches the Code M standard, so you can visually verify the keying before you snap it together.
Crimp Termination — No Soldering Required
That means you need a crimp tool with the correct die for the RG-58 cable OD and the centre pin size — no soldering iron, no heat shrink. For a field install, that's faster and more repeatable than solder, provided you have the right tool. The cable group includes RG-58 and LMR-195, which have slightly different dielectric diameters; verify your cable's centre conductor and jacket OD against the crimp barrel dimensions in the manufacturer's installation instruction before you commit the crimp.