The MMCX-P-P-H-ST-SM1: It's part of the MMCX-P series from the base product number MMCX-P, and it's the go-to when you need a quick-connect RF interface on a board that goes through a reflow oven. The snap-on fastening gives you a positive click on mate without a coupling nut — standard for MMCX where board density or tool access is tight.
The Ratings That Drive the Fit
Surface mount termination means the center pin and shield legs reflow onto the PCB pads; the footprint needs a ground plane cutout under the PTFE body to maintain the 50 Ohm launch.
How It Compares to Its Siblings
The closest alternative in the MMCX-P family is the through-hole version, MMCX-P-P-H-ST-TH1. Same 50 Ohm impedance, same 6 GHz ceiling, same snap-on coupling — the only difference is the termination. The through-hole variant gives you a stronger mechanical anchor to the board if vibration or repeated cable flex is a concern. The cable-attach sibling, MMCX-P-C-H-ST-CA1, skips the PCB footprint entirely and terminates to RG-174 or RG-316 coax with a crimp shield and solder center pin — that one is for inline cable assemblies, not board mounts. If you need a female socket on the board, the MMCX-J-P-H-RA-SM1 is a right-angle jack with the same 50 Ohm / 6 GHz spec, but it mates with this plug.