The TE Connectivity 619127-1 is a non-gendered coaxial compression stacker — a 50 Ohm RF interconnect that mates with an identical second unit, not a traditional plug-and-jack pair. It is a single-port surface-mount device rated to 6 GHz with an insertion loss of 0.2 dB. Shield termination is solder; the centre contact terminates via compression, so no solder iron touches the signal pin during assembly.
No official successor part number is on record. If you are specifying a new design, the non-gendered stacker form factor is unusual enough that a direct parametric substitute is unlikely; a full RFQ review with the application requirements is the practical next step.
The 25 mating cycles rating is low — this is not a connector meant for repeated disconnect/reconnect in the field. It is a board-to-board compression joint that gets mated once or a few times during assembly and test. The gold-over-brass plating on both body and centre contact gives it the corrosion resistance for that single-install life, but the cycle count tells you the contact beam is not designed for frequent reconnection. For a production line that needs to test and rework, plan for one or two mate cycles per unit.
Surface-mount compression termination means the board footprint must accommodate the compression tooling — this is not a reflow-only part.