The TE Connectivity 5120528-2 is an 84-position receptacle from the Free Height (FH) series, designed to the IEEE 1386 / PMC mezzanine standard. The 0.039" (1.00mm) pitch drives the board footprint — every signal pair needs a via between shroud walls, so route density is tight.
This receptacle supports three mated stacking heights: 8mm, 9mm, and 10mm. The 0.211" (5.35mm) height above board is fixed — the stack height is set by the mating header. For a 9mm stack, the header sits 3.65mm above its own board.
Tin on the solder tail keeps the SMT joint cost down where the wipe is one-time. The outer shroud contacts shield the beam from side-loading during blind mate, which extends contact life in card-cage insertion.