What this 10-circuit SlimStack receptacle is
The Molex 5035481022 is the 10-position member of the SlimStack 503548 series — a fine-pitch board-to-board receptacle with center strip contacts. Typical use: mezzanine interconnects in handheld devices, portable electronics, or any assembly where board real estate and vertical clearance are both constrained.
The receptacle itself sits 0.68 mm above the board (the height above board spec), so the total stack includes the mating plug's own height on the opposite board. Solder retention features and a pick-and-place pad simplify automated assembly on the SMT line.