1.5mm mated stack height — the z-height constraint for this mezzanine plug
The Hirose DF23C-10DP-0.5V(92) is a 10-position plug from the DF23 series, designed for board-to-board mezzanine stacking. The plug itself sits 0.047" (1.20mm) above the board surface, so the receptacle side accounts for the remaining 0.3mm in the stack.
Gold contacts and SMT termination — signal duty in a thin package
Surface-mount termination keeps the assembly compatible with reflow soldering, and the outer shroud contact design provides mechanical alignment during mating — the shroud guides the receptacle into position before the signal pins engage. The 0.50mm pitch is tight enough that trace breakout on the PCB needs careful routing; a 2-row pattern helps keep the escape lanes manageable.