Board-to-Board Mezzanine Fit: Pitch, Stack Height, and Footprint
The 76342-311LF: The mated stack height is 11.04 mm, with an insulation height of 0.275" (6.99 mm) — the z-height budget between boards must accommodate the full mated pair, not just the receptacle body.
The mating interface carries 30.0 µinch (0.76 µm) gold over phosphor bronze — this thickness supports several hundred mating cycles in a field-service or test-equipment environment without exposing the base metal. The solder tails are tin-plated (78.7 µinch / 2.00 µm), which is the standard finish for wave-solder compatibility and does not affect the mating interface performance.
