What this 0.35 mm pitch mezzanine receptacle does
The 0.014" (0.35 mm) pitch and two-row layout pack 60 circuits into a compact footprint — the tight pitch means the board designer must route traces between pads with care, but the reward is a dense interconnect that saves real estate on both PCBs.
Where the 1 mm stack height fits
With a mated stack height of 1 mm and a board-side height of 0.031" (0.80 mm), this receptacle is sized for ultra-low-profile mezzanine gaps — think stacked PCBs in handheld devices, compact modules, or any assembly where the z-height budget is under 2 mm.