120-Position Mezzanine Plug at 0.80mm Pitch
The TE Connectivity 5179031-5 is a 120-position plug from the Free Height (FH) series, designed for mezzanine board-to-board stacking. At a 0.80mm pitch, it packs high signal density into a compact footprint — typical for routing dense digital buses between parallel PCBs in servers, switches, or telecom line cards.
Stack Height Flexibility
This plug supports mated stacking heights of 8mm, 12mm, 16mm, and 20mm — the same board footprint works across four board-spacing options, so a single layout can serve multiple enclosure heights. The 7.60mm height above board leaves room for component keep-outs on the underside of the mating board.