Mezzanine Plug for Tight Board Spacing
It carries center strip contacts in a 2-row arrangement on a 0.031" (0.80 mm) pitch — the fine pitch packs high I/O density into a small footprint, which means the PCB layout needs to match that tight pad spacing exactly. The plug mates with the matching Free Height receptacle at one of four mated stacking heights: 8 mm, 12 mm, 16 mm, or 20 mm, giving a single connector design flexibility across different z-height budgets in the same enclosure.
What the 0.80 mm Pitch and 140 Positions Mean for Your Board
At 0.80 mm pitch with 140 circuits, this is a dense interconnect. The fine pitch drives routing density on the PCB — trace escape from the SMD pads requires careful fan-out, typically with vias-in-pad or microvias for the inner rows. The board guide is a practical feature here: it aligns the plug during mating so the fine-pitch contacts don't stub against the receptacle.
Surface mount termination — the plug reflows onto the board with no through-holes, which saves board real estate on the opposite side. The board guide also helps during pick-and-place by giving the vision system a clear alignment target. The plug ships in a Tube, so plan for tube-to-tape conversion if your line feeds from a reel.