Mezzanine Stacking at 0.80 mm Pitch
The 0.80 mm pitch is the tightest common mezzanine pitch — it packs 60 circuits into a compact footprint but demands HDI-level board routing and limits per-contact current well below what a 2.54 mm header would carry.
Board Layout: What the 0.80 mm Pitch Means
At 0.80 mm pitch, the breakout traces between pads are narrow. The two-row arrangement with 60 positions sets the connector body length; the 7.85 mm height above board combined with the 8 mm mated stack height defines the card-to-card clearance.