Board-to-Board Mezzanine Fit — DF9B-15S-1V(32)
The Hirose DF9B-15S-1V(32) is a 15-position receptacle from the DF9 series, designed for parallel board stacking. It uses outer shroud contacts on a 0.039" (1.00mm) pitch in two rows, and the mated stack height with the matching header lands at 4.3mm — a dimension you need for the z-height budget before the layout is locked.
Position Count — 15 vs the DF9B Siblings
The DF9B family shares the same 0.039" (1.00mm) pitch, 3.30mm height above board, and tin contact finish across all position counts. The 15-position DF9B-15S-1V(32) sits between the 11-position DF9B-11S-1V(32) and the 25-position DF9B-25S-1V(32); a 31-position DF9B-31S-1V(32) is also available. The footprint class is identical — only the number of pads changes — so swapping to a different position count means a new board layout, not a different connector family.
It is ROHS3 compliant.