Board-to-Board Mezzanine Receptacle, 0.40 mm Pitch
The Hirose DF37NB-24DS-0.4V(51) is a 24-position receptacle from the DF37 series of fine-pitch board-to-board mezzanine connectors. It uses a 0.016" (0.40mm) pitch in a 2-row layout, with center strip contacts that mate to the corresponding DF37 header. Gold-plated contacts (2.00µin) serve moderate mating cycles in a compact footprint. The mated stacking height is 0.98mm, and the height above board is 0.038" (0.97mm) — among the thinnest profiles in the series.
Termination is surface-mount only; the solder retention features anchor the part during reflow. No separate board lock is required.