0.40mm-Pitch Mezzanine Receptacle, 24 Positions
The Hirose DF37NC-24DS-0.4V(51) is a 24-position receptacle from the DF37 series, built for board-to-board stacking at a tight 0.016" (0.40mm) pitch. It carries center strip contacts arranged in 2 rows, with a surface-mount termination that keeps the profile low — 0.038" (0.97mm) above the board. The mated stacking height lands at 0.98mm, which sets the gap between parallel PCBs in a mezzanine or sandwich-style assembly. Gold contact finish at 2.00µin (0.051µm) covers the mating interface, adequate for moderate cycle counts in a controlled environment.
24 vs 30 Positions at the Same Pitch
The DF37NC-24DS-0.4V(51) shares the same 0.016" (0.40mm) pitch, 0.038" (0.97mm) height, and 2.00µin gold finish as the 30-position DF37NC-30DS-0.4V(51). Pick the 24-position variant when the BOM calls for exactly 24 signal lines; the 30-position sibling is the next step up in the same footprint class.