0.50mm Pitch Mezzanine Header, 36 Positions, 4mm Stack
The Hirose DF12NB(4.0)-36DP-0.5V(51) is a 36-position header with outer shroud contacts from the DF12 series, designed for board-to-board mezzanine stacking at a 4mm mated height. The 0.020" (0.50mm) pitch and dual-row layout pack 36 circuits into a compact footprint, making it a fit for dense PCB assemblies where routing space is tight.
36 Positions vs 30 and 50 — Position Count Drives the BOM Match
The DF12NB(4.0)-36DP-0.5V(51) carries 36 positions, sitting between the 30-position DF12NB(4.0)-30DP-0.5V(51) and the 50-position DF12NB(4.0)-50DP-0.5V(51) in the same DF12N sub-series. All three share the 0.020" (0.50mm) pitch, 0.130" (3.30mm) height above board, 4mm mated stack height, and gold plating at 8.00µin (0.203µm). The only selection variable is the circuit count — match the position count to the signal lines on your BOM. The 36-position variant fills a mid-density slot where 30 is too few and 50 is overkill.