0.50mm Pitch Mezzanine Header, 40 Positions, 5mm Stack
The Hirose DF12NC(5.0)-40DP-0.5V(51) is a 40-position header from the DF12 series, designed for board-to-board mezzanine stacking. It uses a 0.020" (0.50mm) pitch and two rows of outer shroud contacts, with a mated stacking height of 5mm — a common z-height for compact parallel PCB assemblies in portable electronics, camera modules, and handheld instruments.
40 vs 30 vs 60 Positions — Same Footprint, Different I/O
The DF12 series offers this header in 30, 40, 50, and 60 positions at the same 0.50mm pitch and 5mm stacking height. The 40-position DF12NC(5.0)-40DP-0.5V(51) sits between the 30-position DF12NC(5.0)-30DP-0.5V(51) and the 60-position DF12NC(5.0)-60DP-0.5V(51).