The Hirose DF12NC(3.0)-50DS-0.5V(51) is a 50-position, 2-row receptacle with center strip contacts, part of the DF12 series of board-to-board mezzanine connectors. Its 0.50mm pitch and 3mm mated stacking height suit it for dense parallel board stacking in compact electronics — think handheld devices, camera modules, or embedded compute modules where every millimeter of z-height matters.
Pitch and footprint — what 0.50mm means for your board
At 0.50mm pitch, this receptacle demands a controlled PCB layout — trace widths and spacing between pads are tight enough that a standard 1oz copper layer may need necking down. The 2-row arrangement packs 50 signals into a board edge footprint roughly 12.5mm long, which frees real estate for other components.
Mating and compatibility — what it works with
The center strip contact design aligns the signal beams in a single row per side, which keeps the mated pair stable under vibration. Gold-on-gold contact interface — 8.00µin gold on the receptacle side — gives a low and stable contact resistance over hundreds of cycles. No secondary lock or TPA; the friction of the beam contact holds the pair together. For a 50-position mezzanine link, that's enough retention in a stationary assembly.