0.50mm Pitch Board-to-Board Receptacle — Now Obsolete
The Hirose DF12-50DS-0.5V(86) is a 50-position receptacle with center strip contacts, part of the DF12 series of fine-pitch board-to-board connectors. The 0.020" (0.50mm) pitch and 2-row layout pack 50 circuits into a narrow footprint, with gold-plated contacts (8.00µin) on both mating surfaces.
The 50 positions in 2 rows give 25 contacts per row, which sets the connector body width at roughly 6.5mm. The mated stack height options (3.5mm, 4mm, 5mm) are set by the matching DF12 series header, not by this receptacle alone — so the BOM must pair this receptacle with a header that delivers the target z-height.