Board-to-Board Mezzanine Connector for Tight Stack Heights
The Hirose DF12B-36DS-0.5V(86) is a 36-position, 2-row receptacle with center strip contacts, part of the DF12 series of board-to-board mezzanine connectors. The receptacle accepts the matching DF12 series plug to achieve mated stacking heights of 3.5 mm, 4 mm, or 5 mm — a range that covers common mezzanine card spacing in portable electronics, handheld instruments, and compact industrial modules.
The 0.50 mm pitch is the tightest routing constraint for the board layout engineer — it drives trace width and spacing on the PCB, and the 2-row arrangement with 36 total positions means a compact footprint roughly 9 mm long. The 2.70 mm height above board, combined with the mating plug, yields the three stack height options (3.5 mm, 4 mm, 5 mm). This lets the designer choose the board-to-board spacing that fits the component height on the mezzanine card.