0.50 mm Pitch Mezzanine Header, 50 Positions, 5 mm Stack Height
The Hirose DF12(5.0)-50DP-0.5V(86) is a 50-position header from the DF12 series, designed for board-to-board mezzanine stacking at a 5 mm mated stack height. Gold-plated contacts with 8.00µin finish on the mating surface provide a corrosion-resistant interface for moderate-cycle applications.
4.30 mm Height and 5 mm Stack — Z-Budget Fit
The 4.30 mm height above board, combined with the 5 mm mated stacking height, sets the mezzanine gap between the two PCBs. For a board layout engineer, this means the bottom-side component height on the mating board must stay within the remaining clearance — typically under 0.70 mm — to avoid interference.
Obsolete — Sourcing Through Surplus and Broker Channels
The DF12(5.0)-50DP-0.5V(86) carries an official Obsolete lifecycle status. Standard factory and distributor stock has been exhausted; procurement for this order code now relies on surplus inventory and independent broker channels.
The 8.00µin gold finish on the contacts is a light flash plating. For applications requiring frequent board separation and reconnection — field-service swaps or test points — the thin gold layer will wear through faster than a heavier 15 or 30 µinch plating, increasing the risk of tin fretting corrosion on the base metal.