Mezzanine stack fit — 0.50 mm pitch, 50 positions, 3 mm gap
The DF12D(3.0)-50DP-0.5V(81): Gold-plated contacts on the outer shroud interface suit repeated mating cycles typical in portable or modular electronics where the board stack is disconnected during service.
What mates and what replaces it
For a pin-compatible alternative within the DF12 family, confirm the mated stacking height (3 mm) and position count (50) match the replacement part's ordering code — the DF12 series includes multiple stack height variants.