The DF12A-30DS-0.5V(81): This is a 30-position, 0.50mm pitch receptacle — the narrow pitch means the PCB footprint is dense, and the 2-row layout keeps the connector compact. The 0.50mm pitch is standard for the DF12 series, so any replacement candidate must match that pitch exactly to avoid a board respin.
Mated stacking heights and board spacing
The DF12A-30DS-0.5V(81) supports three mated stacking heights: 3.5mm, 4mm, and 5mm. That range gives the board designer flexibility in z-axis clearance — a 3.5mm stack for tight enclosures, 5mm for more component clearance on the underside.
Contact finish and termination
Gold-plated contacts with 8.00µin thickness. That's a moderate gold flash — adequate for the mating cycle life of a typical board-to-board interconnect in a production assembly, but not designed for repeated field disconnect. The surface mount termination and board guide feature simplify pick-and-place alignment.