DF30 Series — 40-Position Mezzanine Receptacle
The HIROSE DF30FC-40DS-0.4V(81) is a 40-position receptacle from the DF30 series, using outer shroud contacts on a 0.016" (0.40mm) pitch. It is a surface-mount, dual-row connector designed for board-to-board mezzanine stacking, with a mated stacking height of 0.9mm and a height above board of 0.035" (0.88mm).
0.40mm Pitch and Stacking Height — Fit for Tight Z-Height Budgets
The 0.035" (0.88mm) height above board and 0.9mm mated stacking height together define the z-axis clearance needed between parallel boards — a 0.9mm gap is typical for ultra-thin devices like smartphones, wearables, and compact camera modules where every tenth of a millimeter counts.
Gold Flash Plating — What the 2.00µin Finish Means
The 2.00µin (0.051µm) gold contact finish is a flash plating.
Comparing the (81) and (82) Suffix Variants
The DF30FC-40DS-0.4V(81) and DF30FC-40DS-0.4V(82) share identical electrical and mechanical specs — same 40 positions, 0.40mm pitch, 0.88mm height, gold flash plating, and active lifecycle. For a pick-and-place line running reels, either works; the (82) offers more flexibility for small-quantity prototyping through the Digi-Reel service.