0.40mm Pitch Mezzanine Plug — 30 Positions, Shielded
The Hirose DF40GB-30DP-0.4V(58) is a 30-position plug from the DF40 series, built for board-to-board mezzanine stacking at tight pitches. The 0.016" (0.40mm) pitch and dual-row layout pack 30 circuits into a compact footprint — expect HDI board routing and micro-via escape patterns. Gold-plated outer shroud contacts handle repeated mating without fretting, and the shielded construction with solder retention tabs keeps the signal path clean and the joint anchored through reflow and vibration. The connector is surface-mount only — no through-hole option — so it feeds directly into a standard SMT line with Tape & Reel or Cut Tape packaging. The 1.14mm height above board keeps the profile low, while the mated stacking heights of 1.5mm and 3mm give two z-height options from the same plug, depending on the receptacle chosen.
Mated Stacking Heights and Mating Half
The outer shroud contacts on the plug engage with the receptacle's inner contacts, and the shielding shell mates to contain EMI.
The DF40GB-30DP-0.4V(58) sits at 30 positions within a family that also offers 48 and 70 positions at the same 0.40mm pitch and 1.14mm board height. The 30-position variant is a common mid-range choice for applications needing moderate I/O density — the 48-position (DF40GB-48DP-0.4V(58)) and 70-position (DF40GB-70DP-0.4V(58)) options serve higher-channel-count designs without changing the board footprint pitch or z-height budget.