60-Position Mezzanine Header for Tight Stack Heights
The Hirose DF12NB(4.0)-60DP-0.5V(51) is a 60-position header from the DF12 series, designed for board-to-board mezzanine stacking. The mated stacking height is 4mm, set by the 0.130" (3.30mm) height above board of this header plus its matching receptacle.
Pitch and Footprint — Routing the 0.50mm Grid
At 0.50mm pitch, the trace escape from the SMT pads is the first layout constraint. Two rows of 60 positions mean 30 contacts per row, and the 0.50mm centre-to-centre spacing requires either via-in-pad or a tight fan-out on the inner layers.
