16-position board-to-board receptacle
The 20021321-00016D4LF is the 16-circuit member of Amphenol ICC (FCI)'s Minitek127® 1.27mm female socket header line, a dual-row surface-mount receptacle for board-to-board stacking.
Pitch, rows, and footprint
The 0.050" (1.27mm) pitch and matching 0.050" (1.27mm) row spacing give a compact dual-row footprint — the 16 positions occupy the same board area as the 10- and 20-position siblings in the Minitek127® series, so the PCB keep-out is shared across the family.