Board-to-board fit and locking
The 104894-1 is the 10-position dual-row member of TE's AMPMODU 50/50 Grid header line, with a 1.27 mm pitch on both rows. It mounts surface-mount right-angle and includes a board lock and solder retention feature to hold the part during reflow and resist shear from the mating cable.
Selection notes for the 1.27 mm pitch
The 0.5 A per-contact rating and gold mating finish suit signal-level board-to-board interconnects where repeated mating cycles and corrosion resistance matter.