8-position, 2.50 mm pitch, shrouded header with board lock
The 1-1827875-4 is an 8-position, 2-row vertical header from TE's Dynamic D-1200 series, on a 2.50 mm pitch with a 3.30 mm row spacing.
Peer comparison: 10-position sibling
The closest functional sibling is the 1-1827875-5, which shares the same 2.50 mm pitch, 2-row layout, gold plating, board lock, and 5 A rating — the only difference is 10 positions vs 8. If your BOM calls for 10 circuits, the -5 is a drop-in footprint match.
