Sealed 4.00 mm header for harness-to-board links
The 1-776276-2: This is a TE Connectivity AMPSEAL header, 8 positions in 3 rows at 4.00 mm pitch — the footprint you need for a sealed board-to-cable/wire connection in an automotive or industrial enclosure.
ROHS3 compliant, bulk packaged, and the base product number 776276 cross-references the family for mating plug and terminal selection.
Mating and termination fit
Mates with the AMPSEAL 8-position plug (e.g., 776276-1 or similar) — the locking ramp and sealed interface are specific to that series; a standard unsealed header won't latch or seal.