48 positions, 3 rows, 2.50 mm pitch — board-fit check
The 1827538-1: This is a 48-position, 3-row header on 2.50 mm pitch with 3.75 mm row spacing — a dense but through-hole-friendly grid for industrial control or power distribution boards.
The mating interface carries 15.0 µin gold over copper alloy, which handles repeated mating cycles without oxidation — a solid choice for field-serviceable connections where the header sees multiple insertions over its life.
Shrouded 4-wall with detent lock — mating and retention
The detent lock gives a positive click when the mating connector seats — you should hear it latch; if it doesn't click, it's not fully mated.
RoHS compliant per current directive.