The 1-1827581-2: It is ROHS3 compliant.
Mates with Dynamic D-1500 series socket housings (crimp or IDC receptacles) that accept the matching tab contacts. The detent lock provides audible feedback on full mate — a half-turn loose is a dropout, so listen for the click. Termination is solder to through-hole posts (0.120" length). The 3-row layout with 3.30mm row spacing gives the board layout engineer room to route traces between rows without necking down the copper.
