The 1-5111008-0: The 50 circuits fill a full 2x25 layout, so the mating receptacle must also be 50-position, dual-row, 0.100" pitch.
30 µinch Gold Mating Surface — Mating Cycle Life
The mating contact finish is 30.0 µinch (0.76 µm) gold over nickel — a plating grade that supports 500+ mating cycles in typical signal applications.
Keying Slot and 4-Wall Shrouding — Mis-Mate Protection
The header includes a keying slot and a full 4-wall shroud. The keying slot prevents inserting a mismatched receptacle — critical when multiple similar headers share a board.
The connector is RoHS-compliant per TE's standard declaration.
