Termination is via solder eyelets — a field-service-friendly method that doesn't require a crimp tool, and the free-hanging (in-line) mounting style suits cable-to-cable or cable-to-panel interconnects. RoHS compliant per the listing.
50-Position Density and Termination
At 50 positions in two rows, this plug packs a lot of signal lines into a compact footprint — typical for I/O harnesses in industrial controls, test equipment, or medical devices where every millimeter counts. The solder eyelet termination means each wire is hand-soldered into a cup, giving the assembler direct control over the joint quality. Compare that to an IDC termination like the DX31A-80P(50) in the same DX family: IDC punches through insulation for mass-termination on ribbon cable, faster for production but harder to rework. Here, the solder eyelet is the right choice if you're building a harness with discrete wires and want the option to replace a single contact later.
Sourcing and Status
No official second-source cross-reference exists in the evidence, but the DX series includes other position counts and termination styles (like the DX31A-80P(50) with IDC or the DX40M-26P with solder eyelets at 26 positions) if the BOM allows a position change.