The 0039293046: This is a 4-circuit, dual-row header from the Mini-Fit Jr 5566 series — a workhorse for board-to-cable/wire interconnects in general-purpose, industrial, and telecom gear. This matters in a panel or enclosure where the cable gets tugged or the equipment sees fan vibration. For a connector that's mated a few hundred times over its life — typical in a power supply or control board — tin is the right call.
It's ROHS3 compliant, so it passes the material restriction check for EU and most global BOMs.
The insulation is natural-colour PA66 (Nylon 6/6) rated UL94 V-2 — it self-extinguishes within the flammability standard for most indoor equipment enclosures.