Electrical and environmental limits
The 2-647125-5: Rated 600VAC, the header suits general-purpose and industrial equipment inside an enclosure. Current is not a fixed number here — it depends on the wire gauge in the mating receptacle, so size the wire to the load.
Through-hole solder termination: the post length of 0.125" (3.18mm) is short, so the PCB hole depth must be controlled to avoid bottoming out.
