Dual-plating contact construction
The 430451028: The contact interface uses 15.0µin (0.38µm) gold on the mating face — protecting the contact zone against fretting and repeated engagement cycles — while the solder-tail is thick 100.0µin (2.54µm) tin for solderability and long-term anti-oxidation. The contact body is brass, and the square pin geometry suits the corresponding receptacle contact.
Current and voltage ratings
Rated 8 A per circuit at the mating interface and 600 V — a combination that covers most low-to-medium power wire-to-board applications in the listed verticals. The per-circuit rating is the governing limit; the total connector current depends on the wire gauge and circuit count in the harness assembly. The 4-wall shroud on all four sides of the header body provides mechanical keying and protects the contacts from side-impact during handling and mating.