The 0530470410: This is a through-hole vertical header from the PicoBlade 53047 series, 4 positions, single row, on a 1.25 mm pitch. The mating half is the PicoBlade 51021 series receptacle housing. Confirm the wire gauge and terminal part number for the 51021 housing separately — the header itself accepts only the male terminal, which is pre-loaded in the header.
The contact base is phosphor bronze, a standard spring material that holds its force over temperature and repeated deflection. The rectangular male blade shape provides a broad wiping surface during mating, which helps clear debris from the contact zone.
The insulation is polyamide (PA66) rated UL94 V-0. This is the standard flame rating for connectors inside equipment enclosures where the housing must self-extinguish within a specified time. The natural color is typical for unkeyed PicoBlade headers.