The 0878320824: The mating surface carries 15.0 µinch (0.38 µm) gold over the phosphor bronze contact — this is the standard Milli-Grid plating grade for signal-level circuits that see repeated mating cycles.
This header mates with the Milli-Grid 87832 series crimp receptacle housings — the 8-circuit female housing accepts the matching crimp terminal.
Peer comparison: 8 positions vs 4, 6, and 22 in the same series
Within the Milli-Grid 87832 SMT header family, the 8-position variant (0878320824) sits between the 4-position (0878320420) and 6-position (0878320620) on the low end and the 22-position (0878322220) on the high end. The 22-position variant adds a board guide and keying slot — features absent on the 8-position. For a BOM that needs fewer than 8 circuits, the 4- or 6-position options drop in on the same footprint pattern.