BERGSTIK II Unshrouded Header, 21 Positions
It uses the standard 0.100" (2.54mm) pitch, making it a direct fit for breadboard layouts and ribbon-cable receptacles. Rated 5 A per circuit at 110 V, with 30.0 µ" gold or GXT plating on the mating surface — a plating grade that handles repeated mating cycles without the contact resistance drift you get from thin flash or tin.
The 0.100" (2.54mm) pitch is the key footprint match — it aligns with standard perfboard, prototyping grids, and the matching IDC socket or crimp receptacle. The 21-position count is the BOM line; single row keeps the board footprint narrow. If your application sees frequent board swaps or field service, this plating holds up.