What This 2-Position Power Header Is For
The TE Connectivity Elcon Mini 2042274-6 is a 2-position male blade header designed for board-level power distribution.
Gold Plating Depth and What It Buys You
It gives you high mating-cycle durability and corrosion resistance in humid or mildly corrosive atmospheres, which is why this connector shows up in battery management and auxiliary power interconnects where the connection sees repeated engage/disengage.
Board Lock: Not Just a Gimmick
On a 2-position power header carrying stiff 10-12 AWG wire, that lock prevents the through-hole solder joints from cracking under vibration or cable tug.