50-position dual-row receptacle on 0.100-inch grid
The 2-215309-5: All 50 positions are loaded, and the through-hole termination uses a kinked-pin solder tail with a post length of 0.122" (3.10mm) — a fit for standard PCB thicknesses in the 1.6mm range.
Gold mating finish for repeated mating cycles
The mating contacts are plated with 31.5 µin (0.80µm) gold over phosphor bronze, while the solder tails receive a 98.4 µin (2.50µm) tin finish — a split finish that preserves corrosion resistance at the interface and solderability at the board. Compared to the tin-mating 1-2823056-2 (12 positions, 0.100" pitch), this part's gold plating supports a higher number of mating cycles and better performance in environments with humidity or mild corrosive exposure.