The 10056844-120ALF: The post (solder tail) is tin-plated at 78.7 µinch (2.00 µm), which is standard for solder joint compatibility.
Through-Hole Termination and Board Integration
The Keying Slot and Pick and Place features indicate it is designed for automated assembly — the pick-and-place pad allows vacuum pickup, and the keying slot prevents mis-mating in multi-connector layouts.
