Board Footprint and Current Budget
The 77313-818-16LF: The 3 A per-contact rating is the ceiling at room temperature; in a dense harness with all circuits loaded, the aggregate current through the connector body stays under the temperature rise limit of the UL94 V-0 thermoplastic housing.
Mating Surface and Cycle Life
The mating contact finish is gold or GXT™, 15.0 µinch (0.38 µm) thick over phosphor bronze. The post (solder tail) is tin-plated at 78.7 µinch (2.00 µm), which wets well during wave solder.
