As a connector housing, it requires separate crimp contacts and a mating header to complete a wire-to-board interconnect — the housing alone does not carry current. The Key C designation means the housing has a specific mechanical keying feature that prevents mismating with receptacles of other key codes, useful in multi-connector harnesses where incorrect mating could cause shorts or miswiring.
It is RoHS Compliant, so it meets current European material restrictions for electronic equipment.
What mates with this plug
The header is sold separately and requires its own part number. For a complete wire-to-board assembly, you also need the matching crimp terminals (sold separately) and the header that mounts to the PCB.
How this compares to 2-1318110-1
The key difference for procurement is packaging: Bag (3-2378159-2) is typical for smaller quantities, while Box (2-1318110-1) may suit higher-volume builds. Confirm the key code and circuit count match your BOM before substituting.