What this Power Key 2-position housing is
The TE Connectivity 3-1376388-4 is a 2-position plug housing from the Power Key series, designed as the in-line half of a wire-to-board or wire-to-wire power interconnect. The yellow glass-filled PA66 housing carries a latch lock that clicks into the mating header for vibration-resistant retention — useful in automotive and industrial environments where the connection sees mechanical shock.
Contacts are ordered separately — here's what you need
This housing ships without contacts — the note on the line is explicit. You need to source the matching Power Key female crimp terminals separately. The crimp termination accepts the wire gauge range specified for the series; the terminal is inserted into the housing cavity and retained by the latch lock once fully seated. Order the housing and terminals as separate BOM lines to avoid a partial shipment.