The Molex 5046930400 is a 4-position, single-row receptacle housing from the CP-3.3 504693 series. The housing is natural PBT, free-hanging (in-line), and accepts crimp terminals — contacts are not included, so you order the female socket terminals separately. Typical use is in wire-to-wire or wire-to-board harnesses where a compact, positive-lock connector is needed, such as in appliance, automotive, or industrial control wiring.
This receptacle mates with the corresponding CP-3.3 header (male pin header) of the same 4-circuit count and 3.30 mm pitch. The contacts are inserted into the housing after crimping; the latch holder also acts as a terminal position assurance (TPA) to confirm full seating.
No official cross-reference or pin-compatible alternative is documented in this series, so match the circuit count and pitch to your BOM line before committing.