The Molex 0469921020 is a 10-position receptacle housing from the Mini-Fit Jr Versa 46992 series, a 4.20mm-pitch wire-to-wire and wire-to-board interconnect family.
Contacts Are Ordered Separately — What You Need
You need the matching Mini-Fit Jr crimp terminal, a female socket that inserts into the 10 cavities. The terminal accepts 18-24 AWG wire and is ordered by its own Molex order code (e.g. 44476-1111 for tin-plated, or 44476-2111 for gold-plated, depending on current and cycle-life requirements). The 2-row, 4.20mm row spacing means the terminal insertion tool nests into the rear of the housing; a secondary TPA (terminal position assurance) retainer is available for the series if the application sees vibration.
This receptacle mates with any Mini-Fit Jr header in the same 4.20mm pitch, 10-circuit, 2-row configuration — for example, the 46992-1020 vertical header or the 46992-2020 right-angle header. No polarising key or centre wall — the housing is symmetrical, so the header's orientation determines the wire exit direction. For a sealed assembly, use the Mini-Fit Jr TPA retainer (sold separately) to lock each terminal in place.