Housing for a 6-Circuit Harness — What You're Looking At
The Molex 2122092061 is a 6-position, dual-row receptacle housing from the CP-3.3 212209 series. It's the half that stays on the wire harness, accepting female socket crimp terminals (sold separately) and locking into the matching male header with the integrated latch holder. The 3.30 mm pitch and row spacing give it a compact but serviceable footprint — you can route 20-22 AWG wire without fighting the next cavity over. This is a free-hanging (in-line) housing, so it's meant for wire-to-board connections where the receptacle floats on the harness and mates to a board-mounted header.
What You Need to Order Alongside It
The listing note says it plainly: contacts are not included. This housing ships empty — you need to buy the matching female crimp terminals separately and install them with the correct tooling. The CP-3.3 series uses a standard crimp socket; check the terminal part number for your wire gauge before you commit the BOM line. The latch holder on the housing gives a positive lock with the header, so the terminals stay seated under vibration once the harness is assembled.
Why the 3.30 mm Pitch Matters for Your Layout
The 3.30 mm pitch and identical row spacing mean the header footprint on the PCB is a 2x3 grid on a 3.30 mm square matrix. That's a bit wider than the common 2.54 mm pitch headers, which gives you more room for trace routing between pads and better creepage for the voltage rating. For a 6-circuit power or signal interconnect, the spacing is generous enough that you don't need tight clearance rules on the board.