What this connector does in the assembly
The Molex 5031750300 is a 3-position, right-angle receptacle from the CLIK-Mate 503175 series. It mates with a corresponding CLIK-Mate plug housing (sold separately) to create a wire-to-board connection at a 1.50mm pitch.
At 1.50mm pitch, this 3-position receptacle occupies a narrow board footprint — about 4.5mm across the row. Insulation height of 0.274" (6.95mm) and contact post length of 0.134" (3.40mm) define the z-height above the board — check clearance against adjacent components.