What This Connector Is — and Why the Float Matters
The Molex 2043650006 is a 6mm SMT socket from the Coeur Sentrality 204365 series, built as a female receptacle (socket) terminal. The standout feature here is the float — the socket body is designed with mechanical compliance to absorb board-to-board or board-to-cable misalignment during automated assembly. That means on a pick-and-place line, the socket can shift slightly as the mating header engages, reducing shear stress on the solder joints. Without that float, a rigid SMT socket with even 0.2 mm of offset can crack the solder fillet after reflow or under thermal cycling. This is a part you specify when the alignment tolerance stack-up between two PCBs or between a PCB and a cable assembly is tighter than your placement machine can hold.
Termination and Assembly Fit
Termination is SMT solder, so this socket runs through a standard reflow oven — no press-fit tooling, no hand-soldering. The package is tray, which is typical for automated placement: the parts are held in a rigid carrier that feeds into the pick head without tape-and-reel tape peel issues. The 6 mm height is the overall envelope dimension, meaning the mated stack height will be that 6 mm plus the header's own height — check the mating header's profile to confirm total z-height clears your enclosure.