The TE Connectivity 1-640512-0 is a 12-position receptacle housing from the MR (Miniature Rectangular) series, built on a 4.20 mm pitch in a 3-row layout. It is a wire-to-board or wire-to-wire interconnect housing that accepts male pin contacts terminated to 20-24 AWG wire via crimp. Typical use is inside industrial control cabinets, automotive interior harnesses, and appliance power distribution where a compact, vibration-resistant connection is required.
A common BOM mistake is ordering just the housing and wondering why the harness won't mate.
Pitch, Positions, and Panel Fit
The snap-in panel mount requires a rectangular cutout in the panel — no screws or brackets.
Mates with TE MR series pin headers — the male pins in the header engage the female contacts you crimp into this housing. The crimp termination uses standard MR series pin contacts (TE part numbers in the 640512 family).