Panel-Mount Plug Housing for MR Series
The TE Connectivity 1-640521-0 is a 9-position plug housing from the MR (Miniature Rectangular) series, designed as a panel-mount, snap-in connector for wire-to-panel or wire-to-wire applications. It carries a 0.165" (4.20mm) pitch across three rows, with a locking ramp fastening type that provides positive retention against vibration in industrial or automotive harness assemblies.
Contacts Are Ordered Separately
A critical sourcing detail: this housing does not include contacts. The note 'Contacts Not Included' means you must order the matching female socket crimp terminals separately for the MR series. The contact termination is crimp-style, so you'll also need the correct crimp tool for the wire gauge you're terminating. Always confirm the terminal part number for your wire size before committing the BOM line.
Mounting and Mating
This plug housing snaps into a panel cutout — no mounting hardware required. The housing is available in black or red; colour may help with keying in multi-connector assemblies, but the electrical function is identical.