MR series keying plug
The 350591-1 is a polarizing device (key, plug, post) in TE Connectivity's MR (Miniature Rectangular) connector accessory line, designed to prevent mis-mating in multi-connector installations.
TE 350591-1 MR Keying Plug, Polarizing Device, Active
MPN350591-1
Active
TE Connectivity AMP Connectors MR (Miniature Rectangular) polarizing device (key, plug, post), order code 350591-1, bulk package, ROHS3 compliant, for use with MR series connectors.
$1.4300Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMR (Miniature Rectangular)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | MR (Miniature Rectangular) |
| Accessory type | Polarizing Device (Key, Plug, Post) |
| Package | Bulk |
| For use with (Related products) | MR (Miniature Rectangular) Series |