043339

The TE Connectivity 043339 is a yellow coding key, a backplane connector accessory used for keying and identification in connector systems. Designed for use with backplane connectors, this accessory helps ensure correct mating orientation and prevents mismating errors during assembly. The yellow color provides visual differentiation for easy identification in dense connector layouts. It is specified as RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited), indicating no moisture sensitivity. As a coding key, it is a passive component that does not carry electrical signals but is essential for connector assembly and maintenance. This product is part of TE Connectivity's backplane connector accessory family, suitable for use in telecommunications, data networking, and industrial equipment where reliable connector keying is required.