Question regarding Connector
To me, a plug has male contacts (pins).
In the specification table for that connector, the &quot;Backend type&quot; line indicates that &quot;40M&quot; is the manufacturer's code for that style of PCB-mounting connector.
Somewhere in the catalog there may be a description of how the connector part number is created - what all the bits of the number mean.
I don't understand what you mean by &quot;contact connector&quot; - that's not a term I have ever seen.