This standard numbering plug from TE’s Circular Plastic Connectors Series 1 can be used with the Feed-Through Receptacle part number 206552-1. The plug features housing made from 94V-0 rated black thermoplastic and the contacts housed within the plug are crafted from copper alloy and are gold over nickel plated. This plug and the entire Series 1 of Circular Plastic Connectors, like all parts from TE, are RoHS compliant.