The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density contact configurations within a circular shell. The PT series connectors utilize solder contacts, while the PT-SE series offers high-performance crimp contacts. These circular connectors provide quick-disconnect bayonet coupling for rapid mating and unmating, with various mounting styles and shell sizes available. The specific part number includes a high-performance crimp contact version with shell size 16, designed for reliable electrical connections in demanding applications.