The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density contact arrangements within a circular shell. These connectors include solder contacts, with the PT-SE series offering high-performance crimp contacts, and the PT-CE series providing a commercial crimp option. They utilize a quick-disconnect bayonet coupling for fast mating and un-mating, and are available in various mounting styles and shell sizes.