The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density circular shell designs. The PT series offers solder contacts, while the PT-SE series provides high-performance crimp contacts, and the PT-CE series offers commercial crimp options. These connectors facilitate quick-disconnect bayonet coupling for fast mating and un-mating, and are available in various mounting styles and shell sizes.