The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) are high-density circular connectors featuring a quick-disconnect bayonet coupling mechanism for easy mating and un-mating. They are available with various contact arrangements, including solder contacts in the PT series, high-performance crimp contacts in the PT-SE series, and commercial crimp options in the PT-CE series. These connectors come in multiple mounting styles and shell sizes, suitable for various application needs.