The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) are high-density circular connectors designed with a quick-disconnect bayonet coupling. The PT series offers solder contacts, while the PT-SE series features high-performance crimp contacts, and the PT-CE series provides a commercial crimp option. These connectors are available in various mounting styles and shell sizes, suitable for a range of applications.