The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density contacts within a circular shell. The PT series provides solder contact options, while the PT-SE series offers high-performance crimp contacts, and the PT-CE series includes a commercial crimp option. These connectors utilize a quick-disconnect bayonet coupling mechanism for easy connection and disconnection. They are available in various mounting styles and shell sizes, suitable for a range of applications.