The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density circular shell configurations. The PT series offers solder contacts, while the PT-SE series provides high-performance crimp contacts, and the PT-CE series includes a commercial crimp option. These connectors are designed with quick-disconnect bayonet coupling for easy mating and unmating, and they come in various mounting styles and shell sizes.