The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density contact arrangements within a circular shell. The PT series provides solder contacts, while the PT-SE series offers high-performance crimp contacts. These connectors are designed for quick-disconnect bayonet coupling, allowing for rapid mating and unmating. They come in various mounting styles and shell sizes to suit different applications. The PT-CE series provides a commercial crimp option, enhancing versatility.