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 models utilize solder contacts, PT-SE models offer high-performance crimp contacts, and PT-CE models provide a commercial crimp option. These circular connectors are designed for quick-disconnect bayonet coupling, allowing rapid mating and unmating, and are available in various mounting styles and shell sizes.