The Amphenol PT series and PT-SE series connectors (MIL-DTL-26482 Series I) feature high-density circular shell designs. The PT series connectors come with solder contacts, while PT-SE models offer high-performance crimp contacts, and PT-CE variants provide commercial crimp options. These connectors utilize a quick-disconnect bayonet coupling mechanism for rapid mating and un-mating, and are available in various mounting styles and shell sizes.