The Amphenol PT series and PT-SE series connectors, conforming to MIL-DTL-26482 Series I standards, feature high-density contact arrangements within a circular shell. The PT series options include solder contacts, while the PT-SE offers high-performance crimp contacts, and the PT-CE provides a commercial crimp option. These circular connectors are designed for quick-disconnect bayonet coupling for fast mating and un-mating, and they come in various mounting styles and shell sizes.