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 offers solder contacts, while the PT-SE series provides high-performance crimp contact options. These connectors are designed for quick-disconnect bayonet coupling, allowing for rapid mating and unmating, and are available in various mounting styles and shell sizes. They are suitable for applications requiring reliable and high-density connections.