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 PT-SE provides high-performance crimp contacts, along with PT-CE options for commercial crimp connections. These circular connectors utilize a quick-disconnect bayonet coupling mechanism for efficient mating and unmating, and are available in various mounting styles and shell sizes.