213853-1 is a circular plastic connector plug from the AMP CPC Series 1 family, specifically configured as a 23-19 arrangement with 4-key keying style B to prevent mismatching of standard and reverse sex connectors. The connector features a thermoplastic housing rated UL 94V-0 with black color, operating over a temperature range of -40°C to +105°C. It accepts Type III+ high-current power, Type II, and subminiature coax contacts, offering quick connect/disconnect capability with thread-assist positive detent coupling and built-in pin and socket protection. The plug is RoHS compliant and polarized for proper mating, making it suitable for commercial signal and power applications requiring reliable, secure connections in diverse environmental conditions.