The HST AR3 13.0/4.0 (00) is a miniature circular connector manufactured by Amphenol. It is designed for use in harsh industrial environments and is suitable for a variety of applications. It features a bayonet-style coupling and is made of nickel plated copper alloy with a polyamide insulator. This connector is rated to IP68 and has a 13 mm connector diameter and 4 mm mating length. The HST AR3 13.0/4.0 is suitable for data, power, and signal transmission, and is capable of carrying up to 1000V, 25A, and 3A currents. This connector is commonly used for applications in machine building, industrial automation, and instrumentation.