Amphenol 12S-3P Circular Connector

Amphenol 12S-3P circular connector, part of the Amphenol Industrial Operations 97 Series, is a rugged three‑position MIL‑SPEC circular connector designed for harsh environments in aerospace, defense, and industrial equipment. The shell is aluminum alloy finished with olive drab chromate, providing corrosion resistance and durability in demanding harness applications. The 12S insert houses three electrical contacts in a compact circular footprint, enabling a compact, reliable interconnect where space is at a premium. This connector is typically offered in standard 12S, 3P configurations within Amphenol’s 97 Series catalog, representing a family of mating interfaces and orientations that support robust field service and long‑life performance. Common applications include avionics harnesses, ground support equipment, rugged industrial machinery, and military vehicle systems where a durable, field‑reliable circular connection is required. Representative part numbers in this family include 97-3101A-12S-3P and 97-3102A-12S-3P, illustrating the available variants for different mating configurations while preserving the same size 12S, 3‑position insert.