Amphenol SeroSpace 97-3108A-20 Circular Plug

Amphenol SeroSpace 97-3108A-20 Circular Plug is a shell-size-20 plug in Amphenol’s 97 Series circular connectors, designed for cable assemblies in aerospace and related industries. It mates with a corresponding receptacle from the same 97-3108A-20 family and is offered in multiple insert configurations to fit different harness requirements, including variants such as 97-3108A-20-19S, 97-3108A-20-27P, and 97-3108A-20-29S. These options share the same external shell size and mating envelope while delivering different contact counts and layouts to support a range of signal and power needs. Exact pin count and contact arrangement depend on the sub-variant, so the specific suffix must be verified to ensure compatibility with the intended mating part and termination scheme. The 97 Series is widely used in aerospace applications, including aircraft avionics harnesses and space-system cabling, where robust mechanical fit and reliable electrical performance are required in demanding environments. When selecting this plug, confirm the exact insert configuration and corresponding mating counterpart to ensure the part meets your design’s contact count, pitch, and interface requirements.