In summary, Souriau-Sunbank by Eaton 38999 circular connectors were originally conceived to ensure reliable electrical connections in aircraft, but their lightweight compact size and general characteristics have contributed to successful adoption in numerous civil and military aviation applications and also in the fields of professional and general electronics. Souriau-Sunbank by Eaton offers an extensive range of Mil-qualified connectors with solder, crimp, PC-tail and wire wrap termination. These connectors feature a variety of plating options. RoHS compatible versions are also available. Souriau-Sunbank by Eaton's circular connectors have been widely used in harsh environments such as geophysical exploration, oil and gas production, commercial and military electronics, instrumentation and measurement systems, etc.