It carries gold-plated brass signal contacts rated 6A per circuit at 125V, with a steel shell finished in tin. This is the plug half of a standard DE-9 (E shell size) D-Sub pair — the one that goes on the cable or board edge, mating with a 9-position receptacle with 4-40 screwlocks. Typical use is RS-232 serial ports, industrial control interfaces, and instrumentation where a field-serviceable, screw-locked connection is needed.
Why the Board Locks and Grounding Indents Matter on This Part
Without them, the shear force from inserting or removing the mating receptacle can crack solder joints over repeated cycles. On a right-angle plug, the board locks also resist the lever action of a cable pulling sideways against the connector.
The female screwlocks are on the receptacle side.