The TE Connectivity 5747150-4 is a 9-position D-Sub receptacle from the AMPLIMITE HD-20 series, arranged in 2 rows in the standard DE-9 shell layout. The steel shell with tin plating provides EMI shielding and mechanical ruggedness for serial data interfaces, industrial control links, and instrumentation cabling where a reliable DE-9 footprint is called for.
The housing/shell flange is unthreaded, so it accepts a standard DE-9 hood with screwlocks for cable retention — no panel-mount flange. Termination is through-hole solder; the pins drop into a standard 0.108-inch (2.74 mm) pitch PCB footprint. The 2-row arrangement matches the familiar DB-9 pinout used for RS-232, RS-422, and similar serial protocols.