Terminal Position Lock and Housing Features
The housing includes a Terminal Position Lock (TPA) feature, a secondary lock that slides over the fully inserted crimp terminals to confirm they are seated and prevent back-out during mating or vibration.
The free-hanging mount means the receptacle is used as the wire-side half of the connection, typically terminated to a harness and mated to a board-mounted header. The white colour aids visual identification in multi-harness assemblies.
13 vs 12 Circuits — Position Count Difference
The 5051511301 carries 13 positions, while the 5051511201 carries 12 positions at the same 2.00 mm pitch and single-row layout. The one-position difference means the 13-circuit housing is physically longer by one pitch increment (2.00 mm) and requires a 13-position header as its mating half. If the BOM calls for 12 circuits, the 5051511201 is the correct choice; the 13-position housing will not mate with a 12-position header.