The TE Connectivity 5787686-1 is a 37-position AMPLIMITE HD-20 D-sub plug with male pins, arranged in two rows. This is the full-density DC shell size layout, the standard 37-pin footprint for serial, parallel, and instrumentation interfaces. Gold-plated phosphor bronze contacts handle signal-level duty at 6 A per circuit, with a 125 V voltage rating that covers most control and data bus applications.
Board lock and grounding indents — what they do in the assembly
Two features set this plug apart from a plain D-sub. The board lock — a pair of plastic or metal posts that snap into the PCB — holds the connector upright during wave solder, preventing tilt and ensuring the pins stay aligned with the plated through-holes.
Mating half and flange hardware
The flange carries female screwlocks (4-40 thread) on the mating side, so you need a receptacle with male screwlocks or a separate jack-screw kit to secure the pair. The screwlocks prevent the mated pair from vibrating loose in field-service applications.