D-Sub Receptacle for Panel or Board I/O — TE 5745185-7
It carries a shell layout size 2 (DA, A), with a black glass-filled nylon housing rated UL94 V-0 and a tin-plated steel shell for basic EMI shielding. This is the vertical through-hole version — mates with any standard DA-15 D-Sub plug, typically used for serial, parallel, or general-purpose I/O in industrial controllers, test equipment, and enclosure backplanes.
Gold Flash Contacts — What That Means for Reliability
The 5745185-7 carries gold flash (minimum 0.05 µm) over the phosphor bronze base on the mating surface. Gold flash does not buy the same cycle life as a thicker 15-30 µ" gold plate — it prevents oxidation during storage and first-mate, but repeated insertions will wear through to the nickel underplate. For a connector that sees occasional field service (say, 25-50 mate cycles over its life), gold flash is adequate. The solder tail side is tin, which wets well with standard rosin-core solder.