40-Position D-Type Board-to-Board Plug — Not Your Cable-Mount D-Sub
The TE Connectivity 1747053-1 is a 40-position D-Type plug that mates board-to-board, not to a cable-mounted receptacle. That distinction matters: the shell flange carries M2.6 hardware for panel or bracket mounting, and the through-hole solder tails fix the connector to the PCB in a vertical orientation. It's a signal-density interconnect — 3A per contact with gold-plated brass pins — sized for internal board-to-board links where you need a D-sub footprint without the cable harness.
0.100 Inch Pitch — Standard Footprint, Metric Hardware
The contact layout uses a 0.100 inch pitch with the same 0.100 inch row-to-row spacing — the classic D-sub footprint that's been on PCB layouts for decades. What catches people: the flange is tapped for M2.6 screws, not the usual 4-40 UNC. If your panel or bracket is threaded for 4-40, you'll need an adapter or a helicoil insert.
Gold Contacts for Repeated Mating, Not Just One Install
The contacts are gold-plated brass — a signal-grade finish that handles more mating cycles than a tin-plated contact. If this plug is going into a board-to-board link that gets disconnected during test, calibration, or field service, the gold plating resists the fretting corrosion that would kill a tin contact after a few cycles.
Active Production — No LTB Pressure on This BOM Line
That means no last-time-buy clock ticking on this part number — you can spec it into a design without worrying about an imminent EOL notice.