The TE Connectivity 5787170-4 is a 40-position D-sub receptacle from the AMPLIMITE.050 III series, designed for board-edge mounting with a right-angle solder termination. It carries gold-plated contacts rated 1 A per circuit at 30 V — a signal-density interconnect for applications where the 0.050-inch pitch keeps the footprint compact. The shielded shell with nickel-plated steel construction and integral board locks gives this connector a place in EMI-sensitive equipment where mechanical retention and grounding are needed at the board edge.
Board Lock and Shield — What They Mean for Assembly
For a board layout engineer, the 0.146-inch backset spacing sets the distance from the board edge to the mounting flange — check this against your enclosure clearance before committing the footprint.
No official cross-reference or pin-compatible equivalent is listed; the 40-position count and 0.050-inch pitch define the footprint, so confirm the mating half and BOM position count before specifying.