The Amphenol FCI D25P91C4GV00LF is a 25-position D-Sub plug (male pin) from the Delta D series, a standard-density layout (shell size 3, DB, B). It is designed for board-to-cable signal interconnects where press-fit termination is preferred over soldering — common in backplane assemblies, industrial controllers, and telecom equipment where rework and thermal stress on the PCB are concerns. The black PBT housing carries UL94 V-0 flame rating, and the steel shell with tin-nickel plating provides basic EMI shielding.
Key Features and Termination
This makes the connector suited for high-reliability environments where solder rework is undesirable. The flash gold plating provides corrosion protection for the signal path.
Rated 5A per contact at 300V, this is a signal-density D-sub — the 5A limit per pin is typical for standard-density layouts, and the real-world derating depends on how many adjacent contacts carry current simultaneously. The press-fit pin requires a specific PCB hole size and plating thickness — the datasheet provides the recommended finished hole diameter and the press-in force limits. The board lock is a metal barb that engages the plated through-hole; ensure the PCB has the corresponding anchor holes per the manufacturer's footprint drawing.
The flange features female screwlocks (4-40) on the mating side — the matching receptacle should have male screwlocks or accept a 4-40 jack-screw. The mounting type is through-hole, but the press-fit termination means no solder wave or reflow is needed; the connector is pressed into the board and the board lock holds it during handling.