28-Position Dual-Row Receptacle at 0.100" Pitch
The 6-534998-4: This AMPMODU Mod IV receptacle carries 28 circuits on two rows spaced 0.100" apart — a common footprint for board-to-board or cable-to-board interconnects where each signal path needs a dedicated contact. The through-hole solder tails, 0.125" (3.18 mm) long, anchor into plated through-holes on a typical 0.062" PCB.
Gold Mating Finish and 2 A Current Ceiling
For signal-level loads (logic, sensor, low-power I/O) this is well within the margin; for loads near 2 A, derate above 25°C per the product drawing.
No pin-compatible replacement is listed — the AMPMODU Mod IV series continues in production.
In a vibration-prone assembly, a secondary retention method (board lock or adhesive) should be considered.