Single-circuit 150 A power receptacle
The Molex 755425000 is the 1-position female receptacle member of the EXTreme PowerMass 75542 series — a black UL94 V-0 housing holding a single gold-plated contact rated 150 A at 600 V. Press-fit through-hole termination anchors it directly in the PCB without reflow, making it a board-mount power interconnect for industrial systems carrying high current on a single conductor.
Gold plating at 30.0 µin — why it matters at 150 A
The 30.0 µin (0.76 µm) gold thickness on the mating contact is the relevant figure for this current density. At 150 A through a single circuit, contact resistance and thermal rise at the interface are the governing constraints — a thinner plating would accelerate fretting and surface degradation under repeated thermal cycling. The gold-over-nickel stack protects the contact interface for the lifespan of the system. Operating temperature runs from -40 °C to 105 °C, giving the connector headroom in both cold-start and elevated-ambient industrial enclosures. The UL94 V-0 housing material sets the flame-retardance boundary for panel or enclosure-side mounting.
Press-fit termination — what it means for board layout
Press-fit through-hole termination fixes the footprint to a plated-through hole pattern rather than surface pads. The 150 A current path relies on the plated barrel for current capacity — attention to the thermal connection between the barrel and the PCB copper plane is required. Tray packaging is standard for this series at this current rating — the connector ships as a loose part, not on tape-and-reel, which is consistent with through-hole placement workflows rather than SMT pick-and-place.