The Molex 2131910003 is a busbar receptacle plug from the PowerPlane series — a heavy-duty power interconnect designed to bolt directly onto a busbar, not crimp into a harness. The terminal type is Busbar Receptacle Plug, and the termination method uses screw, rivet, or stud hardware, so this is a mechanical fastening job, not a solder or crimp operation. The black housing and tray packaging are standard for this assembly. It carries the base product number 213191 and the internal description 10RA BBC ASSEMBLY_SCREW, confirming it's a screw-attached busbar connector assembly.
Bolting It Down — Termination and Installation
Termination is via screw, rivet, or stud — no crimp tool, no solder iron. The busbar receptacle plug design mates with a matching busbar tab; the hardware pulls the contact faces together for a low-resistance joint.
Lifecycle and Compliance — Still in Production
The 2131910003 is Active in production, so no last-time-buy scramble. It is ROHS3 Compliant, which covers the latest EU exemption sunset dates.
The 2131910003 sits alongside 2131910001 and 2131910004 in the same PowerPlane busbar receptacle plug family. The difference between these three variants is not documented in the available spec fields — the base product number 213191 is shared, and the last two digits of the full order code (0001, 0003, 0004) likely denote variations in hardware (screw vs rivet vs stud size), plating, or packaging. Without dimensional or current rating data in the listing, treat each as a distinct BOM line item — do not assume interchangeability without checking the manufacturer's full product drawing.