Design Engineering Note: 2-Position High-Current Header
The Molex 2119370003 is a 2-circuit, 2-row header from the Coeur PowerWize 211937 series, designed for board-to-cable/wire power interconnects where each circuit carries 120 A — bus-level current that typically feeds a main DC rail or high-power distribution point, not a signal line. Termination is a hybrid — surface mount for the board-side attachment, with screw-clamp wire termination for the cable side. This suits applications where the header is soldered to a PCB but field wiring is done via a screw terminal rather than a crimp-and-poke contact.
Selection Context: Where This Fits in the Series
The 2119370003 is the 2-position member of the Coeur PowerWize 211937 series. At 120 A per circuit and 300 V, it is a dedicated power header — not a signal or mixed-use part. The 2-position count means it serves as a single-pair power input or output on a board, often paired with a mating receptacle that accepts the same 120 A rating. The 0.750" row spacing is fixed across the series, so the footprint is consistent if you later need a higher position count in the same family.