Right-angle 12-position header for board-to-wire harnesses
The 4-794678-2 is a 12-position, 2-row header from TE's Micro MATE-N-LOK series, pitched at 3.00 mm on both the row and contact spacing. It is a through-hole right-angle mount, which means the header sits perpendicular to the board — useful when the wire harness enters parallel to the PCB and you need to keep the z-height low. The gold on the mating face supports repeated connect-disconnect cycles in field-service or test applications — the 15 µinch thickness is a standard industrial grade that handles several hundred cycles without fretting corrosion. The housing is fully shrouded with four walls and a locking ramp, plus a board lock feature that anchors the header during reflow and resists shear forces from the cable assembly.
Operating envelope and current handling
The current rating is listed as varying by wire gauge — in the Micro MATE-N-LOK system, the limiting factor is the crimp terminal and the wire size, not the header pins themselves. For a harness designer, this means the per-contact current is set by the terminal and wire chosen, typically 3-5 A depending on gauge and ambient temperature. The contact material is brass with a square pin shape, and all 12 positions are loaded — no empty cavities to worry about on the BOM.