The 9.91mm Pitch Tells You What This Housing Is For
The TE MATE-N-LOK 794117-1 is a 4-position single-row receptacle housing with a 9.91 mm pitch—wide enough that the board-side header footprint leaves room for heavy-gauge wire or hand-soldered repairs. The 9.91 mm pitch is the standout dimension here—it's roughly double the 5.08 mm pitch of a standard Mini-Fit or Micro-Fit housing. That extra real estate means the header's solder pads are widely spaced, reducing the risk of solder bridges in hand-assembly or wave-solder lines. It also allows the use of larger-gauge crimp terminals without crowding the cavity wall.
This receptacle housing accepts male pin contacts (contact type: male pin). The mating half is a TE MATE-N-LOK header with the same 9.91 mm pitch and 4 positions—typically a through-hole or right-angle pin header soldered to the PCB. The crimp terminals are ordered separately; common compatible TE part numbers include the 350686 series pins for 18-24 AWG wire. Confirm the wire gauge range against the specific terminal datasheet before committing to the BOM. The crimp termination requires a standard TE hand tool or automatic applicator. No secondary TPA (terminal position assurance) is listed for this housing—the primary lance is the only retention, so verify pull-force on the first sample.
How This Compares to the 5-Position 1379217-6
The closest functional sibling in the MATE-N-LOK family is the 1379217-6, a 5-position receptacle housing (3 standard + 2 power positions) in white rather than natural. Both are free-hanging, single-row, with locking ramp fastening and crimp termination. The 4-position 794117-1 is the simpler choice for a straight 4-circuit power or signal line; the 5-position 1379217-6 adds the mixed-gauge option for a dedicated power pair alongside signal contacts.
This is a standard catalog part, not a phase-out or last-time-buy risk. No official cross-reference or second-source beyond the TE MATE-N-LOK family itself.