What this 16-position AMPMODU receptacle does on the board
The 3-1734506-1 is a dual-row board-to-board receptacle from TE's AMPMODU series, with 16 positions at 2.00 mm pitch — the same spacing on both rows, so the footprint mirrors a matching 2.00 mm pin header. Rated 250 VAC and housed in UL94 V-0 thermoplastic, it fits inside equipment enclosures where flame rating is required.
At 2.00 mm pitch, the board footprint is tighter than the older 2.54 mm AMPMODU headers — you get 16 signal paths in roughly the same board edge as a 12-position 0.100" header. The dual-row layout with 0.079" row spacing keeps the overall width under 0.35" across the outer pins, which helps when routing traces between the rows on a two-layer board.
Lifecycle and procurement posture
The base product number 1734506 covers the series; this specific variant carries the 16-position, gold-plated, through-hole configuration in bulk packaging.