2.00 mm Pitch Breakaway — Board Layout Fit
The 0.157 inch (4.00 mm) mating pin length engages standard AMPMODU receptacles; the 0.110 inch (2.79 mm) post length clears most single-layer boards without bottom-side interference.
Gold Mating Finish — Mating Cycle Budget
This is a thin flash layer — adequate for occasional board-to-board mating during assembly or field service, but not rated for high-cycle reconnect duty.
Peer Comparison — 1376779-2
Key differences: 1376779-2 carries a thicker 8.00 µinch gold layer (better for moderate reconnect duty) and a higher 3 A current rating. However, 2355172-4 is stocked in bulk packaging (tube or bag), while 1376779-2 ships in a box — a factor for automated assembly feeders.