The 2355177-2: In a vibration environment, a secondary locking feature on the receptacle side (if available) is advisable.
Electrical and Thermal Ratings for the Signal Path
Derate current above 85°C ambient per the AMPMODU derating curve in the product drawing.
Comparing Position Counts Within the Same Footprint Family
The 2355177-2 shares its pitch, plating, current rating, and overall length with the 3-position 2355177-3 and 4-position 2355177-4. The only difference is the number of circuits — the board footprint scales linearly by 2.00 mm per added position. If a BOM calls for 3 or 4 positions, the same design rules apply.