Board Layout Fit: 2.00 mm Pitch, 4 Positions, Single Row
The 2355181-4: That narrow footprint suits dense PCB layouts where every millimetre of real estate is budgeted. Unshrouded means the mating receptacle aligns by the board layout, not a housing key — fine for controlled assembly environments, but in high-vibration applications the lack of a shroud means the mated pair relies entirely on the receptacle's latch for retention.
Current and Contact: 2 A, Gold-Plated Mating Face
The 125 VAC/DC rating and wide temperature range from -40°C to 125°C mean this header can live in automotive under-hood or industrial cabinet environments without derating — as long as the current stays under 2 A per contact.
Peer Comparison: 2355181-4 vs 1376779-2
The difference: 1376779-2 carries a 3 A current rating and 250 VAC voltage rating, both higher than the 2 A / 125 VAC of 2355181-4. If your BOM needs a bit more headroom without changing the footprint, 1376779-2 is the swap candidate.