The 640900-3 is a 5-position, single-row, through-hole header from the Universal MATE-N-LOK series by TE Connectivity. Rated at 12A per circuit at 600VAC, it handles moderate power distribution in a compact layout. The 4-wall shrouded housing with a locking ramp protects the pins and secures the connection against vibration.
With a 6.35mm pitch, the board footprint is generous enough for routing traces between pads even on a 2-layer board. The 4-wall shroud also prevents pin damage during blind mating. The white insulator color is standard for this series.