The 2016450121: This is a 12-position, dual-row header from the Molex Spot-On 1.5 201645 series.
Termination is solder to surface-mount pads — no through-hole, so the board requires no drilled holes under the header. The part is packaged in Tape & Reel (also available in Cut Tape) and includes a Pick and Place feature, meaning the vacuum nozzle has a flat pick-up area on top of the shroud. This makes it suitable for automated assembly lines where the reel feeds directly into the placement machine.
This header mates with a Spot-On 1.5 receptacle housing (Molex series 201646) that accepts crimp terminals. The latch holder on the header engages a corresponding ramp on the receptacle for the locking feature.
