Connector identity and series position
The Molex 2121955018 is a female receptacle (socket) terminal belonging to the Coeur Sentrality 212195 series. The 3.4 mm SMT float top mount feature indicates this contact is used in a board-level connector system that allows self-alignment during automated assembly, reducing stress on solder joints.
Termination and mounting detail
Crimp termination is the standard for this socket — it allows the wire to be attached without soldering, using a dedicated crimp tool that deforms the barrel around the stripped conductor. The SMT float top mount means the contact is designed to be placed on a PCB pad with some lateral compliance, accommodating thermal expansion or board warpage during reflow. This is a socket terminal; it mates with the corresponding male pin (tab) from the matching header or plug housing in the Coeur Sentrality 212195 family.
Tape & Reel packaging (Cut Tape also available) suits automated pick-and-place lines for volume production. No direct equivalent or cross-reference from another manufacturer is recorded; the mating half is the corresponding male terminal and housing from the same Coeur Sentrality 212195 series.