0.40 mm pitch, 18-position plug for tight mezzanine stacks
Its defining dimensions are the 0.016" (0.40 mm) pitch — which sets the board footprint density — and the 0.023" (0.59 mm) height above board, which mates to a 0.7 mm stacking height. This puts it in the ultra-low-profile class, suited for handheld or compact embedded assemblies where every tenth of a millimeter of z-height is budgeted. The connector uses a plug with outer shroud contacts, meaning the signal contacts are recessed within a plastic shroud that guides alignment during mating and protects the contacts from mechanical damage before assembly. Surface-mount termination and the inclusion of pick-and-place features and solder retention tabs mean this part is designed for automated high-volume assembly. The solder retention features hold the connector in place during reflow, preventing tombstoning or shift on the pad.
Confirm the receptacle order code matches the same 18-position, 0.40 mm pitch layout.