0.40 mm Pitch, 10-Position Mezzanine Receptacle
The Hirose DF40B-10DS-0.4V(58) is a 10-position receptacle from the DF40 series of board-to-board mezzanine connectors. It uses a 0.016" (0.40mm) pitch across two rows of center strip contacts, with a mated stacking height of 1.5mm and a height above board of 0.057" (1.45mm). The gold-plated contacts and solder retention features are designed for reliable SMT assembly in space-constrained, fine-pitch interconnects typical of mobile devices, cameras, and compact modules.
The 0.057" (1.45mm) height above board is the receptacle's own profile on the PCB.
Solder Retention for Reflow Reliability
The solder retention feature provides additional mechanical hold during reflow, reducing the risk of tombstoning or shifting on fine-pitch 0.40mm pads. This is a practical advantage for high-volume SMT lines where placement accuracy and reflow yield are under constant pressure.
The DF40B-10DS-0.4V(58) carries an Active product status, with no end-of-life notice on record. It is RoHS compliant.