What This Connector Is — DF12 Series Mezzanine Receptacle
The Hirose DF12A(3.0)-50DS-0.5V(81) is a 50-position receptacle with center strip contacts from the DF12 series, designed for board-to-board mezzanine stacking. It uses a 0.50mm pitch across two rows and mounts via SMT. The connector is keyed by a board guide feature for alignment during assembly. Typical applications include dense signal interconnects in portable electronics, cameras, and handheld devices where a low-profile 3mm mated stack height is required.
The 0.50mm pitch and 50 positions define the board footprint — this is a dense, fine-pitch connector that requires precise PCB layout and SMT process control.
Mating Half and Build-to-Print
The mating header will carry the (3.0) suffix in its order code and the same 50-position, 0.50mm pitch layout. For a complete assembly BOM, you need both the receptacle and its mating header — the contacts are integral to the housing, so no separate crimp terminals are required. The SMT termination means the connector is reflow-soldered directly to the PCB.