Hirose 0.5mm FX22 0.5mm Board to Board Header and Receptacle Connectors FX22 0.5mm board to board header and receptacle connectors that allow for a coplanar board to board connection. The FX22 0.5mm board to board PCB header connectors have a unique floating feature embedded inside the housing that absorbs mounting misalignement by allowing an alignment movement of ±0.6mm in the X and Z directions. Large self alignment guides on either side of the FX22 connector allow for an alignment movement of ±1.2 mm in the X and Z directions for accurate mating and help prevent misinsertion. The FX22 board to board receptacle connectors feature vibration resistant self cleaning double beam contacts ensuring high contact reliability. With an extremely low profile of just 4.2mm these FX22 0.5mm board to board header and receptacle connectors can fit into spaces as small as 5mm making them ideal for use in applications where higher density mounting is required. Typical applications for these FX22 0.5mm board to board header and receptacle connectors include industrial equipment, smart meters, medical devices, BTS, measuring instruments and projectors.