Board to board connector’s unique floating structure absorbs misalignment errors

The Hirose FunctionMAX FX20 0.5 mm SMT board to board connectors with a unique floating structure absorbs mounting misalignment errors in applications where multiple stacking connectors are used. They are available now from RS Components. The FX20 series header connector has a floating structure embedded inside the fixed base of the housing. This floating structure offers a degree of play between the contacts during mating of + 0.6mm minimum in the XY directions. The floating contacts self-centre in both the X and Y direction, and absorb misalignment errors ensuring safe and accurate mating. The floating feature of these board to board connectors also remove stress caused by mounting placement errors and prevent resulting solder cracking and the requirement for corrective re-work to be done. Large mating guides on each side of the header also provide for an alignment movement of ±1.2mm in the XY directions. These guides make mating easier, prevent incorrect insertion and ensure that a secure connection is made. The floating feature enables them to withstand severe conditions in industrial and automotive applications. The receptacle connectors include self-cleaning dual beam contacts which give a high resistance to vibration and improved contact reliability. These dual beam contacts are made of a high conductivity material and have 0.5A current capacity per pin. The clearance between the contact and housing is intended to prevent capillary action, protecting the contact area from solder wicking and flux penetration during assembly.