Assembly having a flexible printed circuit board

An arrangement, comprising a supporting body (1) on which a flexible circuit board (2, 3) is arranged, wherein the flexible printed circuit board (2, 3) a backing layer (2), on which is arranged at least one electrical line (3) , in view of the task to design an arrangement of the aforementioned type and further that a reliable removal of heat is ensured, which is generated by electrical components, characterized in that the electrical line (3) of the flexible printed circuit board (2 , 3) is thermally conductive and / or electrically conductively connected to the carrier body (1), wherein heat and / or electric current of the electric line (3) to the supporting body (1) can be discharged.