A feed-through is provided that includes a flange and a first functional component. The flange has a through-opening in which the first functional component is arranged and is connected to the flange such that the through-opening is sealed. The first functional component has at least one deformation region, in which a recess is provided such that the mechanical stability of the first functional component is reduced in the deformation region. In this manner, the first functional element can be deformed in the deformation area when mechanical load is applied.