A device, including a housing of a medical device configured to be implanted in a human recipient, the housing having at least one opening on one side of the housing, and a linear feedthrough assembly, wherein the linear feedthrough assembly closes the opening, the housing has a length, a width, and a height, wherein the height is the smallest dimension, and the opening is located in at least about the center of at least one of the length or the width, and the opening faces a direction normal to a plane established by the length and the width.