An apparatus which establishes an electrical feedthrough for a substrate, such as a housing wall of a data storage device enclosure. A one-piece dielectric body has a base portion configured for support adjacent the substrate, a first projection extending from the base portion through an aperture of the substrate, and a second projection extending from the base portion opposite the first projection. At least one, and preferably a plurality of, electrically conductive traces are plated onto the dielectric body. The trace(s) continuously extend along the first projection, the base portion and the second projection. The dielectric body is preferably formed of a plateable plastic, and the trace(s) are preferably formed thereon using a suitable metallization process. A flex circuit comprising a substantially rectangular, flexible dielectric ribbon preferably attaches to the second projection to establish an electrical communication path with a component interior to the substrate, such as an actuator.

 
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