A Z-directed component for mounting in a mounting hole in a printed circuit board, comprising: a body having a top surface, a bottom surface and a side surface, a cross-sectional shape that is insertable into the mounting hole in the printed circuit board, a portion of the body being composed of an insulator; a first conductive channel extending through an interior portion of the body along the length of the body from the top surface to the bottom surface, the first conductive channel forming a signal path through the body; and a plurality of alternating plates positioned within the body, a portion of the body between the alternating plates being composed of a dielectric material, the alternating plates and the dielectric material forming a capacitor, a first set of the alternating plates being connectable to a first voltage and a second set of the alternating plates being connectable to a second voltage different from the first voltage, characterized in that the Z-directed component comprises a second conductive channel and a third conductive channel each extending through the interior portion of the body along the length of the body, the second and third conductive channels (730, 732) being positioned next to and on opposite sides of the first conductive channel in position to control transmission line impedance through the first conductive channel, the second conductive channel being electrically connected to one of the first set of alternating plates and the second set of alternating plates (710a, 710b) but not the other of the first set of alternating plates and the second set of alternating plates (710a, 710b) and the third conductive channel being electrically connected to one of the first set of alternating plates and the second set of alternating plates (710a, 710b) but not the other of the first set of alternating plates and the second set of alternating plates (710a, 710b). a body having a top surface, a bottom surface and a side surface, a cross-sectional shape that is insertable into the mounting hole in the printed circuit board, a portion of the body being composed of an insulator; a first conductive channel extending through an interior portion of the body along the length of the body from the top surface to the bottom surface, the first conductive channel forming a signal path through the body; and a plurality of alternating plates positioned within the body, a portion of the body between the alternating plates being composed of a dielectric material, the alternating plates and the dielectric material forming a capacitor, a first set of the alternating plates being connectable to a first voltage and a second set of the alternating plates being connectable to a second voltage different from the first voltage, characterized in that the Z-directed component comprises a second conductive channel and a third conductive channel each extending through the interior portion of the body along the length of the body, the second and third conductive channels (730, 732) being positioned next to and on opposite sides of the first conductive channel in position to control transmission line impedance through the first conductive channel, the second conductive channel being electrically connected to one of the first set of alternating plates and the second set of alternating plates (710a, 710b) but not the other of the first set of alternating plates and the second set of alternating plates (710a, 710b) and the third conductive channel being electrically connected to one of the first set of alternating plates and the second set of alternating plates (710a, 710b) but not the other of the first set of alternating plates and the second set of alternating plates (710a, 710b).