Electric rotating machine apparatus and electric power steering apparatus

An electric rotating machine apparatus comprising:

• an electric rotating machine having a winding and an output axle;
• a power module having a switching device connected with the winding;
• a bus bar that is held by a bus-bar holder and is included in a power-supply path to the power module;
• two or more smoothing capacitors connected with the bus bar;
• and
• a capacitor holder in which at a more outer side in a radial direction of the electric rotating machine than the bus-bar holder is, the two or more smoothing capacitors are arranged in an axial direction of the electric rotating machine, and that holds the two or more smoothing capacitors from an outer circumferential side of the electric rotating machine,
• wherein the capacitor holder includes:
• a pressing portion that is provided at a terminal side of the smoothing capacitor connected with the bus bar and to which the smoothing capacitor is pressed, and
• a snap fitting portion that is provided at a side opposite to the pressing portion side across the smoothing capacitor and that fixes the smoothing capacitor.