Rotary electric device and electric power steering device

A rotary electric device comprising:

• a rotary electric machine including a rotating shaft;
• a controller disposed side by side with the rotary electric machine in an axial direction along an axis of the rotating shaft and configured to control the rotary electric machine;
• and
• an electromagnetic shield covering the controller,
• wherein the controller includes
• a control board extending in the axial direction, an external connection terminal being connected to the control board, and
• a filter configured to attenuate a noise component to be propagated to the external connection terminal,
• the electromagnetic shield is formed in a tubular shape covering the entire control board and including a first top portion provided with a through-hole into which the external connection terminal is inserted, and a second top portion disposed closer to the rotary electric machine than the first top portion, and
• at least a part of the filter is mounted on the control board and is disposed between the first top portion and the second top portion in the axial direction.