An input device (1; 1E) comprising: a case (2; 2D; 2E) having a fixed electrode ; a moving member having a moving electrode arranged to face the fixed electrode , the moving electrode being configured to be displaced with respect to the fixed electrode ; a pusher arranged opposite from the fixed electrode with respect to the moving electrode ; and a holder (6; 6A; 6B; 6C; 6E) including a frame portion and a coupling portion , the frame portion being gripped by the case (2; 2D; 2E), the coupling portion coupling the pusher to the frame portion inside an opening of the frame portion to allow the pusher to be displaced along thickness of the frame portion , at least one member selected from the group consisting of the case (2; 2D; 2E) and the holder (6; 6A; 6B; 6C; 6E) including a restricting portion (64; 64A; 641B, 642B; 64C; 64E), the restricting portion (64; 64A; 641B, 642B; 64C; 64E) protruding toward, and coming into contact with, the other member selected from the group consisting of the case (2; 2D; 2E) and the holder (6; 6A; 6B; 6C; 6E), to restrict dragging of the frame portion into the opening of the frame portion via the coupling portion while the pusher is being displaced toward the moving electrode , the frame portion has: a first surface located closer to the fixed electrode ; and a second surface located more distant from the fixed electrode , characterized in that the case (2; 2D; 2E) has: a first part facing the first surface of the frame portion ; and a second part facing the second surface of the frame portion , the frame portion being sandwiched between the first part and the second part, and the restricting portion (64; 64A; 641B, 642B; 64C; 64E) is provided between the first surface of the frame portion and the first part of the case (2; 2D; 2E) and/or between the second surface of the frame portion and the second part of the case (2; 2D; 2E). a case (2; 2D; 2E) having a fixed electrode ; a moving member having a moving electrode arranged to face the fixed electrode , the moving electrode being configured to be displaced with respect to the fixed electrode ; a pusher arranged opposite from the fixed electrode with respect to the moving electrode ; and a holder (6; 6A; 6B; 6C; 6E) including a frame portion and a coupling portion , the frame portion being gripped by the case (2; 2D; 2E), the coupling portion coupling the pusher to the frame portion inside an opening of the frame portion to allow the pusher to be displaced along thickness of the frame portion , at least one member selected from the group consisting of the case (2; 2D; 2E) and the holder (6; 6A; 6B; 6C; 6E) including a restricting portion (64; 64A; 641B, 642B; 64C; 64E), the restricting portion (64; 64A; 641B, 642B; 64C; 64E) protruding toward, and coming into contact with, the other member selected from the group consisting of the case (2; 2D; 2E) and the holder (6; 6A; 6B; 6C; 6E), to restrict dragging of the frame portion into the opening of the frame portion via the coupling portion while the pusher is being displaced toward the moving electrode , the frame portion has: a first surface located closer to the fixed electrode ; and a second surface located more distant from the fixed electrode , characterized in that the case (2; 2D; 2E) has: a first part facing the first surface of the frame portion ; and a second part facing the second surface of the frame portion , the frame portion being sandwiched between the first part and the second part, and the restricting portion (64; 64A; 641B, 642B; 64C; 64E) is provided between the first surface of the frame portion and the first part of the case (2; 2D; 2E) and/or between the second surface of the frame portion and the second part of the case (2; 2D; 2E). <EOS>