A vehicular AC generator includes: a rotor (1) with a plurality of magnetic poles (113), assuming a shape for suppressing bias magnetism, and disposed along a circumferential direction, which includes a field winding (12); a stator (2) disposed so as to leave a gap between the rotor (1) and the stator (2); and a semiconductor element that rectifies an AC current induced at a stator coil (105) wound at the stator (2) as power is supplied to the field winding (112) at the rotor (1) so as to convert the AC current to a DC current, wherein: the stator (2) is formed by laminating electromagnetic steel plates; and a resistance value of the stator coil (105) wound at the stator (2) is set to a value equal to or less than a predetermined value.