An automotive alternator comprising: a stator (40, 50, 50A, 50B, 50C) having: an annular stator core (15, 51) having two slots (15a, 51a) per phase per pole; a stator winding (41, 52, 52A, 53, 54) mounted to said stator core, and a rectifier for converting alternating current from said stator into direct current, wherein said stator winding (41, 52, 52A, 53, 54) is provided with six winding phase portions (42a-42f, 53a-53f, 54a-54f) each installed in a slot group including every sixth slot of said slots, and each of said slot groups being successively offset by one slot, each pair of said six winding phase portions (42a-42f, 53a-53f, 54a-54f) having a phase difference corresponding to an electrical angle of approximately 30 degrees is connected by an interphase crossover portion (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f), said interphase crossover portions (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f) are arranged such that they are separated in an axial direction from coil ends of said stator winding, so that said interphase crossover portions (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f) are arranged such that they are offset in a circumferential direction, wherein they do not overlap each other in a radial direction, said interphase crossover portions are constituted by: conductor wires drawn in an axial direction from said winding phase portions (54a-54f); and a connection member (124a-124f, 125a-d, 125b-e, 125c-f) connecting said conductor wires at a position separated in an axial direction from said coil ends, said rectifier comprises a circuit board constructed by insert molding into a resin said connection member (124a-124f, 125a-d, 125b-e, 125c-f), and said connection member (124a-124f, 125a-d, 125b-e, 125c-f) being formed integrally in said circuit board so as to not overlap with a diode constituting said rectifier relative to a radial direction. an annular stator core (15, 51) having two slots (15a, 51a) per phase per pole; a stator winding (41, 52, 52A, 53, 54) mounted to said stator core, and a rectifier for converting alternating current from said stator into direct current, wherein said stator winding (41, 52, 52A, 53, 54) is provided with six winding phase portions (42a-42f, 53a-53f, 54a-54f) each installed in a slot group including every sixth slot of said slots, and each of said slot groups being successively offset by one slot, each pair of said six winding phase portions (42a-42f, 53a-53f, 54a-54f) having a phase difference corresponding to an electrical angle of approximately 30 degrees is connected by an interphase crossover portion (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f), said interphase crossover portions (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f) are arranged such that they are separated in an axial direction from coil ends of said stator winding, so that said interphase crossover portions (80a-d, 80b-e, 80c-f, 124a-124f, 125a-d, 125b-e, 125c-f) are arranged such that they are offset in a circumferential direction, wherein they do not overlap each other in a radial direction, said interphase crossover portions are constituted by: conductor wires drawn in an axial direction from said winding phase portions (54a-54f); and a connection member (124a-124f, 125a-d, 125b-e, 125c-f) connecting said conductor wires at a position separated in an axial direction from said coil ends, conductor wires drawn in an axial direction from said winding phase portions (54a-54f); and a connection member (124a-124f, 125a-d, 125b-e, 125c-f) connecting said conductor wires at a position separated in an axial direction from said coil ends, said rectifier comprises a circuit board constructed by insert molding into a resin said connection member (124a-124f, 125a-d, 125b-e, 125c-f), and said connection member (124a-124f, 125a-d, 125b-e, 125c-f) being formed integrally in said circuit board so as to not overlap with a diode constituting said rectifier relative to a radial direction.