An electronic component which includes a bottom surface, and a plurality of side-surfaces, comprising: a magnetic-body core (601; 801; 901) including a plate-shaped portion (611; 811; 911) and a core portion (612; 812; 912) which extends from the upper surface of the plate-shaped portion (611; 811; 911); a winding wire (602; 802; 902) which includes a wound portion (621; 821; 921) wound by a rectangular wire into an edgewise winding form and two non-wound portions (622, 623; 822, 823; 922, 923) extending from the wound portion (621; 821; 921) up to two distal ends (622a, 623a; 822a, 823a; 922a, 923a), and of which the core portion (612; 812; 912) is inserted through the wound portion (621; 821; 921); and a magnetic exterior body (603; 803; 903) which covers at least the wound portion (621; 821; 921) and the core portion (612; 812; 912), wherein the two non-wound portions (622, 623; 822, 823; 922, 923) are respectively arranged along the bottom surface, and at least one of the side-surfaces, and the portions arranged along the bottom surface of the two non-wound portions (622, 623; 822, 823; 922, 923) are electrodes; characterized in that: at least one of the non-wound portions (622, 623; 822, 823; 922, 923) has a step portion (622c, 623c) between the winding wire portion (621; 821; 921) and one of side surfaces of the magnetic exterior body (603; 803; 903); and heights of side-surface exposed-portions of the non-wound portions (622, 623; 822, 823; 922, 923) at the same side surface of the magnetic exterior body (603; 803; 903) are designed to be identical to each other. a magnetic-body core (601; 801; 901) including a plate-shaped portion (611; 811; 911) and a core portion (612; 812; 912) which extends from the upper surface of the plate-shaped portion (611; 811; 911); a winding wire (602; 802; 902) which includes a wound portion (621; 821; 921) wound by a rectangular wire into an edgewise winding form and two non-wound portions (622, 623; 822, 823; 922, 923) extending from the wound portion (621; 821; 921) up to two distal ends (622a, 623a; 822a, 823a; 922a, 923a), and of which the core portion (612; 812; 912) is inserted through the wound portion (621; 821; 921); and a magnetic exterior body (603; 803; 903) which covers at least the wound portion (621; 821; 921) and the core portion (612; 812; 912), wherein the two non-wound portions (622, 623; 822, 823; 922, 923) are respectively arranged along the bottom surface, and at least one of the side-surfaces, and the portions arranged along the bottom surface of the two non-wound portions (622, 623; 822, 823; 922, 923) are electrodes; characterized in that: at least one of the non-wound portions (622, 623; 822, 823; 922, 923) has a step portion (622c, 623c) between the winding wire portion (621; 821; 921) and one of side surfaces of the magnetic exterior body (603; 803; 903); and heights of side-surface exposed-portions of the non-wound portions (622, 623; 822, 823; 922, 923) at the same side surface of the magnetic exterior body (603; 803; 903) are designed to be identical to each other. at least one of the non-wound portions (622, 623; 822, 823; 922, 923) has a step portion (622c, 623c) between the winding wire portion (621; 821; 921) and one of side surfaces of the magnetic exterior body (603; 803; 903); and heights of side-surface exposed-portions of the non-wound portions (622, 623; 822, 823; 922, 923) at the same side surface of the magnetic exterior body (603; 803; 903) are designed to be identical to each other.