Patent ID: 8665051

Claim:
A vertical transformer comprising a core provided with a middle leg extending approximately parallel to a first direction perpendicular to a mounting surface and installing a first and a second coils, a side leg extending approximately parallel to the first direction, a first connection part extending approximately parallel to a second direction and connecting an end portion of the middle leg and an end portion of the side leg, where the second direction is parallel to the mounting surface and connecting the middle leg and the side leg, and a second connection part extending approximately parallel to the second direction and connecting the other end portion of the middle leg and the other end portion of the side leg, which is closer to the mounting surface than the first connection part, a first bobbin provided with a first hollow cylinder where at least either the first or the second coil is wound, and a core on-board face connected to an end of the first hollow cylinder at a side closer to the first connection part and extended approximately parallel to the mounting surface, where the first connection part is on-board, and an adhesive hardened part connecting a connection side face and the core on-board face, where the connection side face is a face of the first connection part extended in order to intersect with the core on-board face, and formed by hardening an adhesion, wherein the core on-board face is provided with a positioning projection formed on both sides of the first connection part having the first connection part in between in the direction parallel to the mounting surface and intersecting the second direction, where the positioning projection is provided with a positioning part positioning the connection side face and projects from the core on-board face toward the first direction.