| 摘要 |
Provided are laminated type transformer parts, which are constituted to have no difference between the inductance values of a primary side coil and a secondary side coil so that they exhibit the actions of desired characteristics without being constricted in the packaging direction. The laminated type transformer parts comprise a chip body (2) including a primary side coil (4) and a secondary side coil (5), and first to fourth external electrodes (3-1 to 3-4). The primary side coil (4) is constituted of a body portion (45A), a first outgoing line (46) and a second outgoing line (47), and the secondary side coil (5) is constituted of the body portion (45A), a third outgoing line (56) and a fourth outgoing line (57). The body portion (45A) has a first salient portion (45a) and a second salient portion (45b) arranged on a straight line (L1). The first outgoing line (46) and the fourth outgoing line (57) are set in a line-symmetry shape with respect to a center line (L2) positioned at the center between the leading end portions of the first salient portion (45a) and the second salient portion (45b) and perpendicular to the laminar direction. The second outgoing line (47) and the third outgoing line (56) are also set in a line-symmetry shape with respect to the center line (L2). ® KIPO & WIPO 2009
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