COMPOSITE ELECTRONIC COMPONENT

摘要

A composite electronic component with a built-in coil is provided which can be produced inexpensively, which can effectively increase insulating reliability, and which has the antistatic function. Coil wirings are disposed inside a sintered body that is formed by stacking a plurality of ferrite layers, which are fired as an integral unit. Voltage nonlinear members are incorporated in the sintered body at a different height position from those of the coil wirings. First inner electrodes and second inner electrodes are disposed in opposing relation with the voltage nonlinear members interposed therebetween. A magnetic circuit forming portion is constituted by a part of the ferrite layers and the coil wirings in a portion in which the coil wirings are arranged, and an antistatic portion is constituted in a portion in which the remaining ferrite layers, the voltage nonlinear members, and the first and second inner electrodes are arranged.

主权项

1. A composite electronic component comprising:
a sintered body formed by stacking a plurality of ferrite layers and by firing the ferrite layers as an integral unit; a coil wiring disposed inside the sintered body; a voltage nonlinear member incorporated in the sintered body and positioned at a height different from a height of the coil wiring in the sintered body; first and second inner electrodes opposed to each other with the voltage nonlinear member interposed between the first and second inner electrodes; and first, second, and third outer electrodes formed on one or more outer surfaces of the sintered body, wherein the first outer electrode is electrically connected to one end of the coil wiring, the second outer electrode is electrically connected to the other end of the coil wiring, the third outer electrode is electrically connected to the second inner electrode, the first or second outer electrode is electrically connected to the first inner electrode, a magnetic circuit forming portion is constituted by a part of the ferrite layers and the coil wiring in a portion in which the coil wiring is arranged, and an antistatic portion is constituted in a portion in which a remaining part of the ferrite layers, the voltage nonlinear member, and the first and second inner electrodes are arranged.