Patent ID: 8098116

Claim:
An LC composite electronic component comprising: a first capacitor unit in which a first ground electrode layer, having a first ground electrode formed on a first insulating layer, and a first signal electrode layer, having a first signal electrode formed on a second insulating layer, are stacked; a first coil unit in which a first coil electrode layer, having a first coil electrode formed on a third insulating layer, is stacked; a second capacitor unit in which a second ground electrode layer, having a second ground electrode formed on a fourth insulating layer, and a second signal electrode layer, having a second signal electrode formed on a fifth insulating layer, are stacked; and a second coil unit in which a second coil electrode layer, having a second coil electrode formed on a sixth insulating layer, are stacked, wherein the first capacitor unit and the first coil unit and the second capacitor unit and the second coil unit are stacked to form a multilayer structure, the LC composite electronic component further comprises: a first external electrode disposed at the multilayer structure and coupled to a first end of the first coil electrode; a second external electrode disposed at the multilayer structure and coupled to a second end of the first coil electrode; a third external electrode disposed at the multilayer structure and coupled to a first end of the second coil electrode; and a fourth external electrode disposed at the multilayer structure and coupled to a second end of the second coil electrode; the first coil unit further comprises: a first lead-out electrode coupling the first coil electrode and the first external electrode; and a second lead-out electrode coupling the first coil electrode and the second external electrode; the second coil unit comprises: a third lead-out electrode coupling the second coil electrode and the third external electrode; and a fourth lead-out electrode coupling the second coil electrode and the fourth external electrode; the first lead-out electrode and the third lead-out electrode face each other via a seventh insulating layer; and a first noise circulating capacitance is formed between the first lead-out electrode and the third lead-out electrode.