Murata Manufacturing Co., Ltd.

Hitoaki Kimura

Hirobumi Adachi

Mitsuru Ikeda

Takashi Sawada

A multilayer ceramic capacitor includes a laminate and an external electrode, the laminate includes a central layer portion in which first and second internal electrode layers are alternately laminated with a dielectric ceramic layer therebetween, a peripheral layer portion sandwiching the central layer portion in a lamination direction and made of a ceramic material, and a side margin sandwiching the central layer portion and the peripheral layer portion in a width direction and made of a ceramic material, the side margin includes an inner layer on an innermost side in the width direction and an outer layer on an outermost side in the width direction, and an element of an additive of the ceramic material included in the peripheral layer portion is the same as an element of an additive of a ceramic material included in the inner layer.

Multilayer ceramic capacitor

A composite electronic component includes a capacitor device and a resistance device which is disposed on the capacitor device and includes a resistor. The capacitor device includes a capacitor body and a first external electrode, a second external electrode, a third external electrode, and a fourth external electrode each provided on a surface of the capacitor body. The resistor is electrically connected to each of the third external electrode and the fourth external electrode.

Capacitor device and composite electronic component including the same

A three terminal capacitor includes a capacitor element including first through sixth surfaces, first-side and second-side outer electrodes, a center outer electrode between the first-side and second-side outer electrodes, and conductor layers. The conductor layers include a pair of outermost conductor layers that are respectively nearest to the fifth and sixth surfaces, and thicknesses of the pair of outermost conductor layers are greater than a thickness of a center conductor layer nearest to a center of the capacitor element in a width direction.

Capacitor with center outer electrode disposed between first and second outer electrodes

A capacitor element includes first through sixth surfaces, a first-side outer electrode at a first end portion of the first surface and on portions of the third, fifth, and sixth surfaces, a second-side outer electrode at a second end portion of the first surface and on portions of the fourth, fifth, and sixth surfaces, a center outer electrode at a portion of the first surface between the first-side outer electrode and the second-side outer electrode and on portions of the fifth and sixth surfaces, and two outermost conductor layers of first and second conductor layers are disposed at both outermost ends in the width direction, a first of the two outermost conductor layers next to one of the first conductor layers with an inner dielectric layer therebetween is connected to the center outer electrode, and a second of the pair of outermost conductor layers next to one of the second conductor layers with an inner dielectric layer therebetween is connected to the first-side outer electrode and the second-side outer electrode.

Three-terminal capacitor

A three-terminal capacitor includes a capacitor element including first through sixth surfaces, first-side and second-side outer electrodes, a center outer electrode between the first-side and second-side outer electrodes, and conductor layers within the capacitor element. A height His greater than a height H, where the height Hrepresents a higher one of a height at a center of a portion of the first-side outer electrode on the fifth surface and a height at a center of a portion of the first-side outer electrode on the sixth surface, and the height Hrepresents a height at a center of a portion of the first-side outer electrode on the third surface, wherein the height Hand the height Hextend in the thickness direction.

Three-terminal capacitor including double-side oblique portion

Capacitor with a center outer electrode disposed between first and second outer electrodes

A length of a first-side outer electrode is E, a length of a second-side outer electrode is E, a length of a center outer electrode is E, a distance between the first-side outer electrode and the center outer electrode is ME, a distance between the center outer electrode and the second-side outer electrode is ME, a length of a capacitor element is L, a width from an edge of the first side second extending portion closer to a third surface to the third surface is ML, a width from an edge of the first side second extending portion closer to a fourth surface to an edge of the first-side outer electrode on a first surface is MR, a width from an edge of the first extending portion closer to the third surface to an edge of the center outer electrode on the first surface closer to the third surface is ML, and a width from an edge of the first extending portion closer to the fourth surface to an edge of the center outer electrode on the first surface closer to the fourth surface is MR, such that E+ME+E+ME+E&#x3e;L, |ME&#x2212;ME|&#x3c;50 &#x3bc;m, ML&#x3c;MR, and MR&#x3e;ML are satisfied.

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Nagaokakyo, Japan

Hitoaki Kimura