| CPC H01G 4/12 (2013.01) [H01G 4/232 (2013.01); H01G 4/30 (2013.01)] | 18 Claims |
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1. A multilayer ceramic capacitor comprising:
a multilayer body including a plurality of dielectric layers and a plurality of internal electrode layers laminated alternately in a height direction, a first main surface and a second main surface which are opposed to each other in the height direction, a first end surface and a second end surface which are opposed in a length direction orthogonal or substantially orthogonal to the height direction, and a first lateral surface and a second lateral surface which are opposed to each other in a width direction orthogonal or substantially orthogonal to the height direction and the length direction; and
a pair of external electrodes respectively provided on both ends of the multilayer body in the length direction and spaced apart from each other; wherein
the plurality of internal electrode layers include:
first internal electrode layers which extend toward and reach the first end surface; and
second internal electrode layers which extend toward and reach the second end surface;
the pair of external electrodes include:
a first external electrode which is connected to the first internal electrode layers, and is provided on the first end surface, and at least one of a portion of the first main surface or a portion of the second main surface; and
a second external electrode which is connected to the second internal electrode layers, and is provided on the second end surface, and at least one of a portion of the first main surface or a portion of the second main surface;
when a dimension in the length direction between the first end surface and the second end surface of the multilayer body is defined as l, a dimension in the width direction between the first lateral surface and the second lateral surface is defined as w, and a dimension in the height direction between the first main surface and the second main surface is defined as t, a dimensional relationship w>l>t is satisfied;
the first internal electrode layers each include a first counter electrode portion which is located inside the multilayer body and is opposed to the second internal electrode layer, and a first extension portion which has a larger dimension in the width direction than the first counter electrode portion and is exposed at the first end surface, a portion of the first lateral surface and a portion of the second lateral surface; and
the second internal electrode layers each include a second counter electrode portion which is located inside the multilayer body and is opposed to the first internal electrode layer, and a second extension portion which has a larger dimension in the width direction than the second counter electrode portion and is exposed at the second end surface, a portion of the first lateral surface and a portion of the second lateral surface;
when a dimension in the length direction of each of lateral surface exposed portions, which are exposed at a portion of the first lateral surface and a portion of the second lateral surface, of the first extension portion and the second extension portion is defined as e1, the dimension e1 is about 10% or more and about 44% or less with respect to the dimension in the length direction of the multilayer body; and
when a dimension in the length direction from a tip adjacent to the second end surface to an end adjacent to the first end surface of the first external electrode provided on at least one of a portion of the first main surface or a portion of the second main surface, and a dimension in the length direction from a tip adjacent to the first end surface to an end adjacent to the second end surface of the second external electrode provided on at least one of a portion of the first main surface or a portion of the second main surface are each defined as e2, the dimension e2 is about 17% or more and about 48% or less with respect to the dimension in the length direction of the multilayer body.
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