Multilayer ceramic capacitor and board having the same mounted thereon

摘要

A multilayer ceramic capacitor may include: a ceramic body including dielectric layers and having first and second main surfaces opposing each other, first and second side surfaces opposing each other, and first and second end surfaces opposing each other; an active layer configured to form capacitance by including first and second internal electrodes facing each other with one dielectric layer therebetween and alternately exposed to the first or second side surface; upper and lower cover layers disposed on and below the active layer; and a first external electrode disposed on the first side surface and a second external electrode disposed on the second side surface. Thickness T and width W of the ceramic body satisfy 0.75W≦T≦1.25W, gap G between the first and second external electrodes satisfies 30 μm≦G≦0.9W, and an average number of dielectric grains in a single dielectric layer in a thickness direction thereof is 2 or greater.

主权项

1. A multilayer ceramic capacitor, comprising:
a ceramic body including dielectric layers and having first and second main surfaces opposing each other, first and second side surfaces opposing each other, and first and second end surfaces opposing each other; an active layer including a plurality of first and second internal electrodes disposed to face each other with at least one of the dielectric layers interposed therebetween and alternately exposed to the first or second side surface; upper and lower cover layers disposed on and below the active layer, respectively; and a first external electrode disposed on the first side surface of the ceramic body and electrically connected to the first internal electrodes and a second external electrode disposed on the second side surface and electrically connected to the second internal electrodes, wherein when a thickness of the ceramic body is defined as T and a width thereof is defined as W, 0.75W≦T≦1.25W is satisfied, when a gap between the first and second external electrodes is defined as G, 30 μm≦G≦0.9W is satisfied, and an average number of dielectric grains in a single dielectric layer in a thickness direction thereof is 2 or greater.