MULTILAYER CERAMIC CAPACITOR AND MOUNTING BOARD THEREFOR

摘要

A multilayer ceramic capacitor includes: a ceramic body having dielectric layers laminated in a thickness direction, the dielectric layers having a greater width than a length; an active layer in which capacitance is formed, by including first and second internal electrodes alternately exposed to end surfaces of the ceramic body opposite to each other in a length direction with the dielectric layer interposed therebetween; upper cover layer; lower cover layers being thicker than the upper cover layer; and first and second external electrodes, wherein, when half of thickness of the ceramic body is denoted by A, thickness of the lower cover layer is denoted by B, half of thickness of the active layer is denoted by C, and thickness of the upper cover layer is denoted by D, 1.042≦(B+C)/A≦1.537 is satisfied.

主权项

1. A multilayer ceramic capacitor, comprising:
a ceramic body having a plurality of dielectric layers laminated in a thickness direction thereof, the plurality of dielectric layers having a greater width than a length; an active layer in which capacitance is formed, by including a plurality of first and second internal electrodes laminated in the thickness direction so as to be alternately exposed to both end surfaces of the ceramic body opposite to each other in a length direction of the ceramic body while having the dielectric layer interposed therebetween; an upper cover layer formed above the active layer; a lower cover layer formed below the active layer, the lower cover layer having a greater thickness than the upper cover layer; and first and second external electrodes covering the both end surfaces of the ceramic body, wherein, when half of an overall thickness of the ceramic body is denoted by A, a thickness of the lower cover layer is denoted by B, half of an overall thickness of the active layer is denoted by C, and a thickness of the upper cover layer is denoted by D, a ratio of deviation of a center of the active layer from a center of the ceramic body, (B+C)/A, satisfies 1.042≦(B+C)/A≦1.537.