Multilayer ceramic capacitor and board having the same mounted thereon

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 configured to form capacitance by 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 of the ceramic body and electrically connected to the second internal electrodes,
• wherein when a thickness of the lower cover layer is defined as tc, a length of the ceramic body is defined as L, and a length of the first and second internal electrodes is defined as L2, 0.074≦L2/(tc×(L−L2))≦2.410 is satisfied.

A board having a multilayer ceramic capacitor mounted thereon, the board comprising:

• a printed circuit board having first and second electrode pads disposed thereon;
• and
• a multilayer ceramic capacitor mounted on the printed circuit board,
• wherein the multilayer ceramic capacitor includes:
• 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 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 of the ceramic body and electrically connected to the second internal electrodes,
• when a length of the ceramic body is defined as L and a length of the first and second external electrodes in a length direction of the ceramic body is defined as L1, 0.2≦L1/L≦0.96 is satisfied.

A multilayer ceramic capacitor, comprising:

• a ceramic body containing a dielectric within which is located a first plurality of internal electrodes and a second plurality of internal electrodes, the first and second plurality of electrodes interleaved with facing each other so as to form a capacitance;
• a first external electrode disposed on the one side surface of the ceramic body and electrically connected to the first plurality of internal electrodes, and a second external electrode disposed on a second side surface of the ceramic body and electrically connected to the second plurality of internal electrodes,
• in which
• 0.2≦L1/L≦0.96,
• wherein L is length in a length direction of the ceramic body, and L1 is a length of the first and second external electrodes in the length direction of the ceramic body.