Multilayer ceramic electronic device

A multilayer ceramic electronic device comprising:

• an element body having a laminated structure including an insulating layer interposed between a first internal electrode layer and a second internal electrode layer;
• and
• two external electrodes formed on outer surfaces of the element body,
• wherein at least one of the first internal electrode layer and the second internal electrode layer includes a floating electrode that is not connected to either of the two external electrodes,
• the insulating layer includes a main component including a perovskite-type compound and also includes a subcomponent,
• the perovskite-type compound includes at least Ca as an A-site element and at least Zr as a B-site element,
• the subcomponent includes at least one selected from the group consisting of V, Nb, Ta, and W as a first subcomponent element, and
• a total content of the first subcomponent element is 0.005 parts by mol or more and 0.80 parts by mol or less per 100 parts by mol of B-site elements.