Dielectric composition and multilayer electronic component including the same

A multilayer electronic component comprising:

• a body including dielectric layers and internal electrodes disposed alternately with the dielectric layers;
• and
• external electrodes disposed on the body,
• wherein the dielectric layers include a dielectric composition, and
• the dielectric composition includes a BaTiO3 based main component and a first accessory component,
• the first accessory component includes dysprosium (Dy) and terbium (Tb),
• a sum (Dy+Tb) of contents of dysprosium (Dy) and terbium (Tb) is more than 1.5 mol and 2.0 mol or less based on 100 mol of Ti of the main component, and
• the contents of dysprosium (Dy) and terbium (Tb) satisfy formula 0.1≤Tb/Dy<0.15 in which Tb/Dy is a ratio of the molar content of terbium (Tb) to the molar content of dysprosium (Dy).