An electronic component includes a ceramic body and a sintered metal layer disposed on the ceramic body. The sintered metal layer includes a first region including a plurality of first crystal grains including a first metal, a second region in contact with the first region and including a plurality of second crystal grains including a second metal different from the first metal, and a third region in contact with the second region and including glass. The sintered metal layer has an existence ratio of the first region and the second region that is larger than 1, the existence ratio being expressed by an area ratio of the first region to the second region.

An electronic component includes a ceramic body and a sintered metal layer disposed on the ceramic body. The sintered metal layer includes a first region including a plurality of first crystal grains including a first metal, a second region in contact with the first region and including a plurality of second crystal grains including a second metal different from the first metal, and a third region in contact with the second region and including glass. The sintered metal layer has an existence ratio of the first region and the second region that is larger than 1, the existence ratio being expressed by an area ratio of the first region to the second region.

A multilayer varistor of the present disclosure includes a sintered body, a first internal electrode, a second internal electrode, a first external electrode, a second external electrode, and a high-resistance layer. The first internal electrode and the second internal electrode are disposed in the sintered body. The first external electrode is disposed on a surface of the sintered body and is electrically connected to the first internal electrode. The second external electrode is disposed on the surface of the sintered body and is electrically connected to the second internal electrode. The high-resistance layer covers at least part of the surface of the sintered body, and the high-resistance layer has a surface having a plurality of cracks.

A multilayer varistor of the present disclosure includes a sintered body, a first internal electrode, a second internal electrode, a first external electrode, a second external electrode, and a high-resistance layer. The first internal electrode and the second internal electrode are disposed in the sintered body. The first external electrode is disposed on a surface of the sintered body and is electrically connected to the first internal electrode. The second external electrode is disposed on the surface of the sintered body and is electrically connected to the second internal electrode. The high-resistance layer covers at least part of the surface of the sintered body, and the high-resistance layer has a surface having a plurality of cracks.

A chip varistor includes an element body including a first and a second side surface, and a plurality of internal electrodes opposing each other in the element body. The plurality of internal electrodes include a first, a second, a third, a fourth, and a fifth internal electrode. The first internal electrode is exposed to the first side surface. The second internal electrode is exposed to the second side surface. The third internal electrode is separated from the first and the second internal electrode. The fourth internal electrode is disposed to form a plurality of varistors connected in series between the first and the third internal electrode. The fifth internal electrode is disposed to form a plurality of varistors connected in series between the second and the third internal electrode. Among the plurality of internal electrodes, the internal electrodes opposing each other include ends opposing each other and having different widths.

A chip varistor includes an element body including a first and a second side surface, and a plurality of internal electrodes opposing each other in the element body. The plurality of internal electrodes include a first, a second, a third, a fourth, and a fifth internal electrode. The first internal electrode is exposed to the first side surface. The second internal electrode is exposed to the second side surface. The third internal electrode is separated from the first and the second internal electrode. The fourth internal electrode is disposed to form a plurality of varistors connected in series between the first and the third internal electrode. The fifth internal electrode is disposed to form a plurality of varistors connected in series between the second and the third internal electrode. Among the plurality of internal electrodes, the internal electrodes opposing each other include ends opposing each other and having different widths.

A multilayer varistor includes a sintered body, an internal electrode disposed in the sintered body, a high-resistance layer covering at least part of the sintered body, and an external electrode covering part of the high-resistance layer, the external electrode being electrically connected to the internal electrode. An arithmetic mean roughness of a surface of the high-resistance layer is greater than or equal to 0.06 m.

A ceramic component having improved insulation properties is provided. The ceramic component includes a ceramic body, an internal electrode provided inside the ceramic body, an insulation layer covering a surface of the ceramic body, and an external electrode covering a part of the insulation layer and electrically connected to the internal electrode. The insulation layer includes a first layer 13X in contact with the ceramic body, and a second layer provided on the first layer on the side opposite to the ceramic body.

A ceramic component having improved insulation properties is provided. The ceramic component includes a ceramic body, an internal electrode provided inside the ceramic body, an insulation layer covering a surface of the ceramic body, and an external electrode covering a part of the insulation layer and electrically connected to the internal electrode. The insulation layer includes a first layer 13X in contact with the ceramic body, and a second layer provided on the first layer on the side opposite to the ceramic body.

A ceramic component is excellent in leakage current suppression property, plating flow suppression property, and moisture resistance, and has improved electrode fixing strength. The ceramic component includes a ceramic body, an internal electrode disposed inside the ceramic body, an insulation layer covering a surface of the ceramic body, and an external electrode covering a part of a surface of the insulation layer and electrically connected to the internal electrode. The insulation layer includes a flat portion and a plurality of projections.