Murata Manufacturing Co., Ltd.

Yuko Nomiya

Atsushi Yamamoto

Akihiro Nakamura

Tomoyuki Ankyu

Wataru Kanami

A ceramic electronic component includes a ferrite material magnetic body part and a Cu conductive part, the ferrite containing 20 to 48% trivalent Fe in terms of FeOand divalent Ni. The ferrite can contain Mn so that it is less than 50% of the total of Fe and Mn in terms of MnOand FeO. The magnetic and conductive parts are co-fired at a pressure not exceeding the equilibrium oxygen partial pressure of Cu&#x2014;CuO thereby ensuring insulating performance and favorable electrical characteristics.

Ceramic electronic component and method for producing ceramic electronic component

This disclosure provides a ferrite ceramic composition, a ceramic electronic component including the ceramic composition, and a process of producing a ceramic electronic component including the ferrite ceramic composition, of which the insulation performance can be secured even when fired simultaneously with a metal wire material containing Cu as the main component, and which can have good electric properties. The ferrite ceramic composition includes an Ni&#x2014;Mn&#x2014;Zn-based ferrite having a molar content of CuO of 5 mol % or less and in which, when the molar content (x) of FeOand the molar content (y) of MnOare expressed by a coordinate point (x,y), the coordinate point (x,y) is located in an area bounded by coordinate points A (25,1), B (47,1), C (47,7.5), D (45,7.5), E (45,10), F (35,10), G (35,7.5) and H (25,7.5).

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Nagaokakyo, Japan

Yuko Nomiya