公开(公告)号：US20250059094A1

公开(公告)日：2025-02-20

申请号：US18762275

申请日：2024-07-02

Applicant: TDK CORPORATION

Inventor： Toshihiro IGUCHI ,  Kenichiro Masuda ,  Tetsuya Yoshiyama ,  Toshio Asahi

IPC: C04B35/468 ,  H01G4/12

Abstract: A dielectric composition includes main phase grains and segregation grains. The segregation grains at least partly include RE-Mg—Ti—O segregation grains including “RE”, Mg, Ti, and O. “RE” includes a rare earth element. “RE”, Mg, and Ti in the RE-Mg—Ti—O segregation grains constitute 70 parts by mol or more in total out of 100 parts by mol of a total of metal elements in the RE-Mg—Ti—O segregation grains. A ratio of Mg to a total of “RE” and Mg in the RE-Mg—Ti—O segregation grains ranges from 0.1 to 0.3.