Invention Grant
- Patent Title: Coil component
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Application No.: US16877898Application Date: 2020-05-19
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Publication No.: US11705265B2Publication Date: 2023-07-18
- Inventor: Miyuki Asai , Takahiro Kawahara , Masazumi Arata , Hitoshi Ohkubo
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 19095128 2019.05.21
- Main IPC: H01F5/06
- IPC: H01F5/06 ; H01F27/255

Abstract:
In a coil component, a second magnetic portion disposed in the vicinity of a coil is designed to have a higher proportion of Fe than a metal magnetic powder-containing resin constituting a first magnetic portion. Therefore, a magnetic flux of the coil flows smoothly. Although the second magnetic portion has a relatively lower withstand voltage than the first magnetic portion, since the second magnetic portion is surrounded by the first magnetic portion, it is not exposed on an outer surface of a magnetic body. For this reason, a situation in which the coil and external terminal electrodes are short-circuited with the second magnetic portion therebetween is effectively curbed, and short-circuiting between the coil and the external terminal electrodes can be curbed.
Public/Granted literature
- US20200373061A1 COIL COMPONENT Public/Granted day:2020-11-26
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