US 11,942,250 B2
Winding core with electrodes and coil component
Tomoyuki Wada, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Mar. 10, 2021, as Appl. No. 17/197,981.
Claims priority of application No. 2020-043235 (JP), filed on Mar. 12, 2020.
Prior Publication US 2021/0287837 A1, Sep. 16, 2021
Int. Cl. H01F 27/29 (2006.01); H01F 17/04 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01)
CPC H01F 17/045 (2013.01) [H01F 27/2823 (2013.01); H01F 27/292 (2013.01); H01F 41/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A winding core with electrodes, comprising:
a winding core including:
a winding core portion in which a wound wire is to be arranged, and
a first flange portion and a second flange portion that are respectively provided at a first end portion and a second end portion of the winding core portion, the first end portion and the second end portion being opposite to each other in an axial direction, each of the first flange portion and the second flange portion including
a bottom surface that faces a mounting board side at a time of mounting,
a top surface opposite to the bottom surface,
an inner end surface that connects the bottom surface and the top surface and faces the winding core portion side,
an outer end surface opposite to the inner end surface, and
a first side surface and a second side surface that connect the bottom surface and the top surface, connect the inner end surface and the outer end surface, and face each other; and
a plurality of terminal electrodes provided on each of the first flange portion and the second flange portion, each of the terminal electrodes including a bottom surface electrode portion that covers the bottom surface of each of the first flange portion and the second flange portion, and an end surface electrode portion that extends from the bottom surface electrode portion to a part of the outer end surface, the end surface electrode portion including an end surface base electrode layer,
when a direction in which the first side surface and the second side surface face each other is a width direction, the plurality of terminal electrodes are provided on each of the first flange portion and the second flange portion to be arranged at an interval side by side in the width direction, and
a dimension of the end surface base electrode layer in the width direction is less than 0.1 mm at a maximum value.