IP Library › Granted Patent US 12,725,730
Granted Patent B2
US 12,725,730 · App. 18/191,779 · Granted Sep 1, 2026

Electronic component

Inventor: Maasa Nakano (Nagaokakyo, JP)
Assignee: Murata Manufacturing Co., Ltd.
H01F27/292H01F1/14708H01F27/2804H01F27/323H01F2027/2809
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Quick Facts
Patent No.
US 12,725,730
App. No.
18/191,779
Granted
Sep 1, 2026
Kind
B2
Abstract

An electronic component includes an insulator portion in which insulating layers are laminated; inner conductors each having a strip shape and embedded in the insulator portion; and first and second external electrodes which face an outer surface of the insulator portion and are electrically connected to the inner conductors. Also, from 3 to 5 of the inner conductors are provided and the inner conductors being laminated with the insulating layers interposed therebetween, a total sectional area of the inner conductors is from 0.1 mm 2 to 0.5 mm 2 , and when a thickness and a width of the inner conductor are designated as t1 and w4, respectively, a distance between the inner conductors is designated as t2, t1/w4 is designated as x, and t2/t1 is designated as y. When the number of the inner conductors is 3, (x,y) is a region surrounded by A(0.051,1.0), B(0.051,5.9), C(0.2,5.9), D(0.2,4.4), and E(0.1,1.4).

Claims (84)

1 . An electronic component comprising:

an insulator portion in which a plurality of insulating layers are laminated;

a plurality of inner conductors each having a strip shape and embedded in the insulator portion; and

a first external electrode and a second external electrode which face an outer surface of the insulator portion and are electrically connected to the inner conductors,

a number of the inner conductors being from 3 to 5 and the inner conductors being laminated with the insulating layers interposed therebetween,

a total sectional area of the plurality of inner conductors being from 0.1 mm 2 to 0.5 mm 2 , and

when a thickness and a width of the inner conductor are designated as t1 and w4, respectively, a distance between the inner conductors is designated as t2, t1/w4 is designated as x, and t2/t1 is designated as y,

(i) when the number of the inner conductors is 3,

(x,y) being a region surrounded by A(0.051, 1.0), B(0.051, 5.9), C(0.2,5.9), D(0.2,4.4), and E(0.1,1.4),

(ii) when the number of the inner conductors is 4,

(x,y) being a region surrounded by F(0.038, 0.26), G(0.038, 5.2), H(0.2,5.2), I(0.2,4.9), and J(0.1,1.9), and

(iii) when the number of the inner conductors is 5,

(x,y) being a region surrounded by K(0.031, 0.53), L(0.031, 4.9), M(0.15,4.9), and N(0.15,4.1).

2 . The electronic component according to claim 1 , wherein

each of the inner conductors has a line portion and a first extended portion and a second extended portion located at both ends of the line portion,

a ratio of a width of each of the first extended portion and the second extended portion to a width of the insulator portion is from 0.4 to 1.0.

3 . The electronic component according to claim 2 , wherein

a height of the insulator portion is from 1.8 mm to 2.2 mm, and a width of the insulator portion is from 2.3 mm to 2.7 mm.

4 . The electronic component according to claim 3 , wherein

the insulating layer includes a magnetic layer,

the magnetic layer containing

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Zn being from 2 mol % to 35 mol % in terms of ZnO,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Ni being from 10 mol % to 45 mol % in terms of NiO.

5 . The electronic component according to claim 4 , wherein

the insulating layer includes a non-magnetic layer.

6 . The electronic component according to claim 3 , wherein

the insulating layer includes a non-magnetic layer.

7 . The electronic component according to claim 2 , wherein

the insulating layer includes a magnetic layer,

the magnetic layer containing

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Zn being from 2 mol % to 35 mol % in terms of ZnO,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Ni being from 10 mol % to 45 mol % in terms of NiO.

8 . The electronic component according to claim 7 , wherein

the insulating layer includes a non-magnetic layer.

9 . The electronic component according to claim 2 , wherein

the insulating layer includes a non-magnetic layer.

10 . The electronic component according to claim 9 , wherein

the non-magnetic layer contains

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Zn being from 37.5 mol % to 54 mol % in terms of ZnO.

11 . The electronic component according to claim 1 , wherein

a height of the insulator portion is from 1.8 mm to 2.2 mm, and a width of the insulator portion is from 2.3 mm to 2.7 mm.

12 . The electronic component according to claim 11 , wherein

the insulating layer includes a magnetic layer,

the magnetic layer containing

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Zn being from 2 mol % to 35 mol % in terms of ZnO,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Ni being from 10 mol % to 45 mol % in terms of NiO.

13 . The electronic component according to claim 12 , wherein

the insulating layer includes a non-magnetic layer.

14 . The electronic component according to claim 11 , wherein

the insulating layer includes a non-magnetic layer.

15 . The electronic component according to claim 14 , wherein

the non-magnetic layer contains

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Zn being from 37.5 mol % to 54 mol % in terms of ZnO.

16 . The electronic component according to claim 1 , wherein

the insulating layer includes a magnetic layer,

the magnetic layer containing

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Zn being from 2 mol % to 35 mol % in terms of ZnO,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Ni being from 10 mol % to 45 mol % in terms of NiO.

17 . The electronic component according to claim 16 , wherein

the insulating layer includes a non-magnetic layer.

18 . The electronic component according to claim 17 , wherein

the non-magnetic layer contains

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Zn being from 37.5 mol % to 54 mol % in terms of ZnO.

19 . The electronic component according to claim 1 , wherein

the insulating layer includes a non-magnetic layer.

20 . The electronic component according to claim 19 , wherein

the non-magnetic layer contains

Fe being from 40 mol % to 49.5 mol % in terms of Fe 2 O 3 ,

Cu being from 6 mol % to 13 mol % in terms of CuO, and

Zn being from 37.5 mol % to 54 mol % in terms of ZnO.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2023
From: NAKANO, MAASA
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 063137/0932 →
Priority Claims (1)
JP 2022-059885 · Mar 31, 2022 · national
Continuity (1)
Related Publication 20230317361A1 · Oct 5, 2023
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