Coil electronic component
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsIl Jin Park, Se Hyung Lee, Byeong Cheol Moon
Life of this patent
Estimating the term…
Abstract
A coil electronic component includes a body having a coil part disposed therein and external electrodes connected to the coil part. The body includes a plurality of magnetic particles. In one example, a particle size distribution D50 of the magnetic particles in the body is 1 μm or less. In other examples, a particle size distribution D99 of the magnetic particles in the body is 1 μm or less; a particle size distribution ratio D99/D50 of the magnetic particles in the body is 1.5 or less; and/or a variation coefficient of the particle size of the magnetic particles in the body is 20% or less.
Claims12
A coil electronic component comprising:
- a body having a coil part disposed therein;
- and
- external electrodes connected to the coil part,
- wherein the coil part includes a plurality of windings, and a space between adjacent windings of the coil part is free of the body,
- wherein the body includes a plurality of magnetic particles including an amorphous magnetic metal material and having a particle size distribution D99 that is 1 μm or less, and
- wherein the amorphous magnetic metal material includes 88 to 92 mol % of iron (Fe), 6 to 9 mol % of boron (B), and 1 to 2 mol % of phosphorus (P).
A coil electronic component comprising:
- a body having a coil part embedded therein,
- wherein the body includes magnetic particles including an amorphous magnetic metal material and having a particle size of 1 μm or less, and a variation coefficient of the particle size of the magnetic particles in the body is 20% or less,
- wherein a particle size distribution D99 of the magnetic particles in the body is 1 μm or less, and
- wherein the amorphous magnetic metal material includes 88 to 92 mol % of iron (Fe), 6 to 9 mol % of boron (B), and 1 to 2 mol % of phosphorus (P).
A coil electronic component comprising:
- a coil part having a hole penetrating through a center thereof;
- and
- a body enclosing the coil part and extending through the hole at the center of the coil part,
- wherein the body includes magnetic particles dispersed in a thermosetting resin, the magnetic particles include an amorphous magnetic metal material, and a particle size distribution ratio D99/D50 of the magnetic particles included in the body is 1.5 or less,
- wherein a particle size distribution D99 of the magnetic particles in the body is 1 μm or less, and
- wherein the amorphous magnetic metal material includes 88 to 92 mol % of iron (Fe), 6 to 9 mol % of boron (B), and 1 to 2 mol % of phosphorus (P).
Dependencies are inferred from the claim text.