Title:
FERRITE COMPOSITION AND ELECTRONIC COMPONENT
Document Type and Number:
Japanese Patent JP2018052793
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ferrite composition which is used in a small-sized DC-DC converter, has such frequency characteristics as to operate as an inductor in a high frequency region and DC superimposition characteristics that hardly vary even when applied to large current, and has good initial permeability, specific resistance, frequency characteristics and temperature characteristics, and to provide an electronic component using the ferrite composition.SOLUTION: A ferrite composition contains, as main components, 18-30 mol% of iron oxide in terms of FeO, 4-14 mol% of iron oxide in terms of CuO, 0-6 mol% of zinc oxide in terms of ZnO, and the balance being nickel oxide, contains, with respect to 100 pts.wt. of the main components, as accessory components, 0.30-1.83 pts.wt. of a silicon compound in terms of SiO, 2.00-10.00 pts.wt. of a cobalt compound in terms of CoO, and 1.00-3.00 pts.wt. of a bismuth compound in terms of BiO, where a value obtained by dividing the content of the cobalt compound in terms of CoOby the content of the silicon compound in terms of SiOis 5.5-30.0.SELECTED DRAWING: None
Inventors:
SHIBAYAMA TAKESHI
MURAI ASUKA
TAKAHASHI YUKIO
SUZUKI TAKASHI
TANOUE HIROYUKI
TAKAHASHI MASAKI
MURAI ASUKA
TAKAHASHI YUKIO
SUZUKI TAKASHI
TANOUE HIROYUKI
TAKAHASHI MASAKI
Application Number:
JP2016194621A
Publication Date:
April 05, 2018
Filing Date:
September 30, 2016
Export Citation:
Assignee:
TDK CORP
International Classes:
C04B35/30; H01F1/34
Domestic Patent References:
| JPH0393667A | 1991-04-18 | |||
| JPH0963826A | 1997-03-07 | |||
| JPH0851011A | 1996-02-20 | |||
| JPH0851012A | 1996-02-20 | |||
| JP2002134312A | 2002-05-10 | |||
| JP2006206347A | 2006-08-10 | |||
| JP2000203846A | 2000-07-25 |
Attorney, Agent or Firm:
Maeda/Suzuki International Patent Corporation