| 摘要 |
A ferrite which has a high initial permeability, excellent anti-stress properties and excellent temperature characteristic, obviates the use of lead, and is inexpensive, the ferrite being capable of materialize the narrow tolerance and high reliability of a resin mold type inductor without causing environmental pollution, the ferrite having a main component containing at least iron oxide and nickel oxide, an additive containing at least one of bismuth oxide, vanadium oxide, phosphorus oxide and boron oxide, a first auxiliary component containing silicon oxide and a second auxiliary component containing at least one of magnesium oxide, calcium oxide, barium oxide and strontium oxide, the content of the additive being 0.5 to 15 wt % based on the main component, the content of each auxiliary component being 0.1 to 10.0 wt % based on the main component, and a resin mold type inductor for which the above ferrite is applied.
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