PROBLEM TO BE SOLVED: To obtain an Mn-Zn-based ferrite having high μi on the lower temp. side (≥20°C), maintaining stable magnetic characteristics against a change of the environmental temp. (-10 to +70°C) and suitable for a transformer for communications. ;SOLUTION: The Mn-Zn-based, ferrite consists of 51-54 mol.% Fe2O3, 20-25 mol.% ZnO and the balance manganese oxide, further contains 0.002-0.04 wt.% Cab, 0.002-0.015 wt.% Sin, and 0.02-0.12 wt.% CoO as subsidiary components and has an initial permeability of ≥10,000 within the temp. range of -20 to 100°C.;COPYRIGHT: (C)1999,JPO
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机译：解决的问题：在较低的温度下获得具有高μi的Mn-Zn基铁氧体。侧面（≥20°C），保持稳定的磁特性，以抵抗环境温度的变化。 （-10至+ 70°C），适用于通讯变压器。 ;解决方案：锰锌基铁氧体由51-54摩尔％的Fe 2 O 3 ，20-25摩尔％的ZnO和余量的氧化锰组成进一步包含0.002-0.04重量％的Cab，0.002-0.015重量％的Sin和0.02-0.12重量％的CoO作为辅助组分，并且在温度范围内具有≥10,000的初始磁导率。 -20至100°C范围;版权：（C）1999，JPO
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