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    ZINC OXIDE BASED VARISTOR AND FABRICATION METHOD
    2.
    发明申请
    ZINC OXIDE BASED VARISTOR AND FABRICATION METHOD 有权
    基于氧化锌的VARISTOR和制造方法

    公开(公告)号：US20150294769A1

    公开(公告)日：2015-10-15

    申请号：US14443137

    申请日：2012-12-27

    Applicant: LITTELFUSE, INC.

    Inventor： Shuying Liu

    IPC: H01C7/12 ,  H01C17/00 ,  C04B35/453

    CPC classification number: H01C7/12 ,  C04B35/453 ,  C04B35/62655 ,  C04B35/638 ,  C04B2235/3217 ,  C04B2235/3241 ,  C04B2235/3263 ,  C04B2235/3277 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/3409 ,  C04B2235/6567 ,  H01C7/108 ,  H01C7/112 ,  H01C17/00

    Abstract: A varistor may include a varistor ceramic that includes zinc oxide having a molar percent greater than 90 percent and a set of metal oxides, where the set of metal oxides includes Bi2O3 having a molar fraction between 0.2 and 2.5 percent; Co3O4 having a molar fraction between 0.2 and 1.2 percent; Mn3O4 having a molar fraction between 0.05 and 0.5 percent; Cr2O3 having a molar fraction between 0.05 and 0.5 percent; NiO having a molar fraction between 0.5 and 1.5 percent; Sb2O3 oxide having a molar fraction between 0.05 and 1.5 percent; B2O3 having a molar fraction between 0.001 to 0.03 percent; and aluminum in the form of an oxide having a molar fraction between 0.001 and 0.05 percent.

    Abstract translation: 变阻器可以包括包含摩尔百分比大于90％的氧化锌和一组金属氧化物的变阻器陶瓷，其中该组金属氧化物包括摩尔分数在0.2和2.5％之间的Bi 2 O 3; Co 3 O 4的摩尔分数为0.2〜1.2％ 摩尔分数为0.05〜0.5％的Mn3O4; 摩尔分数为0.05〜0.5％的Cr 2 O 3; 摩尔分数为0.5〜1.5％的NiO; 摩尔分数为0.05〜1.5％的Sb2O3氧化物; B2O3的摩尔分数为0.001〜0.03％ 铝和氧化物形式的铝，其摩尔分数为0.001至0.05％。

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