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MURATA村田贴片磁珠
村田磁珠的特性与应用
基本特性
村田磁珠是一种片状铁氧体磁珠,属于EMI静噪元件,也称为静噪滤波器。它的学名叫片状铁氧体磁珠,功效等效于电阻和电感串联在电路中,能够在高频通过时表现出阻性,从而发挥过滤高频的滤波器作用12。
村田磁珠的主要原料是铁氧体,通常由铁镁合金或铁镍合金制成,外表呈灰黑色。在电路中,高频信号通过铁氧体材料时会大量消耗高频信号,使得磁珠在电路中起着阻高频通低频的作用。具体来说,村田磁珠具有以下特性:
高频损耗大:在高频情况下,磁珠会消耗大量的能量,从而减少高频噪声。
导磁率高:具有很高的导磁率,使得电感的线圈绕组之间在高频高阻的情况下产生的电容最小。
阻抗特性:在低频时几乎无阻抗,但在高频时会产生较大的衰减,高频电流在其中以热量形式散发12。
应用领域
村田磁珠广泛应用于各种电子设备中,特别是在以下领域:
通讯设备:用于抑制通讯设备中的高频噪声。
数字电视和计算机:在数字电路中,由于脉冲信号含有频率很高的高次谐波,磁珠能有效滤除这些高频噪声。
电源电路:用于电源电路中滤除高频噪声,适用于直流和交流输出。
信号电缆:用于信号电缆的噪声滤除,减少信号传输中的干扰12。
命名规则和参数
村田磁珠的命名规则通常包括型号和后缀,例如BLM18AG331SN1D。主要的参数包括:
直流电阻(DC Resistance):直流电流通过磁珠时的电阻值。
额定电流(Rated Current):磁珠正常工作时的最大允许电流。
阻抗(Impedance):在特定频率下的阻抗值,通常以100MHz为标准。
阻抗-频率特性:描述阻抗值随频率变化的曲线。
电阻-频率特性和感抗-频率特性:分别描述电阻和感抗随频率变化的曲线2。
结论
综上所述,村田磁珠因其高效的高频滤波性能和广泛的应用领域,在电子设备中发挥着重要作用。
村田磁珠BLM系列现货供应:
BLM03AG100SN1D | BLM1***G100SN1D | BLM21AG121SN1D | BLM18PG300SN1D |
BLM03AG700SN1D | BLM1***G700SN1D | BLM21AG151SN1D | BLM18PG330SN1D |
BLM03AG800SN1D | BLM1***G121SN1D | BLM21AG221SN1D | BLM18PG600SN1D |
BLM03AG121SN1D | BLM1***G221SN1D | BLM21AG331SN1D | BLM18PG121SN1D |
BLM03AG241SN1D | BLM1***G601SN1D | BLM21AG471SN1D | BLM18PG181SN1D |
BLM03AG601SN1D | BLM1***G102SN1D | BLM21AG601SN1D | BLM18PG221SN1D |
BLM03AG102SN1D | BLM1***X100SN1D | BLM21AG102SN1D | BLM18PG331SN1D |
BLM03BD750SN1D | BLM1***X700SN1D | BLM21PG220SN1D | BLM18PG471SN1D |
BLM03BB121SN1D | BLM1***X121SN1D | BLM21PG300SN1D | BLM18KG260TN1p |
BLM03BD121SN1D | BLM1***X221SN1D | BLM21PG600SN1D | BLM18KG700TN1p |
BLM03BD241SN1D | BLM1***X601SN1D | BLM21PG121SN1D | BLM18KG121TN1p |
BLM03BD471SN1D | BLM1***X102SN1D | BLM21PG221SN1D | BLM18KG221SN1D |
BLM03BD601SN1D | BLM15BD750SN1D | BLM21PG331SN1D | BLM18KG331SN1D |
BLM03BB100SN1D | BLM15BB121SN1D | BLM21BD121SN1D | BLM18KG471SN1D |
BLM03BB220SN1D | BLM15BD121SN1D | BLM21BB151SN1D | BLM18KG601SN1D |
BLM03BB470SN1D | BLM15BB221SN1D | BLM21BD151SN1D | BLM18KG300TN1p |
BLM03BB750SN1D | BLM15BC121SN1D | BLM21BB201SN1D | BLM18KG101TN1p |
BLM03PG220SN1D | BLM15BC241SN1D | BLM21BB221SN1D | BLM18EG101TN1p |
BLM03PG330SN1D | BLM15BD221SN1D | BLM21BD221SN1D | BLM18EG121SN1D |
BLM03AX100SN1D | BLM15BD471SN1D | BLM21BB331SN1D | BLM18EG221SN1D |
BLM03AX800SN1D | BLM15BD601SN1D | BLM21BD331SN1D | BLM18EG221TN1p |
BLM03AX121SN1D | BLM15BD102SN1D | BLM21BD421SN1D | BLM18EG331TN1p |
BLM03AX241SN1D | BLM15BD182SN1D | BLM21BB471SN1D | BLM18EG391TN1p |
BLM03AX601SN1D | BLM15BA050SN1D | BLM21BD471SN1D | BLM18EG471SN1D |
BLM03AX102SN1D | BLM15BB050SN1D | BLM21BD601SN1D | BLM18EG601SN1D |
BLM03HG601SN1D | BLM15BA100SN1D | BLM21BD751SN1D | BLM18SG260TN1p |
BLM03HG102SN1D | BLM15BB100SN1D | BLM21BD102SN1D | BLM18SG700TN1p |
BLM15BA220SN1D | BLM21BD152SN1D | BLM18SG121TN1p | |
BLM15BB220SN1D | BLM21BD182SN1D | BLM18SG221TN1p | |
BLM15BA330SN1D | BLM21BD222TN1p | BLM18SG331TN1p | |
BLM15BA470SN1D | BLM21BD222SN1D | BLM18AG121SN1D | |
BLM15BB470SN1D | BLM21BD272SN1D | BLM18AG151SN1D | |
BLM15BA750SN1D | BLM21BB050SN1D | BLM18AG221SN1D | |
BLM15BB750SN1D | BLM21BB600SN1D | BLM18AG331SN1D | |
BLM15PG100SN1D | BLM21BB750SN1D | BLM18AG471SN1D | |
BLM15PD300SN1D | BLM21BB121SN1D | BLM18AG601SN1D | |
BLM15PD600SN1D | BLM31PG330SN1L | BLM18AG102SN1D | |
BLM15PD800SN1D | BLM31PG500SN1L | BLM18HG471SN1D | |
BLM15PD121SN1D | BLM31PG121SN1L | BLM18HG601SN1D | |
BLM15HG601SN1D | BLM31PG391SN1L | BLM18HG102SN1D | |
BLM15HG102SN1D | BLM31PG601SN1L | BLM18HB121SN1D | |
BLM15HB121SN1D | BLM41PG600SN1L | BLM18HB221SN1D | |
BLM15HB221SN1D | BLM41PG750SN1L | BLM18HB331SN1D | |
BLM15HD601SN1D | BLM41PG181SN1L | BLM18HD471SN1D | |
BLM15HD102SN1D | BLM41PG471SN1L | BLM18HD601SN1D | |
BLM15HD182SN1D | BLM41PG102SN1L | BLM18HD102SN1D | |
BLM15EG121SN1D | BLM18HE601SN1D | ||
BLM15EG221SN1D | BLM18HE102SN1D | ||
BLM18HE152SN1D | |||
BLM18HK331SN1D | |||
BLM18HK471SN1D | |||
BLM18HK601SN1D | |||
BLM18HK102SN1D | |||
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