WMSIC Electronic Components

muRata BLM15GG221SN1D

ModelBLM15GG221SN1D
Package0402
BrandmuRata
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
mu Rata BLM15GG221SN1D
Type
MURATA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MURATA
Electronic Component
BLM15GG221SN1D
Electronic Component
1
Package
0402
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.015g
Electronic Component
1
Channel Count
1
Electronic Component
BM0058412893
Current
300mA
@Frequency
220Ω@100MHz
Resistor(DCR)
700mΩ
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BLM15GG221SN1D 产品概述

一、产品概况

BLM15GG221SN1D 是村田(muRata)生产的一款表面贴装磁珠(ferrite bead),封装尺寸为 0402,单通道设计,用于电流回路和信号线的高频电磁干扰(EMI)抑制。该型号在 100MHz 时标称阻抗为 220Ω,直流电阻(DCR)约为 700mΩ,额定直流电流 300mA,阻值公差 ±25%。体积小、插入损耗高,适合对 EMI 抑制要求较高且空间受限的便携式和消费类电子产品。

二、主要电气参数

  • 品牌:muRata(村田)
  • 型号:BLM15GG221SN1D
  • 封装:0402(尺寸小,适合高密度贴片)
  • 阻抗:220Ω @ 100MHz(标称)
  • 直流电阻(DCR):700 mΩ(典型/标称)
  • 额定电流:300 mA(连续通过电流上限)
  • 通道数:1(单端/单线用)
  • 阻值公差:±25%

三、特性与优势

  • 高频抑制能力强:100MHz 附近阻抗较高,能有效衰减高频干扰,改善信号完整性与系统 EMC 性能。
  • 低直流压降:700mΩ 的 DCR 在 300mA 电流下造成的压降较小,适合低功耗电路的供电线滤波。
  • 小型化封装:0402 规格便于在空间受限的 PCB 上布局,适合移动设备、无线模块等应用。
  • 可批量生产与自动贴装:符合常规 SMT 工艺,便于生产线自动化组装。

四、典型应用场景

  • 手机、平板、可穿戴设备等便携式电子产品的电源与信号线 EMI 抑制。
  • Wi‑Fi/蓝牙、射频模块前后端滤波与干扰隔离。
  • 摄像头、传感器等高频敏感模块的噪声抑制。
  • USB、I2C、SPI 等低速/中速数据线的共模/差模噪声控制(视具体电路而定)。

五、封装与焊接注意事项

  • 适用于标准无铅回流焊工艺,但应参考厂商推荐的回流温度曲线以避免过热导致性能退化或机械损伤。
  • 0402 体积小,贴装时需注意基板焊盘尺寸与焊膏量匹配,避免浮贴或焊球过多导致器件受力。
  • 焊接后建议进行必要的清洗以去除助焊剂残留,避免长期潮气或化学物质引发性能变化。

六、选型与替代建议

在选型时应综合考虑阻抗频谱、DC 电流需求、允许压降及工作频段。若系统工作频段高于 100MHz,可参考厂商提供的频率响应曲线选择在目标频段阻抗更高的型号;若电流需求大于 300mA,则需选用额定电流更高的磁珠或使用并联/更大封装方案。

七、储存与可靠性

  • 建议原包装密封存放,避免受潮、受污染及机械冲击。
  • 在长期储存或频繁焊接的产品中,应关注温度循环与震动对焊点和磁珠本体的可靠性影响,设计时预留足够的力学强度与焊盘支撑。

总结:BLM15GG221SN1D 以其 0402 小封装、220Ω@100MHz 的高频阻抗和较低的 DCR,适合对 EMI 抑制有较高要求且空间受限的低功耗电子产品。选型时应结合实际工作频段与电流需求,参考村田提供的详细频率响应与可靠性资料以获得最佳性能。

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