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muRata BLM15EX471SN1D
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- mu Rata BLM15EX471SN1D
- 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
- BLM15EX471SN1D
- Electronic Component
- 1
- Package
- 1.0*0.5mm
- Electronic Component
- Ferrite Bead
- Electronic Component
- ±25%
- Electronic Component
- 0.015g
- Electronic Component
- 1
- Channel Count
- 1
- Electronic Component
- BM0258853095
- Operating Temperature
- 55℃~+125℃
- Current
- 950mA
- @Frequency
- 470Ω@100MHz
- Resistor(DCR)
- 280mΩ
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BLM15EX471SN1D 产品概述
一、产品简介
BLM15EX471SN1D 是村田（muRata）系列多层磁珠（ferrite bead），封装规格为 0402（1.0 × 0.5 mm），用于高频电磁干扰（EMI）抑制与电源/信号线噪声滤除。该型号在 100 MHz 时标称阻抗 470Ω，适用于空间受限的移动设备、消费电子和工业控制等场合。
二、主要参数
- 阻抗：470 Ω @ 100 MHz（公差 ±25%）
- 直流电阻（DCR）：0.28 Ω（280 mΩ）
- 额定电流：950 mA（连续）
- 通道数：1（单端磁珠）
- 工作温度范围：-55 ℃ ~ +125 ℃
- 封装尺寸：0402（1.0 × 0.5 mm）
- 品牌：muRata（村田）
三、主要特点与优势
- 高频阻抗高：在 100 MHz 附近阻抗值高，能有效衰减射频噪声与开关干扰，改善 EMI 性能。
- 低直流电阻：DCR 仅 280 mΩ，保证对直流供电和低频信号的影响最小，适合需较大电流通过的小封装场合。
- 小体积高密度：0402 小封装便于在高密度 PCB 上布局，适合移动终端、蓝牙/Wi‑Fi 模块等空间受限设计。
- 宽温度范围：-55 ℃ 到 +125 ℃，可靠性高，可满足长寿命和工业级应用要求。
四、典型应用场景
- 移动电话、智能终端的射频前端和电源供给线路的 EMI 抑制；
- WLAN、蓝牙、GPS 模块的信号线去耦与干扰滤除；
- 电源输入 / 输出线、LDO 前端的噪声抑制；
- 工业控制、汽车电子（在符合温度和可靠性要求下）中的高频噪声抑制。
五、布局与装配建议
- 建议将磁珠靠近噪声源或器件的电源脚布置，以提高抑制效果；信号线与电源线均可使用，但需注意阻抗匹配与信号完整性。
- 由于为单端磁珠，方向性不敏感；焊盘设计应兼顾机械强度与焊接可重复性，避免因过大应力导致裂纹。
- 推荐遵循厂商的回流焊曲线与湿存储处理建议，避免长时间潮湿环境导致焊接问题。
六、替代与选型提示
- 若需更高电流容量或更低 DCR，可选择体积稍大的封装（如 0603/0805）或低阻版本；若目标频段不同，可选阻抗在其他频率点优化的型号。
- 选型时同时参考频率响应曲线与阻抗公差（±25%），在关键射频带宽上验证实际滤波效果。
本产品以小尺寸、高阻抗与低 DCR 的组合，在受限空间内提供良好 EMI 抑制，是常见的滤波与去耦元件选择。购买与使用前建议查阅村田官方规格书以获取完整的频率特性曲线与可靠性数据。
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