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muRata LQH2MCN470K02L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- mu Rata LQH2MCN470K02L
- Type
- MURATA
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- MURATA
- Electronic Component
- LQH2MCN470K02L
- Electronic Component
- 1
- Package
- 0806
- Type
- Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±10%
- Electronic Component
- 0.025g
- Inductor
- 47uH
- Electronic Component
- 1
- Electronic Component
- BM0058421526
- Current
- 120mA
- Resistor(DCR)
- 6.63Ω
- 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.
LQH2MCN470K02L 产品概述
一、主要参数与特点
LQH2MCN470K02L 为 muRata（村田）系列功率电感，标称电感值 47 μH，公差 ±10%，直流电阻（DCR）5.1 Ω，额定电流 120 mA（0.12 A），封装规格为 0806（英制，约 2.0 mm × 1.5 mm）。该型号属片式功率电感，适用于低频能量储存与滤波场合，体积小、易于表面贴装。
二、电气性能与实际影响
在额定电流下，器件的直流损耗和压降不可忽视：P_loss ≈ I^2·DCR = (0.12 A)^2·5.1 Ω ≈ 0.073 W（约73 mW）；直流压降约 V = I·DCR ≈ 0.12 A·5.1 Ω ≈ 0.61 V。由此可见，较大的 DCR 会带来明显的电压降和发热，需在电源效率与热管理上提前评估。电感的交流特性受频率和直流偏置影响，实际工作电感可能随直流电流下降（磁饱和效应），建议在目标频率与偏置电流下确认 L 值。
三、典型应用场景
- 低功率 DC-DC 降压/升压变换器中的能量储存或输出滤波；
- 电源输入滤波（配合电容降低纹波与干扰）；
- 便携设备、传感器模块、低功耗无线终端等对体积与贴片工艺有要求的场景； 注意该型号更适合低电流、对功率损耗容忍度较高的应用。
四、选型与使用建议
- 若系统对效率和压降敏感，应优先选择 DCR 更低、额定电流更高的型号。
- 在 PCB 布局上尽量靠近电源或滤波电容安装，缩短回流路径以降低 EMI。
- 推荐在目标工作电流和频率下实测电感值与损耗，确认是否发生磁饱和或过热。
- 对于开关电源，考虑加热、散热与外部温升对电感阻值和额定电流的影响，适当留有裕量。
五、装配与可靠性注意事项
- 采用标准回流焊工艺，遵循厂商回流曲线；避免过度机械应力和迅速的温度循环。
- 存储与保管遵循干燥包装建议，避免潮湿和强振动。
- 推荐在量产前做热升测试、寿命试验与震动/冲击可靠性验证，确保在实际工况下稳定。
六、替代与配套
若需要更低 DCR 或更高额定电流，可在 muRata 的同系列或其他厂商（如 TDK、Coilcraft）中查找相近电感值但不同规格的型号。选型时同时关注封装尺寸、饱和特性与频率响应以保证兼容性。
总结：LQH2MCN470K02L 适用于小型、低电流的电源滤波与能量储存场景，但其较高的 DCR 带来明显压降与发热，选型时需综合效率、热管理与实际工作电流进行评估并实测验证。若需更详细的频率响应、饱和电流或回流曲线，请参考 muRata 官方 Datasheet。
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