WMSIC Electronic Components

cjiang FNR6045S470MT

ModelFNR6045S470MT
PackageSMD,6x6mm
Brandcjiang
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR6045S470MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6045S470MT
Electronic Component
1
Package
SMD,6x6mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.834g
Inductor
47uH
Electronic Component
1
Electronic Component
BM0257252723
Current
1.3A
Resistor(DCR)
260mΩ
Electronic Component
Electronic Component
Electronic Component
1500

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

FNR6045S470MT 产品概述

一、主要参数与型号标示

FNR6045S470MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,封装为 SMD,外形尺寸 6×6mm。关键参数:标称电感值 47µH(公差 ±20%)、额定电流 1.3A、饱和电流 Isat 1.5A、直流电阻(DCR)约 260mΩ。该型号适用于对体积、抑扰能力和电流承载有中等要求的电源滤波与储能场合。

二、产品特性与优点

  • 磁胶屏蔽结构:有效抑制漏磁与电磁干扰(EMI),便于与敏感信号线或高密度器件并置。
  • 体积小、SMD 贴装:6×6mm 封装适合高密度 PCB 布局与自动化贴装工艺。
  • 中等功流能力:1.3A 的额定电流可满足多数小功率 DC-DC 输出、输入滤波与 LED 驱动器场合。
  • 相对较高的 DCR(260mΩ):在选型时需考虑功耗与热耗散影响。

三、典型应用场景

  • 降压/升压 DC-DC 转换器的能量储存元件(中小功率)
  • 电源输入/输出滤波,抑制纹波与高频噪声
  • LED 驱动器与便携式设备的电源管理模块
  • 模块化电源、充电器及车载电子(需注意温度与电流裕量)

四、设计与选型建议

  • 电流裕量:长期工作建议在额定电流 1.3A 以下,最好采用 70–80% 额定值(约 0.9–1.0A)以降低发热与防止接近饱和。接近 Isat(1.5A)时电感值会显著下降,应避免长期在该范围运行。
  • 功耗与温升:在 1.3A 时约有 P = I^2·DCR ≈ 0.44W 的损耗,需评估 PCB 散热路径与邻近器件热敏感度。
  • 电压降:直流压降约为 V = I·DCR ≈ 0.34V(1.3A),在某些低压系统中需计入总压降预算。
  • 谐振与电容配合:使用该电感构成的 LC 滤波器对电容 ESR 与寄生电感敏感,建议在仿真或样片测量下确认谐振频率与抑制效果。
  • 焊接与布局:遵循厂商推荐焊盘尺寸与回流曲线,避免强力机械应力;靠近电源管脚放置以减小环路面积,旁路电容尽量靠近负载或转换器 IC。

五、测试与可靠性注意

  • 在实际电路中测量直流电阻、交流阻抗与电感随直流偏置的变化,以评估工作点性能。
  • 进行温升测试和长期老化测试,尤其在高环境温度或连续高电流条件下。
  • 对 EMI 有严格要求的系统,应配合屏蔽盖、滤波器和合理布线进一步优化。

总结:FNR6045S470MT 以小体积、屏蔽性能和中等电流能力为特点,适合多数中小功率电源滤波与储能场景。选型时应重视 DCR 引起的功耗与压降,并为电流和温升留有足够裕量以保证长期可靠性。

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