WMSIC Electronic Components

cjiang FNR3015S4R7MT

ModelFNR3015S4R7MT
PackageSMD,3x3mm
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR3015S4R7MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR3015S4R7MT
Electronic Component
1
Package
SMD,3x3mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.075g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0231111360
Current
1.3A
Resistor(DCR)
163mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

FNR3015S4R7MT 产品概述

一、产品简介

FNR3015S4R7MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,封装为 SMD 贴片,尺寸为 3×3mm。标称电感值为 4.7µH,公差 ±20%,面向中小功率开关电源、升降压转换器和电源滤波等场景,兼顾体积、导流能力与抑制电磁干扰的需求。

二、主要电气参数

  • 电感值:4.7µH ±20%
  • 额定电流(Ir):1.3A(长期允许通过电流,建议在此值下使用以保证温升与可靠性)
  • 饱和电流(Isat):1.4A(在此电流下电感将出现明显电感下降)
  • 直流电阻(DCR):约 163mΩ(较高的 DCR 会带来一定的功耗和温升)
  • 类型:磁胶屏蔽电感(利于降低磁通外泄与 EMI)

三、产品特点与优势

  • 小型化封装:3×3mm SMD 形式,适合空间受限的便携与高密度板设计。
  • 屏蔽结构:磁胶屏蔽设计可有效抑制外泄磁场,降低对周边敏感器件的干扰。
  • 均衡的电流与体积:额定电流 1.3A、饱和 1.4A,适合中低功率电源模块及滤波网络。
  • 可靠性考量:适配常见无铅回流焊工艺,便于自动化贴装与大批量生产。

四、典型应用场景

  • 升压/降压 DC-DC 转换器的能量存储与滤波元件。
  • USB 电源、移动电源、便携式设备的输入输出滤波。
  • 嵌入式系统与单板计算设备的局部电源去耦与噪声控制。
  • LED 驱动、电池管理模块等中低功率电源模块。

五、设计与使用建议

  • 电流裕量:为避免进入饱和区并控制温升,建议工作电流保持在额定电流 1.3A 以下,必要时留有 20% 以上裕量。
  • DCR 考量:163mΩ 的直流电阻会导致一定的损耗,系统热设计时需考虑会带来的温升与效率影响。
  • 布局建议:电感靠近开关管或整流器放置,输入输出电容与电感之间走短回路,减小寄生电感与环路面积。
  • 焊接工艺:推荐遵循厂家回流曲线或 IPC/JEDEC 无铅回流规范,避免超出材料允许的热循环,贴片与回流后应进行外观及电气测试。
  • 测试验证:在目标电路中验证饱和特性(Isat)、温升和 EMI 表现,必要时在实际工作频率下测量交流阻抗与损耗。

六、采购与质量提示

  • 型号:FNR3015S4R7MT,由 cjiang(长江微电)生产,采购时请确认包装、批次与制造商信息以防混淆。
  • 备件与替代:如需更高电流或更低 DCR,可在参数相近的系列中选择更大规格;更换时注意封装尺寸、饱和电流与 DCR 的匹配。
  • 存储与搬运:避免潮湿环境存放,开封后按贴片元件的防潮要求处理,回流焊前如需烘烤请按厂方建议执行。

以上为 FNR3015S4R7MT 的产品概述和工程应用提示,适用于初步选型与电路设计阶段。对于需要更详细的特性曲线(如频率响应、温升曲线、磁通泄露数据等)或封装机械尺寸与焊盘建议,请联系供应商获取完整数据手册与检验报告。

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