WMSIC Electronic Components

cjiang FNR6028S470MT

ModelFNR6028S470MT
PackageSMD
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR6028S470MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6028S470MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.525g
Inductor
47uH
Electronic Component
1
Electronic Component
BM0264491080
Current
1.1A
Resistor(DCR)
410mΩ
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.

FNR6028S470MT 产品概述

一、产品简介

FNR6028S470MT 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,外形尺寸约 6×6 mm。标称电感值为 47 μH,允差 ±20%;额定电流 1.1 A,饱和电流(Isat)为 1.3 A;直流电阻(DCR)约 410 mΩ。该器件以磁胶屏蔽结构为特色,兼顾较高电感量与良好抗干扰性能,适用于体积受限的电源滤波与能量传输场合。

二、主要电气参数

  • 电感量:47 μH ±20%
  • 额定电流:1.1 A(连续工作时建议不超过此值以控制温升与保持线性)
  • 饱和电流(Isat):1.3 A(在此电流附近电感值将出现明显下降)
  • 直流电阻(DCR):约 410 mΩ(较高的 DCR 会导致较大 I²R 损耗,应在设计时考虑)
  • 封装:SMD,6×6 mm,适用于自动贴片生产线

三、结构与性能特点

磁胶屏蔽结构使器件具有较好的磁通限制与外部干扰抑制能力,相比无屏蔽电感在系统 EMI 控制上更有优势。6×6 mm 的紧凑尺寸适合中小功率点到点电源、降压转换器与滤波网络。高电感值配合中等额定电流使其在需要较大储能且电流不太高的场景表现良好。

四、典型应用场景

  • 开关稳压器(DC-DC 降压/升压)中的能量储存电感
  • 输入/输出电源滤波,抑制开关噪声与纹波
  • LED 驱动与小功率电源模块
  • 电池管理系统与便携设备的电源路径滤波
    在选择应用时需注意保持实际工作电流低于额定电流以避免过大的温升和接近饱和区。

五、选型建议与注意事项

  • 电流裕量:建议工作电流留有 20%~30% 余量,避免接近 Isat 导致电感突降。
  • 功耗与温升:DCR = 410 mΩ,工作电流的 I²R 损耗不可忽视,设计时评估在最大工作电流下的功耗与 PCB 散热条件。
  • 频率特性:高电感值在较低开关频率下更容易发挥作用;在高频应用中应评估电感随频率的降低及自谐振影响。
  • 环境与可靠性:磁胶屏蔽有助于降低磁泄露,但在高温或潮湿环境下仍需参考厂商的温度特性与可靠性测试数据。

六、封装、焊接与测试建议

  • PCB 布局:电感尽量靠近电源管脚与负载,减少环路面积;留意焊盘尺寸与热焊接配合,避免因过量焊料影响机械强度。
  • 回流焊工艺:遵循通用无铅回流曲线进行焊接,避免长时间高温暴露以保护磁胶材料性能。
  • 检测方法:测量电感值通常在规定测试频率下进行;DCR 用高精度毫欧表测量;饱和电流可通过增加直流偏置电流并观察电感下降趋势来判断(参照厂商定义的饱和判据)。
  • 储存与搬运:避免强磁场、重压与极端潮湿环境,防止器件性能退化。

总结:FNR6028S470MT 以 47 μH、1.1 A 的额定电流和 6×6 mm 的 SMD 封装,适合对体积与 EMI 有一定要求的中小功率电源应用。在实际设计中需综合考虑 DCR 导致的损耗、工作电流裕量以及温升与频率特性,按厂商推荐的焊接与测试流程进行验证,以确保系统长期可靠运行。

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