WMSIC Electronic Components

cjiang FNR4030S2R2MT

ModelFNR4030S2R2MT
PackageSMD,4x4mm
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 FNR4030S2R2MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4030S2R2MT
Electronic Component
1
Package
SMD,4x4mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.338g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0233302089
Current
3.2A
Resistor(DCR)
39mΩ
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.

FNR4030S2R2MT 产品概述

一、产品简介

FNR4030S2R2MT 是长江微电(cjiang)出品的一款表面贴装功率电感,标称电感值为 2.2 µH,公差 ±20%。器件采用磁胶屏蔽结构,封装尺寸为 4.0 × 4.0 mm,针对空间受限且需高电流处理能力的电源方案而设计,适用于各类开关电源与能量滤波场合。

二、主要电气参数

  • 电感值:2.2 µH(±20%)
  • 额定电流(Irated):3.2 A(连续工作建议不超过此值)
  • 饱和电流(Isat):5.8 A(在该电流附近电感开始明显下降)
  • 直流电阻(DCR):约 39 mΩ(典型值,测量温度通常为 25°C)
  • 类型:磁胶屏蔽电感(高磁通集中、抑制漏磁)

三、产品特性与优势

  • 高电流能力:3.2 A 的额定电流与 5.8 A 的饱和电流使其能在中高电流开关环节稳定工作。
  • 低 DCR:约 39 mΩ 的直流电阻有利于减小铜损与温升,提高效率。
  • 屏蔽结构:磁胶屏蔽减少对周围敏感电路的磁干扰,利于高密度布板设计。
  • SMD 小型化:4×4mm 的封装便于自动贴装与大批量生产,适合移动设备或工业控制板的紧凑设计。

四、典型应用场景

  • 同步降压(Buck)及升降压(Buck-Boost)DC-DC 转换器线圈
  • 手机、平板与便携式设备的电源前端滤波与储能
  • LED 驱动、电机驱动与电池管理系统(BMS)的开关滤波元件
  • 工业电源模块与高密度电源板的输入/输出滤波

五、使用与选型建议

  • 电流裕量:建议在系统设计时将实际工作电流与额定电流做 20%~30% 的裕量,以避免长期工作导致磁饱和或过高温升。
  • 温升与散热:密切关注电感在实际负载下的温升,长期温度过高会加速材料老化并改变电感特性。
  • 抑制涟漪与纹波:若用于降压电源,配合合适的电容与布局可最大限度降低输出纹波。
  • PCB 布局:进出电源走线尽量短且粗,地线回流路径要清晰,避开热源与高频敏感元件。

六、封装与工艺兼容性

FNR4030S2R2MT 为 SMD 贴片器件,封装尺寸 4×4 mm,适用于无铅回流焊工艺,便于自动贴装与回流焊接。建议参考厂商提供的推荐焊盘尺寸与回流温度曲线以获得最佳焊接可靠性。

七、可靠性与品质提示

长江微电作为品牌供应商,产品在设计上兼顾电磁性能与机械耐久。实际应用中建议做以下验证:温升测试、寿命循环(热循环、震动)及电气特性随温度/电流的漂移评估,以确保在目标工况下达到长期可靠性。

若需更详细的曲线数据(频率响应、A-L 曲线、温度特性)或推荐焊盘与封装 3D 数据,可联系供应商获取完整数据手册及样品支持。

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