WMSIC Electronic Components

cjiang FNR4020S1R0MT

ModelFNR4020S1R0MT
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR4020S1R0MT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR4020S1R0MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.245g
Inductor
1uH
Electronic Component
1
Electronic Component
BM0264754154
Current
3.2A
Resistor(DCR)
38mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

FNR4020S1R0MT 产品概述

FNR4020S1R0MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,封装为 SMD 贴片型,外形尺寸约 4×4 mm,面向对体积、效率与电流承载有较高要求的电源应用。器件标称电感值 1.0 μH,公差 ±20%,额定电流 3.2 A,饱和电流(Isat)5.2 A,直流电阻(DCR)约 38 mΩ,适合开关电源与点位负载滤波场景。

一、主要参数一览

  • 电感值:1.0 μH(±20%)
  • 额定电流:3.2 A(连续载流能力)
  • 饱和电流(Isat):5.2 A(电感下降到80%前的限制)
  • 直流电阻(DCR):≈ 38 mΩ(低损耗)
  • 封装:SMD,尺寸约 4 × 4 mm
  • 类型:磁胶屏蔽电感(提高机械稳定性与电磁屏蔽)

二、结构与特性说明

磁胶屏蔽工艺在磁芯外部覆以粘结/灌封材料,一方面增强了磁路的屏蔽与抗振性,另一方面改善了散热与可靠性表现。4×4 mm 的小型封装在保证较高电流能力的同时,适配现代紧凑型 PCB 布局要求。38 mΩ 的低 DCR 有利于降低铜损,提高系统效率和热管理余量。

三、应用场景

  • 同步/非同步 DC-DC 降压转换器的输出侧电感(点位负载)
  • 电源滤波器(输入/输出滤波)与负载抑制回路
  • 通信、消费电子、工业控制中对中等电流、高效率的电源模块
  • 需要良好抗振动与屏蔽性能的严苛环境

四、选型与使用建议

  • 额定电流 3.2 A 为长期连续导通参考值,如工作点临近饱和电流或有较大纹波电流,应预留裕量;建议考虑电感在实际电流和温度下的电感衰减与温升。
  • 布局时把电感与输入/输出电容尽量靠近,走线短且粗,必要时增加过孔改善散热。
  • 关注回流焊工艺,按器件厂商推荐的回流曲线进行焊接,避免过长高温暴露影响磁胶与粘结材料。
  • 量产前建议在目标系统中做温升、效率与电感饱和测试,验证在最大纹波电流下的实际表现。

如需器件三维尺寸图、PCB 推荐封装或更详细的电气特性曲线(温度系数、频率特性、纹波电流下的电感变化等),建议联系供应商长江微电(cjiang)获取原厂数据手册与样品测试支持。

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