WMSIC Electronic Components

cjiang FNR5040S682MT

ModelFNR5040S682MT
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+

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Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR5040S682MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR5040S682MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.579g
Inductor
6.8mH
Electronic Component
1
Electronic Component
BM0264900058
Current
86mA
Resistor(DCR)
55.9Ω
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.

FNR5040S682MT 磁胶屏蔽功率电感产品概述

FNR5040S682MT是长江微电(cjiang)推出的一款小型化表面贴装(SMD)磁胶屏蔽功率电感,针对低功耗电子设备的滤波、储能需求设计,兼具小体积、低电磁干扰(EMI)和稳定电气性能等特点,广泛适配物联网终端、便携式电子等场景。

一、产品基本信息

该型号属于长江微电功率电感系列,命名规则清晰体现核心特征:

  • “5040”对应封装尺寸为5mm×5mm(长×宽),适配高密度PCB布局;
  • “S”标识磁胶屏蔽结构,有效抑制电磁辐射;
  • “682”表示电感值为6.8mH(前两位为有效数字,第三位为10的幂次,即68×10²μH=6.8mH);
  • “MT”为封装/材料代码,明确产品工艺特性。

采用SMD表面贴装形式,兼容回流焊工艺,适合自动化批量生产,可显著提升电子设备组装效率。

二、关键电气性能参数

FNR5040S682MT的电气参数经过优化,满足低功耗场景的稳定工作需求:

  1. 电感值与精度:标称电感值6.8mH,精度±20%,符合功率电感常规精度要求,覆盖多数滤波、储能应用的电感量需求;
  2. 电流能力:
    • 额定电流(Irms)86mA:电感长期连续工作的最大允许电流(不超过温升限制);
    • 饱和电流(Isat)110mA:电感值下降至初始值10%时的电流,可作为过流保护设计的参考阈值;
  3. 直流电阻(DCR):典型值55.9Ω,反映线圈直流损耗,需结合工作电流计算功耗(P=I²×DCR),设计时需注意控制温升;
  4. 磁胶屏蔽特性:磁胶包裹铁芯结构,相比非屏蔽电感可降低对外电磁辐射,减少周边电路干扰,适配EMI敏感场景(如射频模块、传感器电路)。

三、结构与封装特点

  1. 小型化封装:5mm×5mm的SMD封装,高度符合现代电子设备轻薄化趋势,节省PCB空间,适配高密度组装;
  2. 磁胶屏蔽结构:磁胶兼具绝缘与屏蔽双重作用,既减少电感自身干扰外泄,又降低外界干扰对电感的影响,提升电路稳定性;
  3. 焊接可靠性:引脚设计合理,兼容回流焊工艺,焊接后机械强度高,可适应振动、冲击环境,满足消费级/工业级设备可靠性要求。

四、典型应用场景

因小体积、低电流、低EMI的特点,主要应用于:

  1. 低功耗电源模块:物联网终端(智能手环、智能家居传感器)的DC-DC转换滤波、线性电源滤波,抑制纹波;
  2. LED驱动电路:小型LED指示灯、背光驱动的滤波电感,稳定电流输出,减少光闪烁;
  3. 射频前端电路:蓝牙、WiFi模块的信号滤波,磁胶屏蔽降低射频干扰,提升通信稳定性;
  4. 传感器模块:温度、湿度传感器的电源滤波,避免电磁干扰影响精度;
  5. 便携式电子:蓝牙耳机、智能手表的电源管理电路,适配设备小型化需求。

五、选型与使用注意事项

  1. 电流匹配:实际工作电流需低于额定电流86mA,瞬时电流超饱和电流110mA时,需降额或增加保护电路;
  2. 精度需求:±20%精度适合常规滤波,高精度需求(如医疗设备)需选更高精度型号;
  3. 焊接工艺:回流焊峰值温度控制在230-250℃(时间≤10s),避免高温损坏磁芯;
  4. 环境温度:常规工作温度-40℃~85℃,超温需降额(每升高10℃降额约10%);
  5. EMI要求:无严格EMI需求时可考虑非屏蔽电感降本,但需加强周边抗干扰设计。

FNR5040S682MT凭借小体积、低EMI和稳定性能,成为低功耗电子设备电感选型的实用方案,可有效满足多种场景的滤波、储能需求。

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