WMSIC Electronic Components

cjiang FNR3015S470MT

ModelFNR3015S470MT
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 FNR3015S470MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR3015S470MT
Electronic Component
1
Package
SMD,3x3mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.075g
Inductor
47uH
Electronic Component
1
Electronic Component
BM0233270309
Current
440mA
Resistor(DCR)
1.625Ω
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.

FNR3015S470MT 产品概述

一、性能概述

FNR3015S470MT 是长江微电(cjiang)推出的一款 SMD 功率电感,典型用于开关电源滤波与电源管理场景。主要参数如下:

  • 电感值:47 µH,公差 ±20%
  • 额定电流(Irated):440 mA
  • 饱和电流(Isat):430 mA
  • 直流电阻(DCR):1.625 Ω
  • 类型:磁胶屏蔽电感(磁屏蔽、低辐射)
  • 封装:SMD,外形尺寸 3 × 3 mm

该器件在小体积下提供中等电感量,适合对体积和抗干扰有要求的低/中功率电源环节。

二、典型应用场景

  • 移动设备与便携式电源:为小电流稳压输出或滤波回路提供磁性元件解决方案。
  • DC-DC 降/升压模块:与开关器件配合,用于输出滤波或能量储存(适用于额定电流范围内)。
  • EMI/EMC 抑制:磁胶屏蔽结构有利于降低磁通泄漏,适用于对电磁干扰敏感的电路。
  • 工业与通信终端:适用于低至中等电流的电源滤波与信号链去耦。

三、性能解读与设计建议

  • 电流指标:额定电流 440 mA 指在规定温升条件下的连续允许电流;饱和电流 430 mA 表示在该电流附近电感量开始显著下降。建议在实际设计中留有裕量,典型选型时考虑工作电流不超过额定值的 70%~90%,以避免温升过大或进入饱和区。
  • 直流电阻:1.625 Ω 相对偏高,意味着在较高直流负载下会产生较明显的 I^2R 损耗。选用该型号时应评估效率影响与发热情况,适合对功率损耗敏感度较低或电流较小的场合。
  • 屏蔽与布局:磁胶屏蔽有利于降低对周围元件的磁干扰,建议与敏感器件保持适当间距并采用短回路的走线。尽量将电感与输入/输出电容靠近以减少环路面积,提升滤波效果。
  • 温度与稳定性:在高温或长期大电流工况下,注意器件热阻和周围散热条件,必要时使用铜箔增加散热路径或在底层布置过孔以辅助散热。

四、封装与焊接、可靠性建议

  • 封装为 3×3 mm SMD,适合自动贴装与回流焊。推荐遵循厂家回流焊温度曲线(一般无铅回流标准),避免重复高温暴露导致磁性材料性能退化。
  • 存储与清洗:避免长期高湿高温存储,清洗时选择对磁性材料友好的溶剂并控制超声清洗强度。
  • 可靠性试验:在关键应用中建议进行温升测试、振动与跌落测试以及长期老化评估,验证电感在目标环境下的稳定性。

五、采购信息与注意事项

  • 型号:FNR3015S470MT,制造商:cjiang(长江微电)。
  • 选型时注意电感公差 ±20% 对实际滤波频率与阻抗的影响;若需更紧公差或更低 DCR,可咨询厂方替代型号。
  • 批量采购前建议索取样品并在目标电路中进行实测,验证温升、效率与滤波性能是否满足设计要求。

六、总结

FNR3015S470MT 以小体积(3×3 mm)和较高电感值(47 µH)提供了适合小电流电源与 EMI 抑制的解决方案。其磁胶屏蔽结构便于在对电磁兼容有要求的产品中使用,但较高的 DCR 要求设计时关注效率与发热。合理留有电流裕量、优化 PCB 布局与散热处理,可以发挥该器件在便携与工业终端中的性能优势。若需更高电流承载或更低损耗版本,可向厂家咨询相近封装的其他系列型号。

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