WMSIC Electronic Components

cjiang FNRH252012S-150MT FNRH252012S

ModelFNRH252012S-150MT
PackageSMD,2x2.5mm
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 FNRH252012S-150MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNRH252012S-150MT
Electronic Component
1
Package
SMD,2x2.5mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.052g
Inductor
15uH
Electronic Component
1
Electronic Component
BM0265018985
Current
600mA
Resistor(DCR)
1Ω
Electronic Component
Electronic Component
Electronic Component
2000
and Current(Isat)
700mA

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

FNRH252012S-150MT(cjiang 长江微电)产品概述

一、产品简介

FNRH252012S-150MT 是长江微电(cjiang)推出的一款小型表面贴装功率电感,封装尺寸为 2.0 × 2.5 mm,设计用于移动终端、便携式设备、工业控制和各类 EMI/滤波应用。其标称电感值为 15 µH,公差 ±20%,额定电流 600 mA,饱和电流 700 mA,直流电阻(DCR)约 1 Ω。该器件体积小、便于贴装,适合空间受限的 PCB 布局。

二、主要参数(关键规格)

  • 型号:FNRH252012S-150MT
  • 品牌:cjiang(长江微电)
  • 电感值:15 µH(±20%)
  • 额定电流(Irated):600 mA
  • 饱和电流(Isat):700 mA
  • 直流电阻(DCR):1 Ω(典型/最大值按出厂测试)
  • 封装形式:SMD,封装尺寸 2.0 × 2.5 mm

三、性能特点

  • 小型化封装,节省 PCB 面积,适合高密度板级设计。
  • 适合低至中等电流场合的能量存储与滤波用途。
  • 良好的频率响应与抑制共模/差模干扰能力(视电路配置)。
  • 标准 SMD 工艺兼容无铅回流焊,便于自动化贴装与生产。

四、典型应用场景

  • DC-DC 降压/升压转换器的输入/输出滤波器(对效率和发热有严格控制时需注意 DCR)。
  • 电源输入的 EMI 滤波与纹波抑制,尤其在对体积和成本敏感的产品中。
  • 消费类电子(便携设备、蓝牙/IoT 芯片电源滤波)。
  • 低功率 LED 驱动及信号链抗干扰模块(注意电流与热管理)。

五、选型与使用建议

  • 热与损耗考虑:由于 DCR 为 1 Ω,在 600 mA 时的直流损耗约为 P = I^2·R = 0.6^2 × 1 Ω = 0.36 W,热量较大,会导致器件温升和效率下降,因此在近额定电流条件下需做好散热或选择 DCR 更低的功率电感。
  • 电流余量:建议工作电流在额定电流的 60%~80% 范围内(视系统允许的温升与效率要求而定),避免长期接近或超过饱和电流,以保持电感值和稳定性。
  • 饱和特性:Isat = 700 mA 表示在过大直流偏置下电感会下降并趋于饱和,设计时应留有足够裕量以避免电感值突降影响电路性能。
  • 频率特性:使用前请在目标工作频段对电感的阻抗曲线做仿真或实测,评估滤波效果与寄生影响(如自谐频率、并联电容效应等)。

六、封装与焊接

  • 尺寸 2.0 × 2.5 mm 的 SMD 封装,适配自动贴片生产线。
  • 推荐采用标准无铅回流焊工艺,遵循器件制造商提供的回流温度曲线与焊盘布局建议。
  • 由于器件较小,焊盘设计与回流参数会影响焊接可靠性与热循环性能,建议在设计阶段与 PCB 制造联调并做首批样板验证。

七、替代与注意事项

  • 若应用对效率和发热敏感,应考虑选用同类电感中 DCR 更低、额定电流更高的产品(例如线绕或片式功率电感)。
  • 在高温环境或连续大电流应用中,建议做实测温升与长期可靠性试验。
  • 对于对噪声要求更高的电源模块,可与电容、共模电感等组合使用,形成复合滤波网络以提升抑制效果。

八、总结

FNRH252012S-150MT 为一款体积极小、适用于空间受限场合的 15 µH SMD 功率电感,适合低至中等电流的滤波和能量存储应用。需注意其较高的 DCR 在高电流时带来的功耗与发热问题,选型时应综合电流余量、效率与散热条件。如需替代或在高功率场合使用,建议优先考虑 DCR 更低、额定电流更大的器件。若需更多详细信息(如封装图、回流焊曲线、阻抗 vs 频率曲线或样片评估),建议联系供应商或下载器件的详细规格书进行验证。

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