WMSIC Electronic Components

cjiang FNR3015S150MT

ModelFNR3015S150MT
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+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR3015S150MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR3015S150MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.075g
Inductor
15uH
Electronic Component
1
Electronic Component
BM0258614570
Current
720mA
Resistor(DCR)
455mΩ
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.

FNR3015S150MT 产品概述

一、产品简介

FNR3015S150MT 是长江微电(cjiang)推出的一款小型磁胶屏蔽功率电感,封装为 SMD,外形尺寸约 3 × 3 mm。标称电感值 15 µH,公差 ±20%,额定电流 720 mA,饱和电流(Isat)880 mA,直流电阻(DCR)约 455 mΩ。该器件适合体积受限且要求中低电流的开关电源滤波与能量储存场合。

二、主要特性与性能要点

  • 电感值:15 µH ±20%,适合低切换频率或需较大感量的电源回路。
  • 电流能力:额定工作电流 720 mA,饱和电流 880 mA,建议在额定电流附近应用时留有裕量以避免明显的感值下降。
  • 损耗与发热:DCR = 455 mΩ,按 P = I^2·R 估算,在额定工作电流下约为 0.24 W 的铜耗,实际温升与布局、环境散热密切相关。
  • 结构:磁胶屏蔽结构有助于抑制外漏磁场,适合对 EMI 有一定要求的应用。

三、典型应用场景

  • 降压(Buck)开关稳压器中的储能电感与输出滤波。
  • PMIC、电源管理模块、便携式设备电源。
  • LED 驱动、电池充放电前端滤波与能量缓冲。
  • EMI 抑制与电源输入滤波(需注意电感值与电流匹配)。

四、选型与使用建议

  • 电流裕量:为避免在工作时感值明显下降,建议在设计中将实际直流偏流控制在额定电流以下(常见做法为 70%~90% 的额定值,视系统可靠性要求而定)。
  • 损耗计算:按实际电流计算 I^2·DCR 评估器件发热,若功耗接近或超过数百毫瓦,应考虑散热或选用更低 DCR 的型号。
  • DC 偏置效应:电感在直流偏流下会出现显著下降,应在实际工作点(包含纹波电流)下测量确认满足滤波或能量转移要求。
  • 环境与温度:温度升高会影响 DCR 与磁性材料特性,必要时做温升测试并评估长期可靠性。

五、PCB 布局与焊接建议

  • 将电感放置在靠近器件(如开关器件与输出电容)的位置,减小高频回路面积以降低 EMI。
  • 焊盘与走线尽量短且宽,确保良好散热与低寄生电阻/电感。
  • 若为高功率应用,可在器件周围增加散热铜箔并通过过孔连接底层散热平面。
  • 使用标准无铅回流温度曲线进行焊接,避免重复暴露在高温下导致封装或磁胶性能退化。

六、可靠性与测试要点

  • 建议在样机阶段进行温升、寿命、振动与冲击测试,验证磁胶屏蔽电感在目标环境下的稳定性。
  • 在电路中测量实际工作频率下的电感值、直流电阻与纹波电流下的温升,确保满足设计裕度。
  • 注意潮湿与储存条件,若产品有湿敏等级要求请参照厂方包装说明进行回流前处理。

总结:FNR3015S150MT 以 3×3 mm 小封装提供 15 µH 的中大感量,适用于体积受限的中低电流开关电源与滤波场合。选型时重点关注额定电流、DCR 导致的功耗与 DC 偏置下的电感衰减,合理布局与散热设计能有效提高系统可靠性与效率。若需更多电气特性曲线或封装图,建议向供应商获取完整数据手册。

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