WMSIC Electronic Components

cjiang FNR3015S3R3MT

ModelFNR3015S3R3MT
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 FNR3015S3R3MT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR3015S3R3MT
Electronic Component
1
Package
SMD,3x3mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.075g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0233272288
Current
1.6A
Resistor(DCR)
104mΩ
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.

FNR3015S3R3MT 产品概述

一、产品简介

FNR3015S3R3MT 是长江微电(cjiang)推出的一款功率型磁胶屏蔽贴片电感,封装尺寸为 SMD 3.0 × 3.0 mm,适用于空间受限的电源滤波与能量传输场合。该器件以 3.3 μH ±20% 的电感值为基准,兼顾较高的额定电流与较低的直流损耗,适配小型开关稳压器与电源管理模块。

二、主要参数

  • 电感值:3.3 μH,公差 ±20%
  • 额定电流(Irms):1.6 A(典型连续工作电流)
  • 饱和电流(Isat):1.81 A(电感下降至标称值的 30% 左右时)
  • 直流电阻(DCR):104 mΩ(典型)
  • 类型:磁胶屏蔽电感(屏蔽结构,有利于减少电磁干扰)
  • 封装:SMD,3 × 3 mm
  • 品牌:cjiang(长江微电)
  • 型号:FNR3015S3R3MT

三、产品特点与优势

  • 小体积高密度:3×3 mm 小封装,适合便携式与板端密集布局。
  • 屏蔽结构:磁胶屏蔽设计可抑制磁通外泄,降低对周边元件的干扰。
  • 良好电流处理能力:1.6 A 额定电流满足多数低功率开关电源与负载滤波需求,1.81 A 的饱和电流为短时峰值提供裕量。
  • 损耗可控:104 mΩ 的 DCR 在同类器件中保持中等水平,兼顾温升与效率。

四、典型应用场景

  • 降压/升压 DC–DC 转换器滤波电感(移动电源、平板、便携设备)
  • 电源模块输入/输出滤波(通信模块、物联网终端)
  • LED 驱动与背光电源
  • 各类消费电子与工业低功耗电源解决方案

五、选型与使用建议

  • 温升与效率:依据 DCR 计算 I^2·R 损耗,若系统长期工作电流接近额定值,建议考虑一定的余量或并联方案以降低温升。
  • 饱和裕量:若电路存在较大脉冲电流,应保证工作峰值小于 Isat,通常建议工作电流 ≤ 70–80% 的 Isat。
  • 高频性能:在开关频率较高时,关注器件的频率特性与纹波电流容忍度,必要时参考厂商详尽的频率响应曲线。
  • 环境与可靠性:高温环境下电感值会发生漂移,请遵循厂商的温度系数与老化建议。

六、PCB 布局与焊接注意事项

  • 安装位置:靠近开关器件或输出电容以缩短回流路径,减小 EMI。
  • 熔焊工艺:遵循无铅回流曲线,避免超温或二次回流;焊盘尺寸与焊膏量应符合厂方推荐,保证良好焊接可靠性。
  • 散热与间距:若周围有发热元件,应留出散热空间;必要时增加铜箔面积以扩散热量。

七、测试与质量验证

  • 推荐在目标应用电路中做温升测试、纹波电流测试及饱和曲线测量;进行多次回流与振动测试以验证可靠性。
  • 在关键设计中,建议与供应商确认完整的数据手册和耐久性测试报告,确保器件满足系统级要求。

结语:FNR3015S3R3MT 以其紧凑尺寸、屏蔽结构和中等电流承载能力,适合多种便携与嵌入式电源应用。正确的选型与良好的 PCB 布局、热管理可以最大化其在实际电源系统中的性能与可靠性。若需完整技术参数与波形图,请索取厂商数据手册或样品进行实测验证。

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