WMSIC Electronic Components

cjiang FNR6028S3R3NT

ModelFNR6028S3R3NT
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR6028S3R3NT
Type
CJIANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6028S3R3NT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±30%
Electronic Component
0.525g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0264590575
Current
3.8A
Resistor(DCR)
33mΩ
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.

FNR6028S3R3NT 功率电感(3.3µH,4.5A)产品概述

一、主要参数

  • 型号:FNR6028S3R3NT
  • 品牌:cjiang(长江微电)
  • 电感值:3.3 µH(标称)
  • 公差:±30%
  • 额定电流(Irms):3.8 A
  • 饱和电流(Isat):4.5 A(典型)
  • 直流电阻(DCR):约 33 mΩ
  • 类型:磁胶屏蔽电感(磁屏蔽、低漏磁)
  • 封装:SMD 贴片,封装尺寸 6 mm × 6 mm

二、产品特点

  • 大电流能力:额定电流 3.8A,饱和电流 4.5A,适合中功率点对点电源应用。
  • 低直流电阻:约 33 mΩ,有利于降低导通损耗和发热,提高能效。
  • 磁胶屏蔽结构:有效减少磁通外泄和相邻器件干扰,便于基板密集布局。
  • 标准SMD封装:6×6mm 规格,适配自动贴装、回流焊工艺,便于量产装配。
  • 宽公差选项:±30% 公差满足一般降压、滤波等电源设计的容差要求。

三、典型应用场景

  • DC-DC 降压(Buck)转换器:同步整流或非同步方案的输出滤波与能量储存。
  • 模块化电源与电源管理:板级电源模块、POL(Point-Of-Load)模块。
  • LED 驱动与便携设备电源:需要较高电流、体积受限的移动设备、通信设备。
  • 工业与消费类电源:电池供电系统、充电器、嵌入式电源子系统。

四、封装与安装建议

  • 尺寸 6×6 mm,建议采用对应的焊盘布局以保证焊接可靠性与热散逸。
  • 支持回流焊,建议按焊锡膏厂商与元件厂商给出的回流曲线控制峰值温度与保温时间。
  • 布局建议:进出线尽量短且宽,靠近开关器件与电容布局以降低寄生阻抗;避免将敏感走线穿过电感附近以减小电磁干扰。

五、选型与使用注意事项

  • 饱和裕量:设计时应确保最大直流偏置电流加上纹波电流不超过 Isat,否则电感值会显著下降,影响转换效率与稳定性。
  • 温升与散热:高电流下 DCR 损耗会导致发热,应评估在工作温度下的电阻变化并留有余量。
  • 纹波电流考量:设计时按照实际峰峰纹波电流计算损耗而非仅按额定电流。
  • 公差影响:±30% 公差对环路控制和输出电压纹波有影响,关键应用可考虑更精确电感或调整电容值补偿。

六、可靠性与测试

  • 建议在实际应用环境下进行温升、效率与长期功耗测试,包括高温高湿、热循环与机械应力测试。
  • 对于批量采购,建议索取并验证样品的电感值、DCR 和 Isat 特性曲线,确认与设计参数一致。

七、替代与配套建议

  • 可替换为同类规格(3.3 µH、相近 DCR 与 Isat)的磁屏蔽功率电感,选型时优先匹配 Isat、DCR 与封装尺寸。
  • 与低ESR 输出电容搭配,可有效降低输出纹波并提高转换效率;与合适的肖特基或同步整流管搭配,可充分发挥高电流能力。

总结:FNR6028S3R3NT 为一款面向中等功率应用的 SMD 磁胶屏蔽功率电感,具有较高的电流承载能力和低 DCR 特性,适合用于 DC-DC 转换、POL 模块及各类需要紧凑布局与较低漏磁的电源场合。选型时关注饱和电流、温升与实际纹波电流,以保证长期可靠运行。

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