WMSIC Electronic Components

cjiang FNR6045S6R8MT

ModelFNR6045S6R8MT
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FNR6045S6R8MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6045S6R8MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.834g
Inductor
6.8uH
Electronic Component
1
Electronic Component
BM0257699604
Current
3.3A
Resistor(DCR)
40mΩ
Electronic Component
Electronic Component
Electronic Component
1500

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

FNR6045S6R8MT — 6.8µH 功率屏蔽电感产品概述

一、产品简介

FNR6045S6R8MT 是长江微电(cjiang)推出的一款表面贴装磁胶屏蔽功率电感,标称电感值 6.8µH,公差 ±20%。器件为 SMD 结构,外形尺寸约 6×6 mm,适用于各类开关电源与电源滤波场景,兼顾高电流传输与良好电磁屏蔽性能。

二、主要电气参数

  • 电感值:6.8 µH(标称,±20%)
  • 额定电流:3.3 A(允许在规定温升下长期通过的电流)
  • 饱和电流(Isat):4.3 A(使电感值下降至一定比例时的临界电流)
  • 直流电阻(DCR):约 40 mΩ(影响损耗和温升)
  • 类型:磁胶屏蔽电感,SMD 封装,外形约 6×6 mm

三、结构与特性亮点

  • 磁胶屏蔽设计:有效降低磁通泄漏,对周边敏感元件干扰小,适合集成度较高的电源模块。
  • 低 DCR:40 mΩ 的直流电阻在同尺寸器件中能保持较低的铜损,有利于提升转换效率并控制温升。
  • 高饱和电流:4.3 A 的 Isat 使其在输出电流波动较大或瞬态冲击时仍能保持稳定工作。
  • 紧凑外形:6×6 mm 尺寸利于高密度布局,便于自动贴装与回流焊工艺。

四、典型应用场景

  • 降压/升压 DC-DC 转换器的输出滤波与能量储存
  • 电源管理模块(PMIC)与嵌入式电源模块(例如 POL)
  • 电池管理系统(BMS)与便携式设备电源滤波
  • LED 驱动、电机驱动等需要中等电流滤波的场合

五、选型与使用建议

  • 电流裕量:以额定电流 3.3 A 为长期运行参考值,设计时建议留有裕量(常用 70%~80% 额定值或按实际温升与效率要求确定)。瞬态或冲击电流应低于 Isat(4.3 A),避免电感饱和导致性能退化。
  • 温度与散热:注意周围器件热源与 PCB 铜箔散热,DCR 导致的功耗将随电流平方增加,需评估温升。
  • PCB 布局:输入输出电容与电感应尽量靠近,减少环路面积;屏蔽型电感有利于减小 EMI,仍需配合适当的地线设计。
  • 焊接工艺:支持常规回流焊,参照供应商推荐的回流曲线以避免过热导致可靠性问题。
  • 测试验证:建议在目标电路条件下测量实际电感、DCR 与温升,确认在工作频率与纹波电流下性能满足需求。

六、可靠性与包装

本类 SMD 功率电感通常经过焊接可靠性、温度循环与机械振动测试。供应商提供卷带(reel)包装,便于 SMT 自动化贴片与量产。具体数据请参考厂方规格书以获取完整的环境与寿命评估信息。

七、总结

FNR6045S6R8MT 是一款针对中高电流、对 EMI 要求较高场合设计的磁胶屏蔽功率电感。其 6.8µH 的电感值、3.3A 的额定电流与 4.3A 的饱和电流,以及 6×6 mm 的紧凑封装,使其在开关电源、PMIC 与便携设备电源设计中具备良好的平衡性。选用时应关注电流裕量、温升与 PCB 布局,以保证长期可靠运行。若需进一步参数(如频率特性、温度系数、典型损耗曲线与封装图纸),建议向厂方索取完整规格书与样品验证。

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