WMSIC Electronic Components

cjiang FNR6045S7R5MT

ModelFNR6045S7R5MT
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 FNR6045S7R5MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6045S7R5MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.834g
Inductor
7.5uH
Electronic Component
1
Electronic Component
BM0264799437
Current
3.2A
Resistor(DCR)
44mΩ
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.

FNR6045S7R5MT — 7.5µH 磁胶屏蔽功率电感产品概述

一、产品简介

FNR6045S7R5MT 是长江微电(cjiang)面向中高电流点位、开关电源滤波场景设计的一款磁胶屏蔽功率电感。标称电感值为 7.5µH,公差 ±20%,为表面贴装(SMD)封装,外形尺寸 6×6mm,适合空间受限但要求较高电流承载能力的电源应用。

二、主要电气参数

  • 电感值:7.5µH(±20%)
  • 额定电流:3.2A(工作时温升允许范围内的连续电流)
  • 饱和电流(Isat):3.8A(达到该电流时电感量明显下降)
  • 直流电阻(DCR):44mΩ(典型值)
  • 封装:SMD,尺寸 6×6mm
  • 类型:磁胶屏蔽电感(便于减少外泄磁场干扰)

说明:以额定电流 3.2A 运行为例,直流损耗近似为 I^2·DCR ≈ 0.45W,实际温升与工作频率、绕组损耗及环境散热有关,设计时应考虑适当的余量与散热条件。

三、性能与优势

  • 高电流承载:3.2A 的额定电流满足常见点位电源和升降压转换器的输出滤波需求。
  • 抗饱和能力:3.8A 的饱和电流提供短时浪涌或瞬态电流的保护余量,降低磁芯饱和风险。
  • 磁屏蔽设计:磁胶/屏蔽结构有利于抑制磁通外泄,减小对周围敏感器件的干扰,便于密集布局。
  • 紧凑封装:6×6mm SMD 适合自动贴装、回流焊工艺,方便在高度受限的板级设计中使用。

四、典型应用场景

  • 开关电源(Buck/Boost)输出滤波与能量储存
  • 点-of-load(POL)转换器与板级电源模块
  • LED 驱动、电池管理与便携设备电源
  • 工业控制与通信设备的电源滤波

五、使用建议与注意事项

  • 电流余量:建议在持续工作中尽量不超过额定电流 3.2A,如需通过较大脉冲电流,应确认短时温升和磁芯饱和情况。
  • 热管理:在高电流或高频应用中注意器件周边的散热路径,避免长期高温导致电阻上升和可靠性降低。
  • 布局:靠近开关管与二极管的滤波位置可缩短环路,但应留意磁屏蔽方向与敏感模拟信号的间隔。
  • 焊接工艺:遵循常规 SMD 回流焊曲线,避免反复高温循环。到货前向供应商确认推荐焊接温度曲线及包装形式。

六、选型与测试提示

  • 若系统允许更小的 DCR 或更高电流,应考虑相近电感值但更大截面的型号以降低损耗。
  • 在最终 PCB 上进行实际电感值、直流电阻与温升测试,并通过负载测试验证工作频率下的损耗与电感衰减。
  • 关注开漏瞬态与磁芯饱和临界点,必要时在仿真或实验中加入电流峰值工况验证。

如需器件样片、封装尺寸图或回流焊推荐曲线,可联系供应商获取更详细的制造与可靠性资料。

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