WMSIC Electronic Components

cjiang FNR6045S331MT

ModelFNR6045S331MT
PackageSMD,6x6mm
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 FNR6045S331MT
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6045S331MT
Electronic Component
1
Package
SMD,6x6mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.834g
Inductor
330uH
Electronic Component
1
Electronic Component
BM0233262818
Current
630mA
Resistor(DCR)
1.651Ω
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.

FNR6045S331MT 产品概述

一、产品简介

FNR6045S331MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,标称电感值为 330 μH,精度 ±20%,以 SMD 封装形式提供,封装尺寸 6×6 mm。该器件针对中低频功率滤波和能量存储场景设计,具有屏蔽结构,适合集成度较高的贴片电路。

二、主要参数

  • 电感值:330 μH ±20%
  • 额定电流:630 mA
  • 饱和电流(Isat):630 mA
  • 直流电阻(DCR):1.651 Ω
  • 类型:磁胶(磁性胶体)屏蔽电感(SMD)
  • 封装:SMD,6×6 mm
  • 品牌:cjiang(长江微电)

三、性能特点

  • 屏蔽设计:磁胶屏蔽结构有效抑制磁泄漏,降低对旁路器件的干扰,便于在密集贴片环境中使用。
  • 大电感值:330 μH 在低频滤波和能量存储方面效果良好,适合需要较大电感量的滤波回路。
  • 电流与饱和特性:额定电流与饱和电流均为 630 mA,说明在接近该电流水平时电感量会明显下降,需预留裕量。
  • DCR 相对偏大:1.651 Ω 的直流电阻意味着在高直流电流条件下会产生较高的功耗与发热,应在热设计中考虑。

示例功耗估算:在额定电流 0.63 A 下,直流损耗约为 P = I^2·DCR ≈ 0.63^2×1.651 ≈ 0.66 W,提示在长期工作时需注意温升与可靠性。

四、典型应用

  • 开关电源的输入/输出滤波(低频段)
  • 电源管理模块的能量存储元件(低功率 DC-DC 降压/升压)
  • EMI/噪声抑制滤波器
  • 便携设备、仪器仪表及工业控制中对体积、电磁兼容有要求的场合

五、选型与注意事项

  • 电流裕量:由于 Isat 与额定电流相等,建议实际工作电流应有额外裕量(常见做法为不超过额定电流的 70%~80%),以避免饱和导致电感值急剧下降。
  • 效率与损耗考量:高 DCR 导致较大直流损耗,不适合对效率要求极高或连续大电流的场合;若目标为高效率,请优先选择低 DCR 的功率电感或增加并联方案。
  • 工作频率:330 μH 更适合低频滤波与能量存储,非高频开关电源主磁性元件(如数百 kHz 核心频率下体积与串联阻抗需再评估)。
  • 温升与可靠性:按估算功耗进行散热设计,器件四周保留合适散热铜面或过孔,有助于延长寿命与稳定性能。

六、封装与安装建议

  • 封装尺寸 6×6 mm,适合常规 SMD 贴片工艺;推荐按照厂商提供的 PCB 推荐焊盘进行布局。
  • 焊接工艺:建议采用标准回流焊工艺,遵循焊锡材料的温度曲线规范,避免反复高温循环。
  • 布局与散热:器件底部和周围放置较大铜箔与若干过孔以利于热量传导;避免将高发热器件紧邻,保持适当间距以降低温升。

七、结论

FNR6045S331MT 是一款面向中低频功率滤波与能量存储的磁胶屏蔽 SMD 电感,具有较大的电感值和良好屏蔽性。适用于对体积、EMI 有要求但电流不很大的应用场合。在选型时需关注其较高的 DCR 与额定电流附近的饱和特性,合理预留电流裕量并做好散热设计,以保证电路性能与可靠性。若需详细的尺寸图、PCB 封装建议或温度-电流特性曲线,可联系供应商获取完整数据手册。

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