WMSIC Electronic Components

cjiang FNR6020S2R2MT

ModelFNR6020S2R2MT
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 FNR6020S2R2MT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6020S2R2MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.42g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0265018915
Current
3.5A
Resistor(DCR)
36mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

FNR6020S2R2MT 产品概述

一、产品简介

FNR6020S2R2MT 是长江微电(cjiang)推出的一款表面贴装功率电感,标称电感值为 2.2 μH,公差 ±20%。该器件采用磁胶屏蔽结构,封装为 SMD,外形尺寸约为 6×6 mm,针对中高电流的开关电源和电源管理模块进行了优化。额定工作电流为 3.5 A,饱和电流(Isat)为 4.5 A,直流电阻(DCR)为 36 mΩ,适合用于需要较大电流承载与较低损耗的电感滤波场合。

二、主要参数

  • 型号:FNR6020S2R2MT
  • 品牌:cjiang(长江微电)
  • 电感值:2.2 μH(±20%)
  • 额定电流:3.5 A(持续工作建议值)
  • 饱和电流(Isat):4.5 A(磁芯开始显著降感的电流)
  • 直流电阻(DCR):36 mΩ
  • 类型:磁胶屏蔽电感(屏蔽式功率电感)
  • 封装:SMD,外形尺寸 6×6 mm(典型)

注:以上参数为器件典型规格,具体性能受工作温度、频率、安装方式及散热条件影响,请结合厂方完整数据表进行最终设计。

三、产品特点

  • 高电流能力:额定电流 3.5 A、饱和电流 4.5 A,适合中高电流的 DC-DC 降压、输出滤波等场景。
  • 低 DCR:36 mΩ 的直流电阻有助于降低导通损耗和温升,提升系统效率。
  • 屏蔽结构:磁胶屏蔽设计抑制外泄磁场,降低对周围元件的干扰,便于密集布局。
  • 封装紧凑:6×6 mm 的 SMD 封装兼顾空间占用和电流承载能力,便于自动化贴装和回流焊工艺。
  • 稳定性好:在额定工况下提供稳定的电感值,适配多种开关频率应用。

四、典型应用场景

  • 同步降压(Buck)转换器的电感元件(输入侧/输出侧滤波)
  • 电源管理模块(PMIC)、点对点电源滤波
  • 移动设备、通信设备及工业控制中的功率滤波与储能
  • LED 驱动电源、电池供电系统的开关滤波与能量传输
  • 需要屏蔽、低干扰电源设计的场合

五、选型与注意事项

  • 工作电流裕量:建议长期工作电流不超过额定 3.5 A,尽量留有裕量避免接近饱和电流 4.5 A。饱和时电感将显著下降,可能导致输出纹波和稳定性问题。
  • 损耗计算与热管理:器件损耗主要为 I²·DCR。以额定电流 3.5 A 为例,损耗约为 3.5² × 0.036 Ω ≈ 0.44 W;实际损耗还受交流涡流和磁芯损耗影响。设计时应评估散热条件,必要时降低电流或增加散热。
  • 频率特性:电感在不同开关频率下表现不同,需参考完整频率响应和纹波电流容限数据以匹配系统开关频率。
  • 温度与寿命:高温会影响磁芯特性与电阻,应考虑环境温度与 PCB 热阻,遵循厂方的温度范围与焊接规范。
  • 封装与布局:充分考虑贴片方向、焊盘面积与热回流通道,避免靠近热源或高磁敏感元件。

六、布局与焊接建议

  • 焊盘设计应参考厂方推荐的 land pattern,保证良好焊盘连接与散热通道。
  • 为减少 EMI,将电感与开关管、二极管等热源适当隔离,同时尽量缩短高电流回路的走线长度。
  • 回流焊时遵守无铅焊接温度曲线,避免过高峰值温度和延长高温停留时间。
  • 搬运和储存时避免受潮、强振动和机械冲击,必要时按常规电子元器件防潮要求处理。

七、可靠性与测试建议

  • 在样机阶段建议进行热成像和功率循环测试,确认在目标负载下的温升与电感稳定性。
  • 做纹波电流扫描与直流偏置测试,以确定在目标工作点的有效电感值和耦合行为。
  • 进行满载老化和振动测试以验证封装可靠性,特别是在工业或车规类应用前进行额外验证。

八、订购信息与包装

  • 推荐以完整型号 FNR6020S2R2MT 向供应商下单,并在采购前索取最新数据手册与样品进行验证。
  • 了解供应批次、包装形式(卷盘/托盘)和出货前的外观检测、性能一致性保障,以便于生产对接。

总结:FNR6020S2R2MT 以 2.2 μH、3.5 A 的设计定位,结合 36 mΩ 的低 DCR 和磁胶屏蔽结构,适合要求中高电流、低噪声与紧凑封装的电源设计。在最终使用前,请务必参照厂方完整数据表进行电气和热特性验证,并根据实际工况做好热管理与电流裕量设计。

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