WMSIC Electronic Components

cjiang FNR6028S102MT

ModelFNR6028S102MT
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 FNR6028S102MT
Type
SMD
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6028S102MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.525g
Inductor
1mH
Electronic Component
1
Electronic Component
BM0264590523
Current
260mA
Resistor(DCR)
7.54Ω
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.

FNR6028S102MT 产品概述

一、产品简介

FNR6028S102MT 是长江微电(cjiang)出品的一款磁胶屏蔽功率电感器,封装为 SMD,外形尺寸约 6×6 mm。主要电气参数如下:

  • 电感值:1 mH,公差 ±20%
  • 额定电流:260 mA(连续工作电流)
  • 饱和电流 Isat:220 mA(达到规定磁饱和时的电流)
  • 直流电阻 DCR:7.54 Ω
  • 类型:磁胶屏蔽(屏蔽式功率电感,适合减小外泄磁场)

该器件针对体积受限且对电感量要求较高、但工作电流较小的电源与滤波场合设计。

二、主要特性与优势

  • 屏蔽结构:磁胶屏蔽降低磁通泄露与对周围元件的干扰,便于高密度布局。
  • 紧凑封装:6×6 mm SMD 封装,适合自动贴装与回流焊工艺。
  • 高电感值:1 mH 在小体积下提供较大的储能能力,适用于低频滤波与能量储存。
  • 工艺稳定:适合批量生产与标准 SMT 工艺流程。

三、电气参数与应用含义

  • DCR 较高(7.54 Ω):意味着在较大电流下会产生显著的 I^2R 损耗。例如在额定 260 mA 时,损耗约为 P = I^2·R ≈ 0.26^2×7.54 ≈ 0.51 W,发热明显,须评估散热条件与温升容限。因此该器件更适合低电流场合或作为滤波元件而非大电流能量传输元件。
  • 饱和电流(Isat = 220 mA):超过该电流时电感量会显著下降,影响滤波与能量储存性能。设计时应留有裕量(通常将工作电流限制在 Isat 以下的某个安全系数内)。
  • 电感公差 ±20%:适用于对精度要求不是特别严格的滤波与去耦场合。

四、典型应用场景

  • 低电流 DC-DC 转换器中的输出滤波元件(小功率设备)。
  • 电源输入滤波、EMI 抑制、音频设备的低频滤波。
  • 便携式测量仪器、传感器电源滤波以及电源噪声抑制。
  • 需要屏蔽以减小磁干扰的高密度 PCB 布局环境。

五、封装与焊接建议

  • 建议按照供应商推荐的回流焊曲线进行焊接(无铅回流峰值常见范围 245–260°C),并尽量减少重流次数与长时间高温暴露。
  • PCB 焊盘设计应保证良好焊点与足够的铜箔散热通道;若长期工作在较高电流或功耗场合,应评估散热增强措施(如加大铜箔面积或加散热孔)。
  • 贴装时避免对器件本体产生机械应力,存放环境避免潮湿及剧烈机械振动。

六、选型与注意事项

  • 若电路工作电流接近或超过 100–200 mA,应重点考虑 DCR 引起的功耗与温升,必要时选择 DCR 更低、额定电流更高的型号。
  • 需考虑饱和裕度:保证实际工作电流远低于 Isat,以维持稳定电感值。
  • 若电感精度或温特性对系统性能关键,应基于实际工作频率与温度做 L、DCR 测试比对。

七、检验与可靠性建议

  • 采购样品时应做焊后电感值及 DCR 测量,确认回流后参数漂移在可接受范围内。
  • 对于最终应用,建议做温升测试、热循环与振动测试以验证长期可靠性。

总结:FNR6028S102MT 以 1 mH 较大电感值与磁胶屏蔽结构适配低电流、低频滤波与 EMI 抑制类应用,但其较高的 DCR 限制了在高电流场合的使用。选型时需综合考量工作电流、功耗与散热条件,并按长江微电官方资料与回流规范执行装配与测试。若需求涉及更高电流或更低损耗,可向供应商咨询同系列低 DCR 或更高额定电流的替代型号。

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