WMSIC Electronic Components

cjiang FNR6020S100MT

ModelFNR6020S100MT
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 FNR6020S100MT
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6020S100MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.42g
Inductor
10uH
Electronic Component
1
Electronic Component
BM0264754145
Current
1.8A
Resistor(DCR)
137mΩ
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.

FNR6020S100MT 产品概述

FNR6020S100MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率SMD电感,额定电感值为 10 μH,精度 ±20%,面向中小功率开关电源与电源滤波场景。器件采用表面贴装封装(SMD),外形紧凑(6×6 mm),具有较好的屏蔽性能和磁通稳定性,适合对体积、成本和电流承载有平衡要求的电源设计。

一、主要特性

  • 电感值:10 μH ±20%
  • 额定电流(Irated):1.8 A(连续工作建议按额定值的适当留余)
  • 饱和电流(Isat):2.1 A(磁芯开始出现明显电感衰减的电流)
  • 直流电阻(DCR):137 mΩ(典型值)
  • 类型:磁胶屏蔽电感(低磁通外泄、针对贴片电源设计)
  • 封装:SMD,规格标注为 6×6 mm,便于高密度PCB布局

二、电气与热特性要点

  • 峰值/连续电流:器件的额定电流 1.8 A 是基于正常温升和可靠性考虑的连续承载能力;当工作电流接近或超过 Isat(2.1 A)时,电感量会显著降低,可能引起开关电源环路参数偏移或输出纹波上升。建议长时间连续工作时留有裕量(通常建议≤额定电流的 80% 左右,即约 1.4 A 左右),以避免磁芯饱和和过热问题。
  • 铜损与功耗估算:直流损耗可由 P = I^2 × DCR 近似计算。在额定电流 1.8 A 下,P ≈ 1.8^2 × 0.137 ≈ 0.44 W。此功耗会引起器件温升,设计时需考虑散热路径和周边元件布局。
  • 高频特性:作为磁胶屏蔽功率电感,适用于典型开关电源频段(从几十 kHz 到若干 MHz 级别)的储能与滤波,但具体的阻抗频率响应与损耗需结合频率特性曲线评估实际应用。

三、典型应用场景

  • 降压(Buck)/ 升压(Boost)等中低功率开关电源输出滤波与能量储存
  • 电源管理模块(PMIC)中的电感器件
  • LED 驱动与背光电源滤波
  • 工业控制、电池管理与便携设备的电源前端滤波
  • 对磁干扰有一定控制要求的场合(屏蔽结构降低外泄磁通)

四、选型与使用建议

  • 饱和裕度:若工作环境或负载存在较大电流波动,应选择 Isat 明显高于最大瞬态电流的器件或采用多串并联方案,避免工作点进入饱和区。
  • 热管理:鉴于较高的 DCR,设计时需关注电感附近的散热条件,必要时在 PCB 上增加铜箔面积或通过散热结构降低稳态温升。
  • 电流纹波:在高纹波电流下,交流损耗会增加,建议在选型时同时考虑交流损耗和直流损耗对温升的共同影响。
  • 环境与可靠性:留意工作温度范围与长期热循环导致的电感值偏移,关键应用建议做温升与寿命验证。

五、封装与焊接注意事项

  • 采用 SMD 封装,适合常规回流焊装流程。建议遵循通用无铅回流曲线和 PCB 组装行业规范(IPC/JEDEC)进行焊接,避免过长高温曝露以防材料性能退化。
  • 在进行回流和清洗工艺评估时,关注粘接材料(磁胶)对溶剂和温度的耐受性。
  • PCB 布局:建议尽量减小电感与热源(如功率MOSFET、整流器)之间的距离,合理安排地线和电源平面,既利于散热也可以降低电磁耦合。

六、测试与可靠性建议

  • 在样机阶段,进行:温升测试、直流电阻和电感值在不同电流下的测量、频率特性测试以及长期高温老化测试。
  • 关注电感在高电流短路或过冲情况下的恢复能力,验证饱和后返回到常态的行为是否稳定。
  • 对电磁兼容(EMC)敏感设计,建议配合滤波网络和屏蔽策略共同验证系统级辐射与传导干扰性能。

总结:FNR6020S100MT(10 μH,±20%,1.8 A,Isat 2.1 A,DCR 137 mΩ,6×6 mm)是一款面向中小功率电源和滤波应用的磁胶屏蔽 SMD 功率电感。使用时需注意电流与温升的匹配、饱和裕度与热管理,按照应用场景进行样机验证与可靠性测试,以确保在系统中稳定可靠运行。

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