WMSIC Electronic Components

cjiang FXL0420-R22-M FXL0420

ModelFXL0420-R22-M
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 FXL0420-R22-M
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FXL0420-R22-M
Electronic Component
1
Package
SMD
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.297g
Inductor
220nH
Electronic Component
1
Electronic Component
BM0264590519
Current
9.5A
Resistor(DCR)
6.6mΩ
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.

FXL0420-R22-M 产品概述

一、概述

FXL0420-R22-M 是长江微电(cjiang)推出的一款一体成型功率电感,封装为 SMD,外型尺寸约 4.2 × 4.4 mm。标称电感值 220 nH(0.22 µH),公差 ±20%,面向需要大电流、高可靠性的开关电源和功率变换场合设计。

二、主要电气参数

  • 电感值:220 nH ±20%
  • 额定电流(Irms):9.5 A(连续载流能力)
  • 饱和电流(Isat,定义见供应商数据表):12.5 A(电感降至额定值的指定比例时)
  • 直流电阻(DCR):≈6.6 mΩ(低损耗,有利于提高转换效率)
  • 类型:一体成型功率电感(Molded Power Inductor)
  • 封装:SMD,尺寸约 4.2 × 4.4 mm

三、产品亮点

  • 低 DCR(6.6 mΩ):降低铜损,适合高效率设计。
  • 高饱和电流(12.5 A):在瞬态或冲击电流下仍能保持较好电感量,减少磁饱和带来的性能下降。
  • 小型化封装:单位体积内提供较高电流能力,便于 PCB 布局和高密度电源模块集成。
  • 一体成型结构:机械强度高,抗振动、适合自动贴装与回流焊工艺。

四、典型应用场景

  • 同步升降压(buck/boost)开关电源(尤其是点对点 PoL VRM)
  • 车规与工业电源模块、LED 驱动、USB/PD 电源解决方案
  • DC-DC 模块、背光驱动、电池管理系统(BMS)等需要 5–15 A 量级的功率滤波与储能场合

五、PCB 布局与散热建议

  • 将电感尽量靠近开关器件(MOSFET 或功率二极管)与电感电流回路,缩短高频回路面积以减少 EMI。
  • 使用较宽的铜箔和多层过孔(vias)进行热量和电流分散,减小 DCR 对温升的影响。
  • 对于大电流应用,可在电感焊盘下方或周围增加铜箔面积并与散热层相连,以改善热传导。
  • 保持输入/输出电容紧邻电感两端,降低环路阻抗与电压尖峰。

六、选型注意事项

  • 核实 Isat 的定义与测试条件(通常为电感降至初始值某一比例时的电流),并预留安全裕量避免工作在饱和区。
  • 依据系统允许的功耗预算,用 DCR 与额定电流计算铜损(P = I^2·DCR),并评估温升及散热需求。
  • 考虑电感公差 ±20% 对工作频率与纹波电流的影响,必要时选择更精确或更高电感量的型号。
  • 在高温或长时间高载荷场景下,参考厂商数据表的温度漂移与寿命曲线进行设计裕量。

七、封装与采购

FXL0420-R22-M 为 SMD 封装,适合自动贴装与回流焊;通常以卷带(Tape & Reel)方式提供。具体包装方式、回流曲线与可靠性认证信息,请向长江微电或授权经销商索取最新版数据手册与样品,以便验证实际工艺兼容性与长期可靠性。

如需更详细的频率特性、饱和曲线、温升数据或样品支持,建议直接联系长江微电并索取完整技术资料。

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