WMSIC Electronic Components

cjiang FXL0420-2R2-M FXL0420

ModelFXL0420-2R2-M
PackageSMD,4.2x4.4mm
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 FXL0420-2R2-M
Type
CJIANG
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FXL0420-2R2-M
Electronic Component
1
Package
SMD,4.2x4.4mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.297g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0230864115
Current
4.5A
Resistor(DCR)
58mΩ
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.

FXL0420-2R2-M 产品概述

一、产品简介

FXL0420-2R2-M(品牌:cjiang/长江微电)是一款一体成型表面贴装功率电感,额定电感值为 2.2 µH,公差 ±20%。该器件针对中高电流开关电源设计,额定工作电流 4.5 A,饱和电流(Isat)5 A,直流电阻(DCR)约 58 mΩ。封装为 SMD,外形尺寸 4.2 × 4.4 mm,适合集成度要求较高的功率模块和电源板上使用。

二、主要参数

  • 型号:FXL0420-2R2-M
  • 品牌:cjiang(长江微电)
  • 电感值:2.2 µH ±20%
  • 额定电流(Irms):4.5 A
  • 饱和电流(Isat):5 A
  • 直流电阻(DCR):≈ 58 mΩ
  • 类型:一体成型功率电感(molded)
  • 封装:SMD,尺寸 4.2 × 4.4 mm
  • 典型应用频段:开关电源常用频率范围(几十 kHz 至几 MHz)内性能良好

三、产品特性

  • 高电流承载能力:4.5 A 的额定电流与 5 A 的饱和电流保证器件在中高负载工况下仍能维持稳定电感特性,适合大电流降压/升压转换器。
  • 低 DCR:约 58 mΩ 的直流电阻有利于降低导通损耗,提高转换效率并减少发热。
  • 一体成型结构:封装紧凑、机械强度高,适合自动贴片生产和可靠性要求较高的场合。
  • 表面贴装封装:便于高速贴装与回流焊工艺,利于小型化设计。

四、典型应用场景

  • 同步降压(Buck)/ 升压(Boost)DC-DC 开关稳压器
  • 电源滤波与储能(输出滤波电感)
  • 电机驱动电源和功率模块
  • 通信设备、服务器电源、工业控制与车载非关键辅助电源(需按车规确认)
  • 电池管理与便携设备电源解决方案

五、选型与使用建议

  • 电流裕量:选择时建议考虑实际峰值电流与纹波电流,避免长期运行靠近 Isat;一般建议额定电流留有 20%~30% 余量以降低饱和风险与发热。
  • 热设计:DCR 导致的 I²R 损耗会产生热量,板上需预留适当散热路径(铜箔面积、过孔),并在布局上避免热源聚集。
  • 开关频率匹配:若工作在较高频率(>1 MHz)时,需关注器件的频率特性与核心损耗,必要时进行实验验证。
  • 电感电流纹波:根据电源拓扑计算电感值和纹波电流,确保在目标负载下电感不会进入深度饱和,影响稳定性。

六、封装与焊接建议

  • 采用标准回流焊工艺,遵循厂商给出的回流曲线(若无则按通用无铅回流曲线处理),避免超出温度极限。
  • 贴片焊盘设计参考 4.2 × 4.4 mm 外形,焊盘应保证良好焊锡覆盖与机械支撑;多层板可增加热铜与过孔以改善散热。
  • 储存与清洗:若使用含水率敏感工艺,建议按潮湿敏感等级(MSL)管理;洗板时避免使用强腐蚀性溶剂直接作用于封装表面。

七、注意事项与可靠性

  • 饱和与磁滞:在接近或超过 Isat 时电感值会显著下降,可能导致输出电压波动或控制器保护动作;设计时应避开该工况。
  • 环境与老化:长期高温或过载会加速绕组和封装劣化,应进行热循环和老化测试以验证可靠性。
  • 兼容性验证:在关键或严苛应用(如车规医规)中,需进行 EMI、热沉降、振动冲击等可靠性认证和整机级别测试。

总结:FXL0420-2R2-M 是一款适合中高电流开关电源与功率滤波场景使用的紧凑型 SMD 功率电感,具有较好的电流承载能力与较低 DCR。为保证长期稳定性,建议在选型与 PCB 布局时考虑电流裕量、散热与饱和特性,并在目标工作频率/温度下做实测验证。若需进一步的电气特性曲线、回流曲线或样品参数,请联系供应商或参考长江微电的官方资料。

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