WMSIC Electronic Components

cjiang FXL0624-3R3-M FXL0624

ModelFXL0624-3R3-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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
cjiang FXL0624-3R3-M
Type
CJIANG
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FXL0624-3R3-M
Electronic Component
1
Package
SMD
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.77g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0264799435
Current
5.5A
Resistor(DCR)
39mΩ
Electronic Component
Electronic Component
Electronic Component
1500

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

FXL0624-3R3-M 产品概述

一、产品简介

FXL0624-3R3-M 是长江微电(cjiang)推出的一款一体成型功率电感,电感值为 3.3 μH,容差 ±20%,设计用于SMD贴片工艺,外形尺寸为 6.6 × 7.0 mm。该器件面向高电流、空间受限的电源设计场景,具有较高的饱和电流和较低的直流电阻,适合用于开关电源滤波、降压模块(buck)、点对点供电等功率回路。

二、主要参数(核心规格)

  • 型号:FXL0624-3R3-M
  • 品牌:cjiang(长江微电)
  • 电感值:3.3 μH ±20%
  • 额定电流(Irated):5.5 A(持续工作电流)
  • 饱和电流(Isat):10 A(电感显著降额前的短时冲击能力)
  • 直流电阻(DCR):39 mΩ
  • 封装形式:SMD,一体成型电感
  • 外形尺寸:6.6 × 7.0 mm
  • 类型:功率电感 / 扼流圈

三、性能特点与优势

  • 高电流承载:额定电流 5.5 A,饱和电流可达 10 A,能够满足中大电流开关电源和瞬态电流冲击的需求。
  • 体积小巧:6.6×7mm 的紧凑封装,利于在有限空间内实现高密度布局。
  • 一体成型结构:结构稳定,适合自动化贴装和回流焊工艺,机械强度高,可靠性好。
  • 低直流电阻:39 mΩ 的 DCR 在同类功率电感中处于合理区间,有助于降低 I2R 损耗,提高系统效率(注:在额定电流下仍会产生显著发热,需注意热管理)。
  • 通用兼容性:适用于多种拓扑的稳压与滤波电路,易于替换和设计集成。

四、典型应用场景

  • 开关稳压器(DC-DC)中的输出侧电感(降压/升压/同步整流)
  • 点对点电源(POL)模块
  • LED 驱动与照明电源滤波
  • 通信与消费电子的电源管理(路由器、机顶盒、工业控制板等)
  • 需要承受短时大电流脉冲的功率模块

五、封装与焊接建议

  • 封装:SMD 一体成型,请根据厂商提供的 PCB 尺寸图设计焊盘。
  • 回流焊:推荐采用标准无铅回流曲线(参考 IPC/JEDEC J-STD-020),但请以厂商最新回流温度曲线为准。
  • 布局:尽量将电感置于与开关器件、电容等元件的最短电流回路路径上,缩短走线、降低寄生阻抗和 EMI。
  • 散热:虽然电感本身不需要额外散热片,但在高平均电流工况下需预留足够铜箔面积和通孔以利于热量分布和散发。

六、选型与设计注意事项

  • 电流裕量:额定电流 5.5 A 为持续工作参考值,建议在长期运行下保留裕量(例如 20%~30%),以避免长期过热和磁芯偏磁。饱和电流 10 A 可应对短时浪涌,但并不代表可长时间运行在此电流。
  • 损耗计算:以额定电流 5.5 A 和 DCR 39 mΩ 为例,直流损耗约为 P = I^2·R ≈ 1.18 W,需考虑温升和效率影响。实际损耗还包括交流磁芯损耗,受频率与纹波电流影响较大。
  • 线圈饱和与电感衰减:在靠近 Isat 的电流时,电感量会下降,设计时需评估电感在最大纹波与峰值电流下的有效值,以保证电路稳定性。
  • EMI/滤波:若用于 EMI 抑制或滤波,需评估与系统其他元件的配合(电容、布局)以避免共振问题。
  • 环境与可靠性:若用于高温或特殊环境(汽车、航天等),建议向厂商确认是否有对应认证或扩展温度等级型号。

七、质量与测试建议

  • 采购前建议索取并审核厂商的数据手册、样品和可靠性报告(温升曲线、电感随电流变化曲线、热循环与振动测试等)。
  • 在实际产品验证中进行热成像检测、长期老化和电感值随温度/电流的变化测试,确保在目标工况下稳定可靠。

总结:FXL0624-3R3-M 以其 3.3 μH 的电感值、较高的额定与饱和电流以及紧凑的 SMD 封装,适用于中高电流的开关电源与点负载方案。设计时需关注实际工作电流与损耗、热管理以及饱和特性,合理预留裕量并配合 PCB 布局与滤波元件,以发挥最佳性能。如需最终电气与机械数据,请参阅长江微电官方数据手册或联系厂商技术支持。

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