WMSIC Electronic Components

cjiang FXL0624-R22-M FXL0624

ModelFXL0624-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 FXL0624-R22-M
Type
SMD
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FXL0624-R22-M
Electronic Component
1
Package
SMD
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.76g
Inductor
220nH
Electronic Component
1
Electronic Component
BM0264590580
Current
21A
Resistor(DCR)
3mΩ
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-R22-M 产品概述

一、概述

FXL0624-R22-M 是长江微电(cjiang)出品的一体成型功率电感,标称电感值 220 nH(0.22 μH),公差 ±20%,为表面贴装(SMD)器件,封装尺寸约 6.6 × 7 mm。该器件针对大电流开关电源和功率滤波场合优化,额定电流(Irms)21 A、饱和电流(Isat)34 A,直流电阻仅 3 mΩ,适合对电流承载能力与低损耗有较高要求的应用场景。

二、主要特性

  • 电感值:220 nH,公差 ±20%
  • 额定电流:21 A(连续工作参考值)
  • 饱和电流:34 A(磁芯开始明显降感时参考)
  • 直流电阻:3 mΩ(低 DCR 有利于减少铜损)
  • 类型:一体成型功率电感,SMD 安装,6.6×7 mm 封装
  • 适用:大电流降压转换器、输出滤波和电源输入去耦

三、典型电气性能与影响因素

该器件低 DCR 与高 Isat 特性使其在高电流、低压差的 DC-DC 降压(buck)输出滤波中表现优越。需注意:

  • 饱和特性:当峰值电流接近或超过 34 A 时电感量会显著下降,建议在设计中留出裕量(例如峰值不超过 Isat 的 70–80%)以避免性能失真。
  • 热升与电阻变化:长期大电流工作会导致温升,从而影响 DCR 与有效电流能力,设计时应考虑散热与焊盘导热。
  • 高频特性:高开关频率下磁芯损耗与寄生电容、寄生电感影响转换效率,需与系统频率一并评估。

四、典型应用场景

  • 同步整流降压转换器输出滤波
  • 多相点对点电源(VRM)电感
  • 汽车电子、工控和通信电源模块
  • 大功率 LED 驱动与伺服驱动供电滤波

五、选型与使用建议

  • 电流裕量:对连续工作电流按 80–90% 的裕量选型;对脉动峰值应低于 Isat 建议值以防饱和。
  • 温升与散热:在大电流应用中,优化 PCB 铜皮面积与过孔散热,尽量靠近热源放置。
  • 频率匹配:结合开关频率选择电感值,确保纹波电流与电压满足系统要求;必要时在仿真中考察磁芯损耗。
  • 测试测量:测量 DCR 时采用四线(开尔文)接法,测量高频特性时注意接地回路与探头寄生。

六、封装与焊接注意事项

  • 封装为 SMD,一体成型结构,建议按厂商的回流焊温度曲线进行焊接。
  • 焊盘设计尽量增大铜箔面积并加过孔以利散热,焊接后检查焊点润湿情况与元件平整度。
  • 对于多次回流流程,避免超温或长时加热以防结构或性能退化。

七、可靠性与测试建议

  • 通过温度循环、机械振动和冲击测试验证在目标应用环境下的可靠性。
  • 在样机阶段对电感进行长时间额定电流老化试验,监测 DCR、感量漂移和磁饱和行为。
  • 与供应商确认具体的存储、回流曲线和相关可靠性数据(如生命周期、焊接规范)以保证量产一致性。

总结:FXL0624-R22-M 以其 220 nH、低 DCR 和高电流能力,适合需要大电流滤波与低损耗的开关电源场合。设计时重视电流裕量、散热与饱和特性评估,可获得稳定可靠的系统性能。若需更详细的温升曲线、频率响应或回流焊工艺参数,建议向长江微电索取完整数据手册。

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