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FXL1040-220-M 是长江微电(cjiang)推出的一款面向开关电源与功率管理的表面贴装功率电感器。该器件为一体成型(molded)结构,尺寸为 SMD 11.5 × 10.0 mm,旨在在紧凑封装内提供稳定的22 μH 电感量与较高的电流承载能力,适合用于点对点(point-of-load)变换器、LED 驱动和电源滤波等高电流场合。
说明:DCR 影响导通损耗和效率,按 P_loss = I^2 × DCR 估算,若连续直流电流为额定 5 A,则导通损耗约为 1.65 W,设计时需考虑热管理与温升。
该器件采用一体成型封装,具有较好的机械强度与外部保护,便于自动贴装与回流焊工艺。标准 SMD 尺寸(11.5 × 10.0 mm)适合多数中等功率点载场合。建议在正式生产前向供应商索取完整尺寸图与推荐焊盘(footprint)以确保贴装与焊接可靠性。
当系统对效率要求更高且允许更大体积时,可选择 DCR 更低或体积更大的电感以降低导通损耗;若空间受限且电流需求较高,可考虑并联相同或相近参数的电感(需注意磁耦与分流不均问题)。选择时除了标称电感值,应重点关注 DCR、Isat、温升测试曲线以及频率相关的复杂阻抗特性。
FXL1040-220-M 由长江微电(cjiang)提供,标准器件可通过代理商或直接向厂家订购。采购前建议索取完整数据手册、典型频率响应(L vs. I、L vs. f、温度系数)、包装信息与样品以完成设计验证。对于大批量应用,可咨询供应商的可靠性测试报告与长期供货能力。
总结:FXL1040-220-M 是一款面向中等功率、需要较高直流电流承载的 SMD 一体成型功率电感,适合用于各类开关电源与滤波场景。设计时需综合考虑 DCR 导通损耗、饱和裕度与散热方案,以确保长期稳定运行。若需详细的电气特性曲线或封装图纸,请联系厂家获取最新数据手册。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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