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cjiang FXL0412-3R3-M FXL0412
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FXL0412-3R3-M
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FXL0412-3R3-M
- Electronic Component
- 1
- Package
- SMD,4.2x4.4mm
- Type
- Inductor
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.199g
- Inductor
- 3.3uH
- Electronic Component
- 1
- Electronic Component
- BM0264590590
- Current
- 2A
- Resistor(DCR)
- 165mΩ
- 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.
FXL0412-3R3-M 产品概述
一、概述
FXL0412-3R3-M 是长江微电（cjiang）推出的一款一体成型功率电感，封装为 SMD，尺寸约 4.2×4.4mm。额定电感 3.3µH（容差 ±20%），额定电流 2A，饱和电流（Isat）3A，直流电阻（DCR）约 165mΩ。该元件针对开关电源与电源滤波场景优化，兼顾体积、散热与电流承载能力，适合空间受限且功率密度中等的应用。
二、主要特性
- 电感值：3.3µH ±20%
- 额定电流：2A（推荐连续工作电流）
- 饱和电流：3A（在此电流下电感量显著下降）
- DCR：约 165mΩ（典型值，影响铜损与发热）
- 封装：SMD 一体成型，尺寸 4.2×4.4mm
- 适用于回流焊工艺，符合常见环保与可靠性要求
三、典型应用
- 降压（Buck）开关稳压器的电感元件
- 电源模块与稳压模块的滤波与储能
- DC-DC 转换器、便携式设备电源管理
- EMI 抑制与电源输入滤波
四、选用与布局建议
- 若电路最大连续电流接近或超过 2A，应优先考虑更高额定电流或并联方案，避免长期过热导致性能下降。
- 在实际应用中，电感的有效值会随直流偏置下降，靠近饱和电流时电感量显著减少，须留有裕量。
- DCR 导致的铜损不可忽视：在 2A 条件下，理论损耗约 I^2·R = 0.66W，需评估散热与温升。
- 布局上将电感放置在开关器件附近，走短宽的电流回流路径，输入/输出电容尽量靠近器件以减小寄生感抗。
五、可靠性与焊接
- 适用于标准无铅回流焊工艺（请参考厂商的回流曲线和最大温度限制）。
- 建议在合理的温升范围内长期工作，避免超过额定温度导致磁芯退磁或黏结失效。
- 存储时防潮包装管理有利于保证焊接质量与元件长期可靠性。
六、订购与型号说明
- 型号：FXL0412-3R3-M，品牌：cjiang（长江微电）
- 采购时请确认完整的规格书（Datasheet）、性能曲线（直流偏置 vs 电感、温升曲线等）和样片测试。
- 如需更高电流能力或更低 DCR，可咨询厂商的相邻系列型号或定制选项。
总结：FXL0412-3R3-M 为中小功率开关电源与滤波应用提供了体积小、封装稳定的电感解决方案。在选型时应重点关注额定电流与饱和裕量、DCR 带来的功耗影响以及实际 PCB 布局与散热条件，以保证长期稳定工作。若需完整数据表或样品验证，建议向长江微电索取最新 Datasheet。
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