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cjiang FTC404020S2R2MGCA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FTC404020S2R2MGCA
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FTC404020S2R2MGCA
- Electronic Component
- 1
- Package
- SMD,4.1x4.1mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.465g
- Inductor
- 2.2uH
- Electronic Component
- 1
- Electronic Component
- BM0258760349
- Current
- 5.5A
- Resistor(DCR)
- 36mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- and Current(Isat)
- 9.5A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FTC404020S2R2MGCA 产品概述
一、主要参数
FTC404020S2R2MGCA（品牌：cjiang/长江微电）是一款表面贴装功率电感，核心电气指标如下：
- 标称电感值：2.2 μH（公差 ±20%）
- 额定电流：5.5 A（连续载流限定）
- 饱和电流 Isat：9.5 A（电感下降到额定值一定比例时的近似饱和点）
- 直流电阻 DCR：36 mΩ
- 封装/尺寸：SMD，尺寸约 4.1 × 4.1 mm
二、产品特点
- 低 DCR：36 mΩ 的直流电阻在同等尺寸下有利于降低直流损耗与温升，适合较高效率的电源设计。
- 高电流能力：5.5 A 的额定电流与 9.5 A 的饱和电流保证在中高电流工况下保持较好的磁性能和线性范围，有利于降压转换器等应用。
- 紧凑封装：4.1×4.1 mm 的 SMD 外形有利于高密度布局，适合板上空间受限的电源模块。
- 通用公差：±20% 的电感公差为成本与可得性做了平衡，设计时需考虑容差对谐振/滤波频率的影响。
三、典型应用场景
- 同步整流升/降压（buck/boost）转换器的储能电感
- 多相电源与点对点电源模块
- 输入/输出滤波器，用于抑制开关噪声与电流纹波
- 车载电子、工业电源和通信设备中需要中等电流处理的电源子系统
四、布局与散热建议
- 走线尽量短且宽，减少寄生电阻与电感，靠近 MOSFET 与电容放置以减小环路面积。
- 对大电流路径采用加焊盘与过孔（via）来引导热量至内层或地层，提高热散能力。
- 若在高功率密度环境工作，应预留热测试点并评估电感实际温升，确保工作温度在元件允差范围内。
五、选型与使用要点
- 额定电流（5.5 A）是热极限和长期稳定工作下的参考，短时通过可接近 Isat，但应避免长期在饱和区域工作以防 inductance 急剧下降。
- 设计时为避免磁饱和与性能退化，建议在最大纹波电流与直流偏置下留有裕量（通常按经验选择 20–40% 的安全系数，具体取决于系统要求）。
- ±20% 公差会影响滤波与谐振点，关键滤波回路应在布局与调试阶段验证频率特性。
六、可靠性与焊接建议
- 采用标准无铅回流焊工艺进行贴装，遵循元器件厂商推荐的温度曲线（如需精确信息，请参考长江微电的技术资料）。
- 储存与搬运注意防潮与机械压迫，贴片电感对冲击和弯曲敏感，焊接后建议做温升与电气老化验证。
七、结论与建议
FTC404020S2R2MGCA 以 2.2 μH、低 DCR 和较高电流能力为主要卖点，适合中高电流的 DC-DC 电源与滤波应用。在选用时应结合系统纹波电流、热预算和电感公差做整体评估；在关键设计中建议通过样片测量确认实际电感随直流偏置与温度的变化，并遵循厂方资料的装配与检验规范。如需更详细的电气曲线、温升数据与封装尺寸图，建议向长江微电索取完整数据手册或样品测试。
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