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cjiang FTC252012S4R7MBCA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- cjiang FTC252012S4R7MBCA
- Type
- CJIANG
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJIANG
- Electronic Component
- FTC252012S4R7MBCA
- Electronic Component
- 1
- Package
- SMD,2x2.5mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.057g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0233263552
- Current
- 1.8A
- Resistor(DCR)
- 150mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- and Current(Isat)
- 2.4A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FTC252012S4R7MBCA 产品概述
一、产品简介
FTC252012S4R7MBCA 是长江微电（cjiang）推出的一款表面贴装功率电感，标称电感值为 4.7µH，公差 ±20%。该器件采用紧凑的 SMD 封装（2.0 × 2.5 mm），适配空间受限的移动电源、DC-DC 转换器与电源滤波场合。额定持续电流为 1.8A，饱和电流（Isat）为 2.4A，直流电阻（DCR）约为 150 mΩ，综合性能适合中低功率开关电源设计。
二、主要特性
- 电感值：4.7µH，公差 ±20%
- 封装尺寸：SMD，2.0 × 2.5 mm（小型化设计，便于高密度 PCB 布局）
- 额定电流：1.8A（连续工作限值）
- 饱和电流（Isat）：2.4A（超过该值电感将显著下降）
- DCR：约 150 mΩ（影响功耗与发热）
- 品牌：cjiang（长江微电）
三、电气与性能说明
本器件在额定电流（1.8A）下可保证长期稳定工作；在短时过载或启动冲击时可承受至 2.4A 的饱和电流，但当电流接近或超过 Isat 时，电感量会明显降低并可能引起电路性能异常。150 mΩ 的直流电阻意味着在大电流下会有一定的 I2R 损耗与温升，设计时应考虑热管理与电流余量。
四、典型应用场景
- 同步/非同步升降压（buck/boost）电源的储能电感
- 输入/输出 EMI 滤波器
- 电源模块、便携设备电源管理
- 工业控制与通信设备中小功率开关电源
五、设计与使用建议
- 布局：将电感尽量靠近开关元件或负载，输入与输出走线最短以减小寄生电感与噪声辐射。
- 散热：考虑 DCR 产生的热量，避免把敏感器件靠近，并保证 PCB 有足够铜面积或热扩散通道。
- 电流余量：为保证长期可靠，建议工作电流低于额定 1.8A（建议留 10–20% 余量），频繁靠近 Isat 会加速性能退化。
- 饱和：在对电感量稳定性要求高的拓扑（如电流模式控制）中，尽量避免在饱和区工作。
六、封装、焊接与可靠性
- 焊接：兼容无铅回流焊工艺，建议参照常见无铅回流曲线，峰值温度不超过 260°C，推荐回流曲线以保护磁芯与粘接材料。
- 机械：小型磁性元件，避免在贴装与使用过程中受到过大机械冲击或重压。
- 存储：避免潮湿与高温环境，长期存放建议使用干燥包装并在规定时间内回流焊接。
七、选型要点与替代考虑
选择时应综合电感值、额定电流、DCR 与封装尺寸。若设计需要更低 DCR 或更高电流能力，应考虑同类更大尺寸或铁粉/金属氧化物磁芯的功率电感；若空间非常受限，可在保证电流和损耗的前提下寻找等效封装与规格的替代型号。
如需器件数据表、回流焊曲线或 PCB 封装建议图，可联系供应商或长江微电获取更详尽的应用资料。
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