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PSA MCS25GC-4R7MMP MCS25GC
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- PSA MCS25GC-4R7MMP
- Type
- PSA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PSA
- Electronic Component
- MCS25GC-4R7MMP
- Electronic Component
- 1
- Package
- 1008
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.04g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0264906337
- Current
- 1.22A
- Resistor(DCR)
- 220mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- and Current(Isat)
- 1.62A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MCS25GC-4R7MMP 产品概述
一、产品简介
MCS25GC-4R7MMP 为 PSA(信昌电陶) 出品的功率贴片电感，标称电感值 4.7µH，公差 ±20%，封装规格 1008，面向中低功率电源滤波与储能应用。额定电流为 1.22A，饱和电流（Isat）为 1.62A，直流电阻（DCR）约为 220mΩ，适用于空间受限但要求一定电流能力的电源设计场合。
二、主要电气参数与意义
- 电感值：4.7µH ±20%，决定滤波和储能能力，应结合电路工作频率与纹波电流选型。
- 额定电流：1.22A，为长期允许通过的电流值，应在该值以下工作以保证温升与寿命。
- 饱和电流（Isat）：1.62A，超过此电流水平时电感值会迅速下降，影响输出稳定性与滤波性能。
- 直流电阻（DCR）：220mΩ，直接影响铜损，功耗随 I^2·DCR 增加，在高电流场合需重点评估发热与效率。
三、适用场景与电路应用
MCS25GC-4R7MMP 适用于：
- 降压（Buck）/升压（Boost）DC-DC 转换器的储能电感；
- 电源输入滤波、输出纹波抑制；
- 各类电源管理模块（PMIC）、消费电子、通信设备与工业控制中低功率电源链路。
在设计中常见拓扑为开关节点至输出电容之间的储能电感，需与电容、开关频率和纹波电流匹配。
四、设计与使用注意事项
- 电流选型：实际工作电流应低于额定电流并远离饱和电流，以避免电感值衰减与磁饱和导致输出上升或纹波增大。
- 损耗与温升评估：采用 P = I_rms^2 × DCR 计算铜损，若工作电流接近额定值，220mΩ 会带来可观发热，应考虑散热与PCB铜厚。
- 直流偏置效应：铁氧体或磁粉材料会因直流偏置降低有效电感，建议在目标电流下测量或参考器件曲线（如有）进行校核。
- 焊接与封装：1008 SMD 封装，兼容常规回流焊工艺，避免过高回流峰值温度或重复热循环影响可靠性。
- 储存与洗板：按常规元件防潮与清洗工艺处理，避免机械冲击与强酸碱清洗液长时间浸泡。
五、选型建议与替代考虑
选型时应综合电感值、直流电阻与电流能力：若需更低损耗可优先考虑 DCR 更低或更大截面线圈的型号；若工作电流较高则选择额定与饱和电流更高的器件。对空间更为紧张的设计，可比较同系列不同封装的尺寸/电气折中。
六、总结
MCS25GC-4R7MMP（PSA）是一款面向中低功率电源应用的 4.7µH 功率电感，具有明确的额定电流与饱和电流参数，适合用于开关电源滤波与储能场合。使用时需关注 DCR 导致的功耗与磁饱和效应，通过合理的电流余量与热设计可以实现稳定可靠的电源性能。
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