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Sunlord SWPA5020S4R7MT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Sunlord SWPA5020S4R7MT
- Type
- SUNLORD
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SUNLORD
- Electronic Component
- SWPA5020S4R7MT
- Electronic Component
- 1
- Package
- SMD,5x5mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.008g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0249718062
- Current
- 2.2A
- Resistor(DCR)
- 74mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 2500
- and Current(Isat)
- 2.7A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SWPA5020S4R7MT — 顺络（Sunlord）功率电感产品概述
一、产品简介
SWPA5020S4R7MT 是顺络（Sunlord）推出的一款表面贴装功率电感，额定电流为 2.2A，饱和电流（Isat）为 2.7A，标称电感值 4.7μH，公差 ±20%，直流电阻（DCR）约为 74 mΩ。封装为 SMD，外形尺寸 5×5 mm，针对开关电源与功率管理场合进行了性能与可靠性优化。
二、主要电气参数
- 电感值：4.7 μH（±20%）
- 额定电流（Ir）：2.2 A（可长期通过且满足温升限制）
- 饱和电流（Isat）：2.7 A（在此电流下电感值明显下降，需预留裕量）
- 直流电阻（DCR）：74 mΩ（较低的 DCR 有利于降低功率损耗与温升）
- 封装：SMD，5×5 mm（适合自动化贴装与高密度 PCB 布局）
三、特性与优势
- 小型化封装：5×5 mm SMD 形式，便于高密度布板与自动化生产。
- 低 DCR：74 mΩ 的直流电阻在同规格元件中有利于提高能效、降低热耗散。
- 较高饱和电流：2.7 A 的 Isat 为短时峰值电流提供保护空间，适用于脉冲负载场合。
- 稳定性：顺络作为成熟元件厂商，产品在工艺一致性与批次稳定性方面具备优势（具体可靠性指标请参见厂家 datasheet）。
四、典型应用
- DC-DC 降压（buck）转换器功率电感
- 电源输入/输出滤波器（用于降低开关纹波与 EMI）
- 移动电源、便携式设备电源管理模块
- 嵌入式系统与工业电子的稳压与滤波电路
五、设计与选型建议
- 留有裕量：工作电流尽量低于额定电流 2.2 A，并确保峰值电流低于 Isat 2.7 A，以避免磁饱和导致电路性能下降。
- 热管理：尽量靠近散热元件或留出散热通道，注意 PCB 铜箔与散热层的布局以降低温升。
- 测试条件：实际电感值与损耗受测试频率、直流偏置与温度影响，推荐在目标应用条件下做电路级测试。
- 焊接工艺：采用推荐的回流曲线与焊盘设计，注意避免过长加热或机械应力导致的封装损伤。
六、可靠性与品质控制
顺络产品一般通过常见的可靠性测试（如温度循环、湿热、振动等），但不同系列测试细节与认证可能不同。选型前建议查阅 SWPA5020S4R7MT 的官方资料与样片测试报告，以确认满足目标应用的环境与寿命要求。
七、总结
SWPA5020S4R7MT 是一款面向中小电流开关电源与滤波用途的 5×5 mm SMD 功率电感，具有 4.7 μH 电感值、2.2 A 额定电流与 2.7 A 饱和电流、74 mΩ 低 DCR 等特点。适用于追求体积紧凑且效率要求较高的电源设计。最终选型请结合具体电路工作点、温度环境与 PCB 布局，并以顺络官方 datasheet 为准。
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