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BOURNS SRP3020TA-4R7M
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS SRP3020TA-4R7M
- Type
- BOURNS
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRP3020TA-4R7M
- Electronic Component
- 1
- Package
- SMD,3.2x3.5mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.276g
- Inductor
- 4.7uH
- Electronic Component
- 1
- Electronic Component
- BM0230608344
- Electronic Component
- AEC-Q200
- Current
- 2.6A
- Resistor(DCR)
- 172mΩ
- 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.
SRP3020TA-4R7M 产品概述
一、概述
SRP3020TA-4R7M 是 BOURNS 推出的一款屏蔽绕线功率电感，标称电感值 4.7µH，公差 ±20%，面向车规及工业级电源应用。产品为 SMD 封装（3.2×3.5 mm），额定电流 2.6A，饱和电流（Isat）3.5A，直流电阻（DCR）最大 172 mΩ，并符合 AEC-Q200 车规等级，适合对可靠性和温度循环有较高要求的系统。
二、主要电气性能
- 电感值：4.7 µH ±20%
- 额定电流（Irms）：2.6 A（在规定温升与频率下长期工作）
- 饱和电流（Isat）：3.5 A（磁芯退磁或电感下降到额定值一定比例时的参考）
- 直流电阻（DCR）：最大 172 mΩ（影响功耗与发热）
- 结构：屏蔽绕线（降低磁串扰）
- 封装：SMD，尺寸 3.2 × 3.5 mm
- 质量等级：AEC-Q200（符合车规可靠性要求）
三、产品优势
- 屏蔽设计降低外泄磁通，可并近敏感器件布置，利于高密度布局。
- 绕线工艺保证高电流承载与稳定的电感特性，Isat 3.5A 提供较大的瞬态裕量。
- 小尺寸（3.2×3.5 mm）适合空间受限的电源模块与抑制器件。
- 车规等级认证适配汽车电子、ADAS、电源总成等高可靠场景。
四、典型应用
- 开关电源（降压/升压）电感（尤其在中功率、空间受限场景）
- 电源滤波与电流取样网络，抑制开关噪声与纹波
- 汽车电子与车载充电系统的磁性元件
- 工业控制、电信设备及消费类便携设备的电源管理
五、设计与使用注意事项
- 考虑 DCR 对效率与温升的影响：172 mΩ 在高电流下会产生显著 I²R 损耗，设计时需估算发热并留有散热空间。
- 留有饱和裕量：连续工作电流应以额定电流为基准，瞬态峰值应低于 Isat，以免电感值骤降影响系统稳定。
- 布局建议：输入/输出回路应尽量缩短，电感与旁路电容贴近，利用屏蔽特性可减小对邻近信号线的干扰。
- 焊接与可靠性：遵循厂商推荐回流温度曲线进行焊接，避免过热导致性能退化；车规应用建议进行适当的温度与机械试验验证。
- 噪声与频率响应：绕线与屏蔽虽能降低外泄磁场，但在高频下电感自损耗与寄生参数需在仿真/测试中验证。
总结：SRP3020TA-4R7M 以其屏蔽绕线结构、小尺寸与车规认证，为需要在受限空间内实现中低功率稳健电源滤波与能量储存的设计提供了可靠选择。选型时需综合评估 DCR 损耗、饱和裕量与热管理策略以保证长期可靠运行。
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