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BOURNS SRP7028A-100M
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS SRP7028A-100M
- Type
- BOURNS
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRP7028A-100M
- Electronic Component
- 1
- Package
- SMD,7.3x6.6mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.778g
- Inductor
- 10uH
- Electronic Component
- 1
- Electronic Component
- BM0256952459
- Electronic Component
- AEC-Q200
- Current
- 3.5A
- Resistor(DCR)
- 75mΩ
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SRP7028A-100M 产品概述
一、主要参数与性能特点
SRP7028A-100M 为 BOURNS 推出的屏蔽型贴片电感，标称电感值 10 μH，公差 ±20%；额定电流 3.5 A，饱和电流（Isat）6 A，直流电阻（DCR）约 75 mΩ。器件满足车规等级 AEC‑Q200，适用于严苛电气与温度环境。屏蔽结构可有效抑制磁场外泄与 EMI，对布局紧凑的电源模块尤为适合。
二、结构与封装
该款电感为 SMD 封装，外形尺寸为 7.3 × 6.6 mm，适配自动贴装与回流焊工艺。屏蔽式绕组与磁芯设计在保证较高电感量的同时，减小了辐射和对周围元件的干扰。典型制造工艺可提供稳定的电气参数及一致的批次特性，满足汽车级可靠性要求。
三、典型应用场景
- 汽车电子：车载电源模块、仪表、电池管理与辅助电源（满足 AEC‑Q200 要求）
- 开关电源：降压（Buck）转换器输出电感、输入滤波器与电流布线环路抑制
- 工业与消费类电源：LED 驱动、电机驱动供电滤波、通信基站电源模块
- 其他要求高可靠性与低 EMI 的场合
四、使用建议与注意事项
- 热耗管理：按额定电流 3.5 A 工作时，I²·R 损耗约 0.92 W（近似），实际温升与散热条件相关。建议在 PCB 上为电感焊盘增加铜箔或热通孔以改善散热，必要时考虑并联或选型更低 DCR 的替代件。
- 饱和与纹波电流：在可能出现大纹波电流或短时冲击电流的应用中，应确保峰值电流远低于 Isat=6 A，以避免电感量显著下降影响工作。对连续工作建议适当留有裕量（典型留裕 10–30%）。
- 布局建议：将电感尽量靠近开关器件或输出电容，缩短电流回路，减少寄生电感与辐射；保持输入输出走线对称并避免长导线环路。
- 焊接与可靠性：遵循厂商回流焊曲线进行焊接，避免超过推荐温度与多次回流；器件已通过 AEC‑Q200 相关项目验证，适合车规级应用，但仍需在最终系统环境下做可靠性确认。
五、选型提示
若关注更低损耗或更高连续电流能力，可比较相近封装的低 DCR 型号或并联电感方案；若对电感公差或温度稳定性有更高要求，可考虑容差更紧或温度系数更优的规格。SRP7028A-100M 在兼顾体积、耐流与 EMI 抑制方面提供了良好平衡，适合空间受限且要求车规级可靠性的电源设计。
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