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BOURNS SRP7028A-330M
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS SRP7028A-330M
- Type
- BOURNS
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRP7028A-330M
- Electronic Component
- 1
- Package
- SMD,7.3x6.6mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.864g
- Inductor
- 33uH
- Electronic Component
- 1
- Electronic Component
- BM0256952453
- Electronic Component
- AEC-Q200
- Current
- 2A
- Resistor(DCR)
- 200mΩ
- 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-330M 产品概述
一、产品简介
SRP7028A-330M 为 BOURNS 推出的车规级功率电感器，额定电流 2A，电感值 33µH（公差 ±20%），饱和电流 (Isat) 2.5A，直流电阻 200mΩ。SMD 封装，外形尺寸 7.3 × 6.6 mm，符合 AEC‑Q200 车规可靠性要求，适用于对稳态与瞬态电流有较高要求的电源滤波与储能场合。
二、主要参数
- 电感值：33 µH ±20%
- 额定电流：2.0 A
- 饱和电流（Isat）：2.5 A
- 直流电阻（DCR）：约 200 mΩ
- 车规等级：AEC‑Q200（汽车应用可靠性认证）
- 封装：SMD，尺寸 7.3 × 6.6 mm
- 品牌：BOURNS
三、产品特性与优势
- 车规认证：通过 AEC‑Q200，满足汽车电源系统对耐温、抗振以及长期可靠性的严格要求。
- 高饱和电流：2.5 A 的 Isat 能在突发冲击或负载瞬变时维持良好电感特性，减少饱和带来的性能退化。
- 低 DCR：约 200 mΩ 的直流电阻有利于降低功耗与发热，提升转换效率。
- 封装小巧：7.3×6.6 mm 的 SMD 封装便于自动贴装，适合空间受限的板级布局。
四、典型应用场景
- 汽车电子：车载控制器、传感器供电、车充及车载娱乐系统电源滤波与储能。
- 开关电源：降压（Buck）／升压（Boost）转换器的储能与输出滤波。
- 工业与通信：点对点电源模块、LED 驱动电源、隔离电源次级滤波。
五、PCB 布局与散热建议
- 尽量将电感靠近开关器件与输出电容布置，缩短电流回流路径，减小环路电感。
- 输出电容与电感间距较小有利于抑制输出纹波；保持良好过孔与散热铜箔，以利热量通过铜箔扩散。
- 对于高电流应用，避免在电感下方开大面积铜填充且留应力释放空间，减少机械疲劳风险。
六、可靠性与使用注意事项
- 推荐在厂方指定的回流焊温度曲线下进行焊接，避免过高峰温或重复多次回流，以保护内部绕组和粘结材料。
- 在超过 Isat 的工作条件下，电感会进入饱和区，电感值急剧下降，应在设计裕量内选择电感规格。
- 长期高温运行会加速电阻与磁性材料老化，设计时需预留足够热裕量并做好温升评估。
七、封装与订购信息
SRP7028A-330M 为表面贴装器件，常见为卷带包装（具体包装形式与数量请参照 BOURNS 产品手册或向代理商确认）。订购或批量设计前，建议索取并核对器件数据手册与可靠性报告以获得完整的电气测试条件与尺寸公差。
如需更多针对电源拓扑、滤波方案或在特定工况下的仿真建议，可提供应用场景与工作参数以便给出更具体的选型与设计指导。
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