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BOURNS SRP8540A-8R2M
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS SRP8540A-8R2M
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 800 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRP8540A-8R2M
- Electronic Component
- 1
- Package
- SMD,8.8x8.4mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 1g
- Inductor
- 8.2uH
- Electronic Component
- 1
- Electronic Component
- BM0229925592
- Electronic Component
- AEC-Q200
- Current
- 6A
- Resistor(DCR)
- 51mΩ
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SRP8540A-8R2M 产品概述
一、产品简介
SRP8540A-8R2M 是 BOURNS 推出的表面贴装功率电感，标称电感值 8.2 µH（公差 ±20%），封装尺寸 8.8 × 8.4 × 3.8 mm，额定电流 6 A，饱和电流（Isat）16 A，直流电阻（DCR）约 51 mΩ。该系列满足 AEC‑Q200 汽车级可靠性要求，专为汽车及工业级开关电源和功率滤波场合设计。
二、主要性能特点
- 电感值：8.2 µH，±20% 公差，适合中低频功率滤波与储能场景。
- 电流能力：额定电流 6 A，饱和电流 16 A，能承受瞬态大电流而不过度退磁。
- 低频损耗与热性能：DCR ≈ 51 mΩ，在额定电流下具有可控的功耗与温升。
- 封装与工艺：SMD 结构，8.8×8.4×3.8 mm 紧凑型外形，便于自动贴装与回流焊接。
- 车规等级：通过 AEC‑Q200，适用于汽车电子环境的高温、振动与长寿命要求。
三、典型应用场景
- 汽车电源管理：车载 DC‑DC 降压转换器、车身控制模块（BCM）、仪表与信息娱乐系统。
- 工业与通信：开关电源滤波器、隔离/非隔离电源、基站与网络设备电源链路。
- 电机驱动与 LED 驱动：作为输入滤波或能量储存元件，平衡体积与电流承载能力。
四、设计与选型建议
- 电流裕量：为避免在脉冲工作下接近饱和，建议峰值电流低于 Isat 的 60–80%；长期发热按额定电流 6 A 设计并考虑散热措施。
- DC 偏置影响：在有直流偏置的场合，实际电感会随直流电流下降，设计时应参考器件的曲线或预留余量。
- 损耗与效率权衡：DCR 较大时会增大 I²R 损耗，若需更高效率可考虑 DCR 更低的同类器件或并联方案。
- 布局建议：将电感靠近开关器件或负载放置，优化回流路径并用粗铜与过孔提升散热与电流承载能力。
五、封装与焊接注意事项
- 采用标准回流焊工艺，遵循厂商推荐的温度曲线以避免磁芯或焊点应力。
- 存储与贴装时避免受潮与机械冲击，贴片后避免强烈弯曲 PCB 以防损伤引脚与内部绕组。
六、可靠性与替代方案
- AEC‑Q200 认证提供汽车级可靠性保障，适用于高温、振动与寿命要求严格的应用。
- 如需更低 DCR 或更高额定电流，可在 BOURNS 或其他厂商的相近尺寸系列中比较 Isat、DCR 与尺寸，权衡体积与性能。
总体而言，SRP8540A-8R2M 以其平衡的电感值、较高的饱和电流与车规可靠性，适合汽车与工业电源中作为储能与滤波元件。在设计中应注意 DC 偏置对电感的影响、DCR 带来的功耗以及热管理，以确保长期稳定运行。若需更详细的频率响应、温升曲线或封装尺寸图，建议查阅 BOURNS 官方规格书。
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