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BOURNS SRN6045TA-470M
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS SRN6045TA-470M
- Type
- BOURNS
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SRN6045TA-470M
- Electronic Component
- 1
- Package
- SMD,6x6mm
- Electronic Component
- Power Inductor
- Electronic Component
- ±20%
- Electronic Component
- 0.94g
- Inductor
- 47uH
- Electronic Component
- 1
- Electronic Component
- BM0256952454
- Electronic Component
- AEC-Q200
- Current
- 1.6A
- 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.
SRN6045TA-470M — 产品概述
一、产品简介
SRN6045TA-470M 为 BOURNS 车规级功率电感，标称电感值 47 µH，公差 ±20%。器件为 SMD 封装（6 × 6 mm），额定持续电流 1.6 A，饱和电流（Isat）2 A，直流电阻（DCR）约 200 mΩ，满足 AEC‑Q200 车规可靠性要求，适合汽车与工业电源应用中的磁性滤波与能量存储。
二、主要特性
- 电感：47 µH ±20%（常见开关电源与滤波用途）；
- 电流能力：额定连续 1.6 A，饱和点 2 A；
- 直流损耗：DCR ≈ 0.2 Ω，功耗与温升需考虑；
- 封装：SMD，6×6 mm，便于自动贴装与高密度布局；
- 可靠性：通过 AEC‑Q200 认证，适用于汽车电子系统。
三、电气性能与热管理要点
- 饱和与直流偏置：在直流偏置下电感值会下降，接近 Isat（2 A）时电感明显减小，应在设计时留有裕量；建议连续工作电流不超过额定 1.6 A。
- 铜损计算举例：在额定电流 1.6 A 下，铜损 P = I²·DCR ≈ 1.6² × 0.2 ≈ 0.51 W；在接近 Isat（2 A）时为 ≈ 0.8 W。该损耗会引起显著温升，应在 PCB 散热和工作条件下验证。
- 频率适用：常用于几十 kHz 至数 MHz 的开关电源环境，但具体核心损耗与频率相关，设计时建议结合实际测试曲线验证。
四、典型应用
- 降压/升压 DC‑DC 转换器中的储能电感；
- 电源输入/输出滤波，用于抑制纹波与电磁干扰；
- 汽车电源模块、车载充电器、工业电源与 LED 驱动等需高可靠性的场合。
五、封装与 PCB 实施建议
- 采用与 6×6 mm 封装匹配的焊盘布局，保证大焊盘面积以利于散热与机械强度；
- 布局尽量缩短电感与 MOSFET/电容之间的回流路径，降低环路电感与 EMI；
- 回流焊工艺需遵循厂商焊接温度曲线，避免过度加热影响性能与可靠性。
六、使用注意事项
- 建议在实际工作点测量电感随直流偏置的变化，确保电路在最差情况下仍满足要求；
- 对于高纹波电流或持续高温环境，应考虑降额使用或增加散热改善措施；
- 在汽车应用中，需关注瞬态电流冲击与热循环应力，必要时与供应商确认完整可靠性数据。
七、总结
SRN6045TA-470M 以其 47 µH 的能量存储能力、2 A 的饱和指标和 AEC‑Q200 车规等级，适合对可靠性与体积有要求的电源设计。设计时务必考虑 DCR 带来的铜损与温升、直流偏置导致的电感下降，并通过 PCB 布局与热管理手段保证长期稳定工作。若需更详细的电气曲线与封装图，建议参考 BOURNS 官方资料或咨询代理商获取完整数据手册。
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