WMSIC Electronic Components

BOURNS SRP3012TA-2R2M

ModelSRP3012TA-2R2M
PackageSMD,3.5x3.2mm
BrandBOURNS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BOURNS SRP3012TA-2R2M
Type
BOURNS
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SRP3012TA-2R2M
Electronic Component
1
Package
SMD,3.5x3.2mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.001g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0226459672
Electronic Component
AEC-Q200
Current
2.7A
Resistor(DCR)
98mΩ
Electronic Component
Electronic Component
Electronic Component
4000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SRP3012TA-2R2M 产品概述

一、产品简介

SRP3012TA-2R2M 是 BOURNS 面向车规和工业级电源设计的屏蔽绕线贴片电感。器件尺寸为 SMD 3.5 × 3.2 mm,标称电感值 2.2 µH(±20%),采用屏蔽结构和绕线工艺,兼顾小体积与高电流能力,并通过 AEC‑Q200 车规认证,适合车载电源以及对可靠性有较高要求的应用。

二、主要参数

  • 电感值:2.2 µH,公差 ±20%
  • 额定电流:2.7 A(连续工作建议以此为基准进行设计)
  • 饱和电流(Isat):3.4 A(在此电流下电感量会明显下降)
  • 直流电阻(DCR):典型 98 mΩ;规格上限近 115 mΩ(视测试条件)
  • 封装:SMD,外形 3.5 × 3.2 mm
  • 结构:屏蔽绕线式,适合抑制电磁干扰
  • 可靠性等级:AEC‑Q200(适合车规级应用)

三、性能特点

  • 屏蔽化设计:有效降低磁场泄漏,便于密集布板时控制 EMI 干扰。
  • 绕线工艺:在保证电感稳定性的同时,提供较高的电流承载能力和良好的热稳定性。
  • 小型化高电流:3.5×3.2 mm 的体积下实现 2.7 A 额定电流,适合空间受限的点载流(POL)方案。
  • 车规可靠性:通过 AEC‑Q200 认证,适合汽车电子环境的温度与振动要求。

四、典型应用

  • 汽车电子:车载 DC‑DC 升降压模块、车载充电、车身电子电源滤波与能量传输。
  • 工业与通讯:开关电源、点载转换器、功率滤波器。
  • 消费类电子:高密度电源模块、USB‑PD、移动电源(需关注热量管理)。

五、设计注意事项

  • 损耗与热管理:使用额定电流 2.7 A 时,按典型 DCR 0.098 Ω 计算,铜损约为 P = I^2·R ≈ 2.7^2 × 0.098 ≈ 0.71 W;若按上限 DCR 115 mΩ,损耗接近 0.84 W。实际发热与封装散热、PCB 走线和环境温度密切相关,建议评估局部温升并采取散热/降额措施。
  • 电流去磁(DC bias):随着直流偏置电流增加,电感值会下降;设计时应为电感量留有裕度,尤其在工作电流接近额定或饱和点时。
  • 布局建议:电感两端走短且宽的电源走线,靠近开关器件放置,必要时采用热通孔或加大铜箔面积以改善散热。屏蔽端朝向应与周边敏感器件保持合理间距。
  • 焊接与可靠性:遵循 BOURNS 推荐的回流焊工艺曲线和 AEC‑Q200 测试要求,避免超过器件额定温度与应力限值。

六、替代与选型建议

若系统对功耗或温升敏感,可考虑选择更低 DCR 或更高额定电流的同族件;若空间允许,可选用更大尺寸以获得更低损耗和更高饱和电流裕度。选择时权衡电感值、DCR、额定电流与封装尺寸,优先参考器件数据手册中完整的电流‑电感特性曲线与热特性。

如需完整数据手册、封装尺寸图(PCB land pattern)、电流‑电感曲线或针对具体应用(例如输入/输出滤波、同步降压拓扑)的选型建议,可提供工作电压、最大纹波电流与环境温度等信息,我可据此给出更精确的设计建议。

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