WMSIC Electronic Components

PROD PSTMAA252012-4R7MB PSTMAA252012

ModelPSTMAA252012-4R7MB
Package1008
BrandPROD
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
PROD PSTMAA252012-4R7MB
Type
PROD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PROD
Electronic Component
PSTMAA252012-4R7MB
Electronic Component
1
Package
1008
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.063g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0257674284
Current
2.4A
Resistor(DCR)
170mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

PSTMAA252012-4R7MB 产品概述

一、产品简介

PSTMAA252012-4R7MB 是谱罗德(PROD)推出的一款一体成型扁平线电感,面向开关电源与电源管理电路的功率滤波与储能场合。器件采用扁平线绕制与整体灌封工艺,兼顾低直流电阻、良好散热性与机械强度,适合表贴(SMT)自动贴装与无铅回流焊工艺。

二、主要参数

  • 电感值:4.7 μH(标称)
  • 精度:±20%
  • 额定电流(Irated):2.4 A
  • 饱和电流(Isat):2.7 A(磁芯开始进入饱和区的参考值)
  • 直流电阻(DCR):约 170 mΩ
  • 类型:扁平线/一体成型电感
  • 品牌:PROD(谱罗德)
  • 封装:1008(贴片封装,适合空间受限的应用)

三、产品特性

  1. 扁平线工艺:较传统圆线具有更小的直流电阻与更好的散热路径,有利于提高电流承载能力和降低发热。
  2. 一体成型灌封:增强机械强度与抗振性能,适合移动设备和工业应用。
  3. 低封装轮廓:适合用于空间受限的功率模块和紧凑型板级电源设计。
  4. 稳定的电气性能:在额定电流范围内保持较稳定的感值,过大直流电流会引起温升与感值下降,需合理评估热设计。

说明:在额定电流 2.4 A 下,器件的铜耗约为 I^2·R ≈ 2.4^2×0.17 ≈ 0.98 W,设计时应考虑散热与温升对可靠性的影响。

四、典型应用

  • 同步降压/升压 DC-DC 转换器输出滤波与储能
  • 嵌入式与消费电子电源模块(路由器、机顶盒、智能终端)
  • 工业控制与通信设备的局部电源滤波
  • LED 驱动与车载非关键电源(需按额定与环境温度做适配)

五、使用建议与 PCB 设计注意事项

  • 额定电流为长期可靠工作参考值,建议在设计时留有裕量,避免长期满载运行以降低温升与延长寿命。
  • 注意直流偏置对电感值的影响:高直流通过时电感可能下降,应在电路仿真或样机测试中核实。
  • 布局建议:电感靠近开关芯片与输出电容放置,缩小开关回路面积;保证引脚焊盘充分湿润,便于散热。
  • 为降低温升,可在电感附近增加铜皮面积或过孔导热至多层内层/底层。
  • 兼容常规无铅回流焊温度曲线,但建议按制造商提供的回流曲线进行工艺验证。

六、订购与储存

  • 订货型号:PSTMAA252012-4R7MB,品牌:PROD(谱罗德)。
  • 包装形式通常为托盘或带卷盘,便于 SMT 生产线使用。
  • 储存条件:避免潮湿、高温与强酸碱环境;长期储存建议防潮包装并按常温干燥环境保存。

若需进一步的电感与频率特性曲线、尺寸图或回流工艺曲线,可联系供应商获取详细数据手册与样品以便在具体应用中评估。

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