WMSIC Electronic Components

YJYCOIN CD43YP0403-4R7M CD43YP0403

ModelCD43YP0403-4R7M
PackageSMD,4.5x4x3.2mm
BrandYJYCOIN
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
YJYCOIN CD43YP0403-4R7M
Type
YJYCOIN
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
CD43YP0403-4R7M
Electronic Component
1
Package
SMD,4.5x4x3.2mm
Type
Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
2.427g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265061741
Current
1.7A
Resistor(DCR)
94mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

CD43YP0403-4R7M — 功率电感产品概述

一、产品简介

CD43YP0403-4R7M 是益嘉源(YJYCOIN)推出的一款表面贴装非屏蔽功率电感,体积为 4.5 × 4.0 × 3.2 mm。额定电感值 4.7 μH(±20%),额定电流 1.7 A,直流电阻(DCR)约 94 mΩ,专为中低功率 DC–DC 变换、滤波与电源管理场景设计,适合对体积与成本有一定要求但仍需稳定电流承载能力的应用。

二、主要参数

  • 型号:CD43YP0403-4R7M
  • 品牌:YJYCOIN(益嘉源)
  • 电感值:4.7 μH,公差 ±20%
  • 额定电流:1.7 A(连续)
  • 直流电阻(DCR):94 mΩ
  • 类型:非屏蔽功率电感(SMD)
  • 封装尺寸:4.5 × 4.0 × 3.2 mm

注:电感值随电流和温度会发生变化,实际设计应以厂家完整数据手册为准。

三、特性与优势

  • 小型化封装:4.5×4×3.2 mm 体积适合空间受限的移动设备和板载电源设计。
  • 合理的电流承载:1.7 A 额定电流适用于中小功率降压转换器和电源滤波。
  • 可接受的能量损耗:在 1.7 A 时导通损耗约 P = I^2·DCR ≈ 0.27 W,便于热管理评估。
  • 成本与工艺优势:非屏蔽结构、SMD 封装利于大规模贴片回流焊生产,降低 BOM 成本。

四、典型应用场景

  • 开关稳压器(Buck/Boost)电感储能元件,用于手机配件、便携式设备、物联网节点等;
  • 电源输入/输出滤波与纹波抑制;
  • 电源模块与电源管理 IC 附近的去耦与能量缓冲;
  • 低至中等电流的工业与消费类电子产品。

五、设计与封装注意事项

  • 布局:将电感放在开关管与电感/电容回路的最短路径上,缩小环路面积以降低 EMI。
  • 散热:DCR 产生的热量需通过铜箔和过孔散出;对连续接近额定电流的使用建议采取一定的电流降额(如 70–80%)以降低温升并避免磁芯饱和。
  • 回流焊:适用于标准无铅回流焊工艺,但建议参考厂方的焊接温度曲线与焊盘设计。
  • 电磁兼容:非屏蔽结构在高频开关应用下可能对周围器件产生较高的辐射,需通过布局、滤波与屏蔽策略进行管控。
  • 测试与验证:在最终应用中应测试实际温升、纹波电流和磁饱和特性,确保在工作点下满足电感值与效率要求。

六、选型建议

  • 若电流需求或效率更高,优先选择 DCR 更低或额定电流更大的型号,或改用屏蔽型电感以改善 EMI。
  • 若对电感精度或温漂有严格要求,可选择公差更小或高性能磁芯材料的替代品。
  • 在多层 PCB 中,可通过加大铜箔面积与过孔数目优化散热,从而提升实际允许电流。
  • 在量产前,与供应商确认包装形式(卷带、盒装)、库存与交期,以及是否提供样品与完整数据手册。

总结:CD43YP0403-4R7M 是一款面向中低功率电源设计的紧凑型 SMD 功率电感,适合用于便携与嵌入式电源模块。设计时应重视热管理、布局与 EMI 控制,并根据实际工作电流对器件进行适当的降额与验证。若需更详细的电气参数、频率特性或可靠性测试数据,请联系供应商索取完整 datasheet。

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