WMSIC Electronic Components

YJYCOIN CD32YP0302-4R7M CD32YP0302

ModelCD32YP0302-4R7M
PackageSMD,3.5x3x2.1mm
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 CD32YP0302-4R7M
Type
YJYCOIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
CD32YP0302-4R7M
Electronic Component
1
Package
SMD,3.5x3x2.1mm
Type
Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.217g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265061729
Current
1.5A
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.

CD32YP0302-4R7M 产品概述

一、产品简介

CD32YP0302-4R7M 是 YJYCOIN(益嘉源)推出的一款表面贴装功率电感,电感值为 4.7µH,公差 ±20%,额定直流电流 1.5A,直流电阻(DCR)约 170mΩ。器件为非屏蔽结构,封装尺寸紧凑,为 SMD 3.5 × 3.0 × 2.1 mm,适用于空间受限的开关电源与电源滤波场合。

二、主要参数

  • 型号:CD32YP0302-4R7M
  • 品牌:YJYCOIN(益嘉源)
  • 电感值:4.7 µH(±20%)
  • 额定直流电流:1.5 A(额定值,实际使用时建议适当降额)
  • 直流电阻(DCR):约 170 mΩ
  • 类型:非屏蔽功率电感(SMD)
  • 封装尺寸:3.5 × 3.0 × 2.1 mm
  • 安装方式:表面贴装(SMD)

备注:±20% 公差意味着实际电感值可能在约 3.76 µH 到 5.64 µH 范围内,使用时需考虑容差对电路的影响。

三、性能与电气特性分析

  • 功率损耗与温升:在额定直流电流 1.5 A 下,基于 DCR 的直流损耗可估算为 P = I^2·R ≈ 0.38 W,电感两端直流压降约为 U = I·R ≈ 0.255 V。连续运行时会产生明显发热,需在布局和散热设计中考虑这一点。
  • 饱和与交流特性:作为功率电感,随着直流偏置增大,电感值会出现下降(趋于饱和),因此在含较大直流偏置的开关电源中,应留有裕量或评估纹波电流下的有效电感值。
  • 非屏蔽结构:未屏蔽设计有利于成本与尺寸,但会产生较大的外泄磁场,在高密度或对 EMI 敏感的应用中需合理隔离。

四、典型应用场景

  • 小功率降压(Buck)开关电源、升压(Boost)转换器
  • 移动设备与便携电子的电源滤波或能量存储回路
  • LED 驱动电源、备用电源模块、板载电源管理
  • 通信设备、工业控制中对中低功率电源要求的场合

五、使用注意事项与 PCB 布局建议

  • 电流降额:建议在实际设计中对额定电流进行降额(例如 70–80%),以减少温升并避免磁芯饱和导致的电感下降。
  • 紧靠关键电容:在开关电源中,将电感尽可能靠近输入/输出电容与开关节点放置以最小化回路面积和寄生电感。
  • 宽铜箔与热扩散:因 DCR 较高,电感功耗不可忽视,建议在 PCB 上为电感引脚和散热区域设计足够的铜厚与散热通道,必要时加大铜面积或使用过孔增强散热。
  • EMI 管理:由于为非屏蔽型,布线时避免与敏感信号线平行走线或近邻放置;必要时加设磁屏蔽罩或将其置于电磁干扰容忍较高的位置。
  • 焊接兼容性:适配常见无铅回流焊工艺,建议遵循厂家推荐的回流曲线进行焊接以保证可靠性。

六、可靠性与测试建议

  • 生产测试:可进行 DCR、直流电流承受测试、感值分布测试及温升测试以确保批次一致性。
  • 环境与寿命验证:对长期工作的电源模组,建议做老化测试、热循环和振动测试,检验电感在实际工况下的稳定性。
  • 饱和测试:在目标电流范围内验证电感在直流偏置下的有效电感下降情况,防止设计时低估 ripple 电流或欠滤波。

七、封装与选型建议

  • CD32YP0302-4R7M 的小型封装适合高密度 SMT 布局。若目标应用电流高于 1.5 A 或对压降和发热更为敏感,建议选用额定电流更高且 DCR 更低的替代型号。
  • 在替换或同类比较时,关注关键参数:额定电流、DCR、饱和电流、实际电感在偏置下的保持率及封装尺寸,确保满足系统的热与电气约束。

以上为 CD32YP0302-4R7M 的产品概述与应用指引。若需更详细的典型电路、频率响应或温升曲线,请提供目标工作条件(开关频率、纹波电流、环境温度等),以便给出更精确的选型和布板建议。

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