WMSIC Electronic Components

YJYCOIN YSMC0420V-3R3M YSMC0420V

ModelYSMC0420V-3R3M
PackageSMD,4x4mm
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 YSMC0420V-3R3M
Type
YJYCOIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
YSMC0420V-3R3M
Electronic Component
1
Package
SMD,4x4mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.342g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0266128079
Current
4.5A
Resistor(DCR)
43mΩ
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.

YSMC0420V-3R3M 一体成型功率电感产品概述

一、产品核心定位与应用场景

YSMC0420V-3R3M是益嘉源(YJYCOIN)推出的小体积高密度一体成型功率电感,专为中低功率电子设备的电源管理、滤波及储能场景设计。其4×4mm的紧凑SMD封装适配自动化生产,同时兼顾电流承载能力与电磁兼容性,广泛应用于消费电子、车载电子、工业控制等领域的关键电路中。

典型应用场景包括:

  • 消费电子:手机快充模块、笔记本电脑DC-DC降压转换器、便携式设备电池管理系统;
  • 车载电子:车载USB充电器、LED氛围灯驱动电路、小型车载传感器电源;
  • 工业控制:微型PLC辅助电源、低功率电机驱动电路、物联网终端设备电源模块。

二、关键电气性能参数详解

该电感的核心参数针对功率电路需求优化,关键指标如下:

1. 电感值与精度

电感标称值为3.3μH,精度±20%,满足中频段(100kHz~1MHz)DC-DC转换器的储能与滤波需求,无需额外复杂的匹配电路即可实现稳定的电压输出。

2. 电流承载能力

  • 额定电流(Irms):4.5A:连续工作电流下,电感磁芯无饱和,温升控制在安全范围内(典型≤50℃),保证长期可靠运行;
  • 饱和电流(Isat):6A:峰值电流耐受能力,可应对瞬态负载波动(如设备启动瞬间的大电流需求),避免磁芯饱和导致的电感值骤降,提升电路稳定性。

3. 直流电阻(DCR)

直流电阻为43mΩ,属于同类4×4mm封装电感中的低损耗水平,显著降低铜损,提升电源转换效率(可使DC-DC效率提升约1%~2%,对于高功率密度设计尤为关键)。

4. 封装与尺寸

采用4×4mm SMD表面贴装封装,厚度符合工业标准(典型2mm),兼容回流焊工艺,适配高密度PCB布局,有效节省设备内部空间。

三、结构设计与性能优势

YSMC0420V-3R3M采用一体成型磁屏蔽结构,相比传统开放式电感具有明显优势:

1. 电磁兼容性(EMC)优化

磁芯完全包裹线圈,有效抑制电磁辐射与传导干扰,降低对周边敏感电路的影响,减少EMC测试整改成本。

2. 抗恶劣环境能力

一体成型结构抗振动、抗冲击性能优异(可通过10g/50~2000Hz振动测试),适合车载、工业等 harsh 环境;同时磁芯与线圈结合紧密,无松动风险,提升长期可靠性。

3. 热稳定性

低DCR减少自身发热,配合磁芯的低热阻特性,可在-40℃~125℃的宽温度范围内稳定工作,满足极端环境下的应用需求。

四、选型与应用注意事项

1. 电流匹配原则

  • 稳态工作电流需≤4.5A(额定电流),避免长期过载导致温升过高;
  • 瞬态峰值电流需≤6A(饱和电流),防止磁芯饱和影响电感性能。

2. 频率适配

建议工作频率范围为100kHz~1MHz,此范围内电感值稳定,转换效率最高;若频率过低,电感体积需增大,本款不适用;频率过高则磁芯损耗增加,需结合实际需求评估。

3. PCB布局建议

  • 电感周边预留适当散热空间(至少1mm),避免与高发热元件(如MOS管)近距离布置;
  • 焊盘设计需匹配4×4mm封装,保证焊接强度与散热路径。

五、总结

YSMC0420V-3R3M作为一款小体积、高电流、低损耗的一体成型功率电感,兼顾了性能与成本优势,适合中低功率电子设备的电源管理场景。其紧凑封装、优异的EMC性能及宽温度范围工作能力,使其成为消费电子、车载、工业控制等领域的高性价比选型。

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