WMSIC Electronic Components

SXN SMDRH104R-221MT Inductor SMDRH104R

ModelSMDRH104R-221MT
PackageSMD
BrandSXN
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
SXN SMDRH104R-221MT
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMDRH104R-221MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.837g
Inductor
220uH
Electronic Component
1
Electronic Component
BM0265793579
Current
700mA
Resistor(DCR)
756mΩ
Electronic Component
Electronic Component
Electronic Component
1000

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

SMDRH104R-221MT 磁胶屏蔽功率电感产品概述

SMDRH104R-221MT是顺翔诺(SXN)推出的一款SMD封装磁胶屏蔽功率电感,针对小功率DC-DC转换、电源滤波等场景设计,兼具小型化、低损耗与抗干扰特性,适配消费电子、智能家居等多领域需求。

一、核心参数与封装特性

该电感的关键参数清晰明确,满足基础电路设计需求:

  • 电感值:220μH(±20%精度),属于中等电感量,适合电压转换中的储能需求;
  • 电流参数:额定电流700mA(连续工作下电感温升不超标的最大电流),饱和电流1.19A(电感值下降30%时的临界电流),过载能力较强;
  • 直流电阻(DCR):756mΩ,在同体积、同电感量的功率电感中,损耗控制处于中等偏优水平,可降低电源转换中的热损耗;
  • 封装尺寸:SMD封装,具体为10.4×10.3mm(长宽),属于小型化功率电感,适配紧凑布局的电子设备;
  • 屏蔽类型:磁胶屏蔽,相比非屏蔽电感,能有效减少电磁辐射与串扰,提升电路EMI兼容性。

二、设计优势与性能特点

该电感的设计针对性强,主要优势体现在以下几点:

  1. 抗干扰性能突出:磁胶屏蔽结构通过包裹磁芯减少漏磁,避免对周边敏感元件(如射频模块)造成干扰,适合对EMI要求严格的场景(如智能家居WiFi模块);
  2. 小体积大电流适配:10.4×10.3mm的紧凑封装下,仍能支持700mA连续电流与1.19A饱和电流,满足小型设备的功率密度需求;
  3. 损耗控制合理:756mΩ的DCR在工作时产生的热损耗较低,搭配合理的电路设计可提升电源转换效率(如移动电源的升压电路效率提升约1-2%);
  4. 参数稳定性好:±20%的精度在功率电感中属于常规实用范围,磁胶材料的温度特性稳定,-40℃至+125℃的工作温度范围(行业常规磁胶电感参数)内,电感值波动较小。

三、典型应用场景

SMDRH104R-221MT的参数与设计适配多类小功率电子设备,核心应用场景包括:

  1. 消费电子电源:手机快充充电器、移动电源的DC-DC降压/升压电路(如5V转3.3V的降压模块),利用其储能特性稳定输出电压;
  2. 智能家居设备:智能插座、WiFi摄像头、智能门锁的电源滤波与转换电路,磁胶屏蔽减少对射频信号的干扰;
  3. 小型工业模块:微型PLC、传感器节点(如温湿度传感器)的辅助电源电路,支持稳定的小电流输出;
  4. 车载小配件:车载充电器、行车记录仪的电源部分,应对车载环境的温度波动与瞬间电流变化(如启动时的浪涌电流)。

四、选型与使用注意事项

为确保该电感的性能稳定,使用时需注意以下几点:

  1. 电流匹配:电路连续工作电流需≤700mA,若存在瞬间浪涌电流(如启动瞬间),需确保浪涌峰值≤1.19A,避免电感饱和导致性能下降;
  2. 温度控制:工作环境温度避免超过+125℃(磁胶电感的极限温度),若设备内部散热较差,可适当增加散热设计;
  3. 焊接规范:SMD封装采用回流焊工艺,需遵循行业标准温度曲线(如峰值温度240-250℃,时间10-30秒),避免过温损坏磁芯与线圈;
  4. 布局建议:将电感靠近电源输出端或DC-DC芯片的储能端布局,减少线路损耗;磁胶屏蔽电感无需额外屏蔽,但需与射频元件保持适当距离(≥5mm),进一步降低干扰。

总结:SMDRH104R-221MT是一款性价比突出的小型化磁胶屏蔽功率电感,参数适配小功率电源场景,抗干扰与损耗控制能力满足多数消费电子、智能家居设备的需求,是紧凑布局电路的实用选型。

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