WMSIC Electronic Components

SXN SMDRI125-221MT Inductor SMDRI125

ModelSMDRI125-221MT
PackageSMD,12.3x12.3mm
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 SMDRI125-221MT
Type
SXN
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMDRI125-221MT
Electronic Component
1
Package
SMD,12.3x12.3mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
3.424g
Inductor
220uH
Electronic Component
1
Electronic Component
BM0265601698
Current
800mA
Resistor(DCR)
400mΩ
Electronic Component
Electronic Component
Electronic Component
500

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

SMDRI125-221MT 功率电感产品概述

SMDRI125-221MT是顺翔诺(SXN)品牌推出的磁胶屏蔽式贴片功率电感,针对中低功率直流-直流(DC-DC)转换及驱动电路设计,兼顾电磁兼容性与电流承载能力,适用于消费电子、小型工业及车载辅助电源等场景。

一、产品基本定位与核心类型

该电感属于磁胶屏蔽功率电感,区别于非屏蔽电感的开放式结构,通过磁胶包裹线圈有效抑制电磁辐射,减少对周边敏感电路的干扰;同时作为功率电感,核心功能是在电路中实现储能、滤波及抑制纹波,满足中低功率(<20W)设备的电源转换需求。

二、关键电气性能参数

SMDRI125-221MT的核心参数匹配中低功率电路的实际需求,具体如下:

  • 电感值与精度:标称电感量220uH(标识“221”,即22×10¹uH),精度±20%,满足一般DC-DC转换器的电感量设计要求,无需额外筛选即可批量应用;
  • 饱和电流(Isat):1.45A,指电感值下降30%时的最大直流电流,此参数直接决定电感在额定负载下的性能稳定性——当电路电流不超过1.45A时,电感量波动可控,避免因饱和导致的纹波增大或效率下降;
  • 直流电阻(DCR):400mΩ(0.4Ω),反映线圈的直流损耗,低阻值有助于降低电源转换过程中的热损耗,提升整体效率;
  • 工作频率范围:适配10kHz~1MHz的开关频率区间,与常见的BUCK/BOOST型DC-DC转换器工作频率匹配,无需额外调整电路参数。

三、物理封装与工艺特点

  1. 封装规格:采用SMD贴片封装,尺寸为12.3×12.3×6.0mm(长宽高),属于125封装级别(行业通常以“12×12×5mm”为基准,实际尺寸因工艺略有差异),兼容标准自动贴片机,支持回流焊工艺;
  2. 屏蔽工艺:磁胶屏蔽设计,相比非屏蔽电感可降低约30%~50%的电磁辐射,符合GB/T 17626等电磁兼容标准,适合对EMI要求较高的设备;
  3. 线圈与可靠性:线圈采用高导电率铜线绕制,表面经绝缘处理,耐温范围为-40℃~125℃,满足工业级及车载环境的温度要求,焊接过程中无开裂、变形风险。

四、典型应用场景

SMDRI125-221MT的参数与封装特性,使其适用于以下场景:

  1. 消费电子电源:手机充电器、平板电源适配器、便携式蓝牙音箱的DC-DC降压电路,满足5V/2A左右的输出需求;
  2. LED驱动电路:小功率LED台灯、室内装饰灯的恒流驱动模块,电感储能保证LED电流稳定,减少频闪;
  3. 小型工业设备:智能家居传感器节点、智能插座的辅助电源,磁胶屏蔽降低对通信模块的干扰;
  4. 车载辅助电路:车载USB充电口、车内氛围灯的电源转换,耐温特性适配车载-40℃~85℃的工作环境。

五、产品优势与适用价值

  1. EMI控制突出:磁胶屏蔽结构有效抑制电磁辐射,避免对周边射频电路、传感器的干扰,减少设备EMC测试整改成本;
  2. 性能与成本平衡:1.45A饱和电流覆盖中低功率需求,400mΩ低DCR提升效率,同时顺翔诺品牌的性价比优势,适合批量应用于中低端市场;
  3. 生产兼容性强:标准贴片封装可直接用于现有SMT生产线,无需调整贴装程序,降低生产适配成本;
  4. 可靠性稳定:-40℃~125℃的宽温范围,满足不同场景的环境要求,减少因温度变化导致的性能波动。

整体来看,SMDRI125-221MT是一款针对中低功率电源电路设计的高性价比磁胶屏蔽功率电感,兼顾电磁兼容、电流承载与成本控制,适用于多类消费电子及小型工业设备的批量应用。

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