WMSIC Electronic Components

SXN SMDRI74-330MT Inductor SMDRI74

ModelSMDRI74-330MT
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 SMDRI74-330MT
Type
SMD
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMDRI74-330MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.138g
Inductor
33uH
Electronic Component
1
Electronic Component
BM0265793604
Current
960mA
Resistor(DCR)
170mΩ
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.

SMDRI74-330MT 功率电感产品概述

一、产品基本定位与身份信息

SMDRI74-330MT是顺翔诺(SXN)品牌推出的磁胶屏蔽贴片功率电感,核心面向中低功率场景的储能与滤波需求。产品以“33uH电感量+1.8A饱和电流”为核心标识,采用7.5×7.5mm的SMD贴片封装,既适配自动化贴装产线,又兼顾体积紧凑性与性能稳定性,是小型化电子设备电源管理系统的常用选型之一。

二、关键参数及实际应用意义

  1. 电感量与精度:标称33uH,精度±20%(实际范围26.4uH~39.6uH),满足大多数DC-DC转换器的储能需求,无需过度依赖高精度电感即可平衡成本与性能;
  2. 额定电流(960mA):连续工作时的最大允许电流,设备长期运行时电流需控制在此范围内,避免电感性能衰减或发热异常;
  3. 饱和电流(1.8A):电感值下降30%的临界电流,是峰值负载的“安全上限”——比如电源瞬间启动、负载突变时,电流不能超过1.8A,否则电感储能能力骤降;
  4. 直流电阻(DCR:170mΩ):低DCR意味着直流损耗小、发热低,能提升电源转换效率(尤其适合低电压大电流场景,如手机快充模块);
  5. 磁胶屏蔽结构:通过磁胶包裹减少漏磁,降低对周边敏感电路的电磁干扰(EMI),适配对EMI要求严格的设备(如通信模块、医疗小型设备)。

三、结构与封装特性

  • 磁胶屏蔽优势:区别于裸电感的漏磁问题,磁胶层可将80%以上的磁场约束在电感内部,减少对PCB上射频芯片、传感器等元件的干扰,简化整机EMI设计;
  • SMD贴片封装:7.5×7.5mm体积小巧,适合高密度PCB布局(如智能手表、路由器等小型设备),同时支持回流焊、波峰焊等自动化贴装工艺,降低生产难度;
  • 结构稳定性:采用一体化成型工艺,电感线圈与磁芯结合紧密,抗振动、抗冲击能力符合工业级标准(振动测试可达10G,冲击测试可达50G),适配户外设备或车载辅助电源场景。

四、典型应用场景

SMDRI74-330MT的参数特性使其适配多种中低功率场景:

  1. 消费电子:手机充电器、平板电源管理模块(DC-DC降压电路);
  2. 物联网终端:智能传感器节点、低功耗网关的供电电路;
  3. 小型家电:机顶盒、路由器、智能音箱的电源滤波部分;
  4. 工业控制:小型PLC、传感器模块的辅助电源;
  5. 车载辅助:车载USB充电器、行车记录仪的电源系统(支持-40℃~85℃常规温区)。

五、选型对比与核心优势

相对于同参数的普通非屏蔽电感:

  • EMI性能提升30%以上,减少整机EMI整改成本;
  • 相对于同体积的其他品牌电感:DCR低10%15%,损耗更小、发热更低(连续工作时表面温度比竞品低3℃5℃);
  • 饱和电流(1.8A)比额定电流高87.5%,峰值负载能力更强,适配负载波动较大的场景(如智能家居设备的待机/工作切换);
  • 符合RoHS环保标准,无铅无卤,适配出口产品需求。

该产品以“平衡性能、体积与成本”为核心,是中低功率电源管理领域的高性价比选型,可覆盖大多数小型电子设备的电源设计需求。

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