WMSIC Electronic Components

SXN SMDRI129-220MT Inductor SMDRI129

ModelSMDRI129-220MT
PackageSMD,12.5x12.5x10mm
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 SMDRI129-220MT
Type
SXN
Minimum package
400 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMDRI129-220MT
Electronic Component
1
Package
SMD,12.5x12.5x10mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
5.875g
Inductor
22uH
Electronic Component
1
Electronic Component
BM0265793576
Current
4.95A
Resistor(DCR)
38mΩ
Electronic Component
Electronic Component
Electronic Component
400

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

SMDRI129-220MT 磁胶屏蔽功率电感产品概述

一、产品核心定位与基本属性

SMDRI129-220MT是顺翔诺(SXN)推出的一款磁胶屏蔽贴片功率电感,专为需要高效滤波、低损耗且对电磁干扰(EMI)敏感的功率电路设计。作为贴片式(SMD)电感,其紧凑的物理尺寸适配各类小型化、高密度电子设备的PCB布局需求,是开关电源、车载电子等领域的实用选型。

二、关键电气参数深度解析

该电感的核心电气参数直接决定其应用适配性,具体解析如下:

  1. 电感值与精度:标称电感值为22μH,精度±20%(实际范围17.6μH~26.4μH),满足大多数功率电路对电感容差的常规要求,无需额外精密匹配即可稳定工作;
  2. 额定电流与饱和电流:
    • 额定电流(Irms):4.95A,指持续工作时电感值变化不超过可接受范围(通常<10%)的最大电流,是电路设计中需重点关注的持续负载上限;
    • 饱和电流(Isat):5.12A,指磁芯开始饱和、电感值急剧下降(通常降至标称值30%以下)的临界电流,设计时需避免电路峰值电流超过此值,防止电感性能失效;
  3. 直流电阻(DCR):仅38mΩ,低电阻设计大幅降低电流通过时的功率损耗(P=I²R),提升电路能效,尤其适合对功耗敏感的设备(如便携式电子、车载电源)。

三、物理封装与工艺优势

  1. 封装规格:采用SMD贴片封装,尺寸为12.5×12.5×10mm(长×宽×高),属于中小功率电感的常规紧凑尺寸,便于PCB自动化贴装,同时在高密度布局中占用空间可控;
  2. 磁胶屏蔽工艺:区别于非屏蔽电感,磁胶屏蔽可有效约束磁通量,减少对外电磁辐射,降低对周边电路的干扰,适配EMC(电磁兼容性)要求严格的场景(如车载电子、医疗设备);
  3. 结构可靠性:贴片式设计配合稳定的磁芯与绕组工艺,可耐受常规焊接温度(符合IPC标准),批量生产一致性好,适合工业化大规模应用。

四、典型应用场景

结合该电感的参数与工艺特点,其主要应用方向包括:

  1. 开关电源模块:如笔记本电脑、平板的DC-DC转换器,LED驱动电源(需稳定滤波电感),低DCR可减少电源损耗,提升续航;
  2. 车载电子系统:如车载充电器、中控屏电源,磁胶屏蔽满足车载EMC标准,额定电流适配中等功率负载;
  3. 消费电子与家电:如智能电视、路由器的电源管理单元,紧凑封装适配小型化产品设计;
  4. 工业控制电路:如小型PLC、伺服驱动器的辅助电源,稳定的电感性能保障工业环境下的可靠性。

五、品牌与选型建议

顺翔诺(SXN)作为专业电感制造商,该产品经过出厂参数校准,批量一致性可靠。选型时需注意:

  • 电路持续负载电流需低于4.95A,峰值电流不超过5.12A;
  • 若需更高EMC要求,可结合该电感的屏蔽特性优化PCB布局;
  • PCB焊盘设计需匹配12.5×12.5mm的封装尺寸,确保焊接可靠性。

该电感凭借平衡的性能参数与工艺优势,成为中小功率电路中兼顾效率、EMI与成本的高性价比选型。

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