WMSIC Electronic Components

SXN SMDRI127-330MT Inductor SMDRI127

ModelSMDRI127-330MT
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

18 specifications

Core information

Product name
SXN SMDRI127-330MT
Type
SXN
Minimum package
500

Technical parameters

Electronic Component
SXN
Electronic Component
SMDRI127-330MT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
4.768g
Inductor
33uH
Electronic Component
1
Electronic Component
BM0264880216
Current
3A
Resistor(DCR)
65mΩ
Electronic Component
500
and Current(Isat)
5.5A

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

SMDRI127-330MT 功率电感产品概述

一、产品核心身份与定位

SMDRI127-330MT是顺翔诺(SXN)品牌推出的磁胶屏蔽贴片功率电感,专为中小功率电子设备的电源电路设计,兼顾储能、滤波与电磁干扰(EMI)抑制功能。产品采用SMD贴片封装,尺寸为12.3×12.3mm,适配自动化表面贴装工艺,可广泛应用于消费电子、通信、车载等领域的电源模块中,是替代传统开放式电感的高可靠性选择。

二、关键电气性能参数详解

该电感的核心参数直接决定其应用场景与性能表现,具体如下:

  1. 电感量与精度:标称电感值33μH,精度±20%,实际范围覆盖26.4μH~39.6μH,满足大多数电源电路对储能电感量的需求(如DC-DC降压转换器的输出滤波);
  2. 电流特性:
    • 额定电流(Iₐₙₑₙₑₙ):3A,指电感持续工作时电感量变化≤10%的最大电流,是电源设计需重点匹配的参数;
    • 饱和电流(Iₛₐₜ):5.5A,指电感量下降30%时的临界电流,可应对电路中瞬间峰值电流(如负载突变、启动冲击),避免电感饱和导致效率骤降;
  3. 直流电阻(DCR):65mΩ,低电阻意味着额定电流下功耗仅约0.585W(3²×0.065),发热小、转换效率高,适合快充、车载等对效率敏感的场景。

三、磁胶屏蔽设计的独特优势

区别于普通开放式电感,SMDRI127-330MT的磁胶屏蔽结构带来三大核心价值:

  1. EMI抑制能力强:磁胶包裹磁芯大幅减少漏磁,降低对周边电路的电磁干扰,符合消费电子、通信设备的EMC标准;
  2. 机械可靠性高:磁胶兼具固定磁芯与缓冲振动的作用,可承受运输、使用中的机械振动(如车载颠簸),减少磁芯碎裂风险;
  3. 低噪声表现:屏蔽结构降低磁芯振动产生的可闻噪声,提升设备使用体验(如静音电源、笔记本电脑)。

四、物理封装与典型应用场景

4.1 封装与安装特性

产品采用12.3×12.3mm SMD贴片封装,兼容标准SMT生产线贴装流程,焊接需遵循顺翔诺推荐的回流焊曲线(峰值温度≤245℃,时间≤10s),避免过热损坏磁芯或绕组。

4.2 典型应用场景

结合参数与屏蔽特性,该电感适用于以下场景:

  • DC-DC转换器:手机快充、平板、笔记本的降压/升压电源模块(3A额定电流匹配中小功率需求);
  • 电源滤波器:路由器、交换机等通信设备的电源输入滤波,抑制共模/差模干扰;
  • LED驱动:小功率LED照明(台灯、背光)的恒流驱动电源;
  • 车载电子:12V车载电源模块(行车记录仪、车载充电器),适应宽温与振动环境。

五、品牌与可靠性保障

顺翔诺(SXN)作为专业功率电感制造商,SMDRI127-330MT需经过多重可靠性测试:

  1. 环境测试:工作温度范围-40℃~+125℃,耐湿测试(95%RH、40℃下1000h);
  2. 机械测试:振动测试(10~2000Hz、1.5g加速度)、冲击测试(100g、11ms);
  3. 环保合规:符合RoHS 2.0标准,无铅焊接,满足全球市场环保要求。

六、选型与应用注意事项

  1. 电流匹配:实际工作电流需小于3A(建议留20%~30%余量),瞬间峰值电流需小于5.5A;
  2. 布局优化:安装时尽量靠近DC-DC输出端,减少线路长度以降低寄生电感;
  3. 焊接规范:手工焊接烙铁温度≤350℃、时间≤3s,避免磁芯受热退磁。

该产品凭借稳定的电气性能、屏蔽设计优势与高可靠性,成为中小功率电源电路的优选电感之一。

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