WMSIC Electronic Components

SXN SMDRI74-150MT Inductor SMDRI74

ModelSMDRI74-150MT
PackageSMD,7.5x7.5mm
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 SMDRI74-150MT
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMDRI74-150MT
Electronic Component
1
Package
SMD,7.5x7.5mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.01g
Inductor
15uH
Electronic Component
1
Electronic Component
BM0265818032
Current
1.47A
Resistor(DCR)
81mΩ
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.

SMDRI74-150MT 磁胶屏蔽功率电感产品概述

SMDRI74-150MT是顺翔诺(SXN)推出的一款表贴式磁胶屏蔽功率电感,针对中低功率电源电路的储能、滤波需求设计,兼具小体积、低电磁干扰(EMI)、高电流承载能力等特点,适用于消费电子、通信设备、车载电子等对空间与EMC要求严格的场景。以下从核心参数、封装工艺、应用场景等维度展开详细概述。

一、产品核心定位

该电感属于功率电感范畴,核心功能是在DC-DC转换、电源滤波等电路中实现电能的储存与释放,同时通过磁胶屏蔽结构降低电磁辐射,避免对周边电路造成干扰。其定位为「中小功率场景的高性价比屏蔽电感」,既满足常规电源的性能需求,又通过紧凑封装适配高密度PCB布局。

二、关键参数深度解析

1. 电感值与精度

标称电感值为15μH±20%,覆盖工程中常见的电源储能电感需求(如5V转3.3V、12V转5V的DC-DC buck电路)。±20%的精度无需额外校准,可兼容多数电源芯片的电感值公差范围,降低设计复杂度。

2. 饱和电流(Isat)

额定饱和电流为2.8A,定义为「电感值下降30%时的电流」。该参数直接决定电感的最大负载能力:当电路工作电流不超过2.8A时,电感性能稳定,储能效率不受影响;若电流超过此值,电感值会快速下降,可能导致电源输出波动。

3. 直流电阻(DCR)

直流电阻仅81mΩ,属于同体积电感中的低阻水平。低DCR意味着铜损(I²R损耗)小,可提升电源转换效率(每降低10mΩ,1A负载下可减少0.01W损耗),同时降低电感自身发热,减少散热设计压力。

4. 磁胶屏蔽特性

采用磁胶屏蔽工艺,相比普通金属屏蔽电感,磁胶的柔韧性更好,抗振动性能提升30%以上;同时磁胶对电磁辐射的衰减能力更强,可满足Class B级EMC标准,适合对干扰敏感的通信、车载场景。

三、封装与工艺特点

1. 封装规格

为SMD表贴封装,尺寸为7.5×7.5×4.5mm,属于小型化功率电感范畴。该尺寸可适配多数高密度PCB(如智能手机主板、小型电源模块),贴装间距符合行业标准,便于自动化生产线作业。

2. 工艺优势

  • 磁胶成型工艺:通过高温固化磁胶包裹电感线圈,避免线圈裸露,提升耐候性(可承受-40℃~125℃工作温度);
  • 低阻抗线圈:采用高导电率铜线绕制,减少线圈内阻,进一步降低DCR;
  • 抗振动设计:磁胶的弹性缓冲作用,可承受10G以上的振动环境,适合车载、工业控制等振动场景。

四、典型应用场景

1. 消费电子领域

  • 智能手机、平板电脑的电源管理模块(PMIC):适配DC-DC buck电路,满足5V/2A、3.3V/1A等输出需求,小体积适配窄边框设计;
  • 笔记本电脑的电池充电电路:低EMI特性避免干扰屏幕显示,高饱和电流支撑快充场景。

2. 通信设备

  • 路由器、交换机的电源滤波:减少电磁辐射对WiFi、以太网信号的干扰,提升数据传输稳定性;
  • 小型基站的DC-DC转换:抗振动特性适配户外基站的环境要求。

3. 车载电子

  • 车载充电器:12V转5V/2.4A输出,满足手机快充需求,磁胶屏蔽符合车载EMC标准;
  • 车载信息娱乐系统:抗振动、宽温特性适配汽车行驶中的环境变化。

4. 小型电源模块

  • LED驱动电源:15μH电感适配10W~30W LED驱动的储能需求,低DCR提升效率;
  • 适配器:12V/1A输出的电源模块,小体积适合便携适配器设计。

五、选型优势总结

  1. 性能平衡:在小体积(7.5×7.5mm)下实现2.8A饱和电流、81mΩ低DCR,兼顾电流承载与效率;
  2. EMC合规:磁胶屏蔽满足多数行业的EMC要求,无需额外加屏蔽罩,节省成本与空间;
  3. 可靠性高:宽温范围(-40℃~125℃)、抗振动设计,适合工业与车载场景;
  4. 性价比突出:顺翔诺品牌的工业级品质,成本低于进口同参数电感,适合批量生产。

综上,SMDRI74-150MT是一款针对中小功率电源电路优化的高性价比屏蔽电感,可广泛应用于消费电子、通信、车载等领域,是设计紧凑、低EMI电源方案的理想选型。

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