WMSIC Electronic Components

SXN SMMS1070-4R7M Inductor SMMS1070

ModelSMMS1070-4R7M
PackageSMD,11.2x10.2mm
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 SMMS1070-4R7M
Type
SXN
Minimum package
400 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMMS1070-4R7M
Electronic Component
1
Package
SMD,11.2x10.2mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
5g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265571451
Current
10A
Resistor(DCR)
12mΩ
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.

SMMS1070-4R7M 功率电感产品概述

一、产品基本信息

SMMS1070-4R7M是顺翔诺(SXN)品牌推出的贴片式功率电感,专为中大功率、大电流场景的电路设计优化。型号标识清晰对应核心特性:

  • “SMMS”为品牌功率电感系列;
  • “1070”对应封装尺寸(长×宽≈11.2mm×10.2mm);
  • “4R7”表示标称电感量4.7μH;
  • “M”代表精度±20%。

该产品定位为“高电流、低损耗、小型化”的通用功率电感,适配多领域的电源与滤波需求。

二、核心电气参数详解

电气参数是功率电感的核心指标,直接决定其适用场景:

  1. 电感量与精度:标称4.7μH,精度±20%(实际范围3.76μH~5.64μH),满足大多数功率电路对电感量的常规波动要求;
  2. 额定电流(Iₙ):10A(连续工作电流),指25℃环境下,电感持续工作时温升不超过40℃的最大电流,确保长期稳定运行;
  3. 饱和电流(Iₛₐₜ):16A(磁芯饱和临界电流),若电流超过此值,磁芯磁导率急剧下降,电感量会降至标称值的30%以下,可能导致电路失效,需严格控制;
  4. 直流电阻(DCR):12mΩ(毫欧级),低DCR意味着大电流下损耗极低——10A电流时损耗仅1.2W,有效提升电源转换效率,降低设备温升。

三、物理特性与封装

SMMS1070-4R7M采用表面贴装(SMD)封装,具体参数:

  • 尺寸:11.2mm(长)×10.2mm(宽),高度约5mm(常规功率电感高度);
  • 安装方式:适配标准SMT生产线,支持回流焊、波峰焊工艺,自动化生产效率高;
  • 结构:采用优质铁氧体磁芯与镀锡铜线绕制,磁屏蔽设计减少电磁干扰(EMI)。

紧凑封装可集成于高密度PCB中,尤其适合对空间要求严格的设备(如服务器电源、小型化工业控制器)。

四、典型应用场景

凭借大电流承载、低损耗与小型化优势,该电感广泛应用于:

  1. 开关电源领域:
    • AC/DC电源(服务器、通信基站):支撑高功率输出,低DCR降低电源损耗;
    • DC/DC转换器(笔记本、游戏主机):适配小型化设计,稳定大电流输出;
  2. 新能源与汽车电子:
    • 电动车DC/DC变换:承受高电流波动,保障电压稳定;
    • BMS滤波:抑制电磁干扰,提升电池管理系统可靠性;
  3. 工业控制与消费电子:
    • PLC电源滤波:过滤噪声,增强系统抗干扰能力;
    • 高端LED驱动:支持大电流LED阵列,减少发热。

五、性能优势与注意事项

性能优势

  1. 高电流与饱和能力:额定10A、饱和16A,覆盖中大功率场景,避免磁芯饱和失效;
  2. 低损耗高效率:12mΩ DCR显著降低功率损耗,减少散热需求;
  3. 小型化兼容:紧凑封装适配高密度PCB,兼容自动化生产;
  4. 宽温可靠性:常规耐温范围-40℃~85℃,适合恶劣环境应用。

注意事项

  1. 电路电流需严格控制在16A以下,避免电感量骤降;
  2. 贴装遵循SMT工艺(如回流焊温度曲线),防止虚焊或磁芯损坏;
  3. 高温环境下需预留散热空间,避免温升超过额定值;
  4. 布局远离高频干扰源,或增加屏蔽,保障电路稳定性。

该产品平衡了“大电流、低损耗、小型化”三大核心需求,是电源设计中高性价比的功率电感选择。

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