WMSIC Electronic Components

SXN SMMS0850-330M Inductor SMMS0850

ModelSMMS0850-330M
PackageSMD,8.5x8mm
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 SMMS0850-330M
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMMS0850-330M
Electronic Component
1
Package
SMD,8.5x8mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
2g
Inductor
33uH
Electronic Component
1
Electronic Component
BM0265818033
Current
3.2A
Resistor(DCR)
140mΩ
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.

SMMS0850-330M 功率电感产品概述

SMMS0850-330M是顺翔诺(SXN)推出的一体成型贴片功率电感,专为中功率DC-DC转换、电源滤波及EMI抑制场景设计,具备小体积、大电流、低损耗、抗干扰的核心优势,可满足消费电子、工业电源、车载电子等领域的高密度PCB设计需求。

一、产品核心定位与应用场景

该电感属于SMMS0850系列,定位为中功率高频电感,主要服务于需要稳定电感量、低损耗及高可靠性的电路场景:

  • 消费电子:笔记本电脑、平板电脑、智能电视的DC-DC降压模块(如12V→5V/3.3V转换);
  • 工业领域:PLC可编程控制器、伺服驱动器的辅助电源滤波;
  • 车载电子:车载充电器、仪表盘、小功率传感器模块(耐振动特性适配车载环境);
  • 通信设备:路由器、交换机的电源纹波抑制与EMI滤波。

二、关键电气性能参数详解

SMMS0850-330M的电气参数经过优化,平衡了电感量、电流承载能力与损耗:

  1. 电感值与精度:标称33μH,精度±20%(J级),满足大多数电源电路对电感量的误差要求,可稳定控制输出纹波;
  2. 电流承载能力:
    • 额定电流(Idc):3.2A——指电感长期工作时(温升≤行业标准40K)允许的最大直流电流,保障连续负载下的可靠性;
    • 饱和电流(Isat):6A——指电感量下降30%时的临界电流,可应对瞬间负载波动(如启动、负载突变),避免电感饱和导致电路失效;
  3. 直流电阻(DCR):140mΩ——低DCR设计显著降低导通损耗(P=I²R),大电流下发热少,提升电源转换效率;
  4. 频率特性:一体成型结构使其在100kHz~5MHz范围内阻抗特性稳定,适配主流开关电源的工作频率。

三、物理特性与封装优势

该电感采用SMD贴片封装,尺寸为8.5mm(长)×8mm(宽)×5mm(高),具备以下物理优势:

  1. 小体积高密度:紧凑尺寸适配PCB布局紧凑的产品(如超薄笔记本、小型车载模块);
  2. 模压成型结构:磁芯与绕组一体模压,无松散部件,耐振动(10G~2000Hz)、耐冲击(1000G),适合 harsh 环境;
  3. 焊盘可靠性:SMD焊盘设计适配自动化贴装(SMT),焊接牢固,降低虚焊风险;
  4. 磁路封闭性:闭合磁路减少漏磁,EMI性能优于传统绕线电感,降低对周边敏感电路的干扰。

四、一体成型电感的技术亮点

对比传统绕线功率电感,SMMS0850-330M的一体成型工艺带来三大核心优势:

  1. EMI抑制能力强:闭合磁路使漏磁降低30%以上,减少电磁干扰,简化电路EMI设计;
  2. 一致性优异:模压成型过程中电感量、DCR的一致性优于传统绕线,批量生产时参数波动小;
  3. 耐环境性能佳:无外露绕组,抗潮湿、抗盐雾(符合IPC标准),延长产品寿命。

五、选型参考与注意事项

  1. 适用场景匹配:当电路需求为33μH电感、额定电流3A左右、瞬间电流≤6A、DCR≤150mΩ时,该电感为优选;
  2. 安装注意:贴装时需确保焊盘与PCB匹配,焊接温度符合SMT标准(230℃~260℃);
  3. 散热建议:大电流工作时(如接近3.2A),可在PCB背面增加散热铜箔,降低温升。

综上,SMMS0850-330M凭借小体积、大电流、低损耗、高可靠性的特点,成为中功率电源电路的高性价比选择,可覆盖多领域的应用需求。

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