WMSIC Electronic Components

SXN SMMS252010-3R3M Inductor SMMS252010

ModelSMMS252010-3R3M
Package1008
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 SMMS252010-3R3M
Type
SXN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMMS252010-3R3M
Electronic Component
1
Package
1008
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.06g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0265571449
Current
2.1A
Resistor(DCR)
100mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

SMMS252010-3R3M功率电感产品概述

一、产品定位与核心特性

SMMS252010-3R3M是顺翔诺(SXN)针对小型化、低功耗电源系统推出的贴片功率电感,核心围绕“小体积兼容高密度设计、低损耗提升转换效率、充足电流裕量保障稳定性”三大方向优化,适配移动电子、IoT终端、便携式设备等对空间和性能有双重要求的场景。

二、关键参数详解

该电感的核心参数直接决定其应用范围,需重点关注以下指标:

  1. 电感值与精度:标称3.3μH,精度±20%,满足常规DC-DC转换器、滤波电路的储能/滤波需求,避免因电感值偏差导致输出电压波动;
  2. 额定电流(Irms):2.1A,指连续工作状态下允许的最大电流(电感值变化≤±10%),是电源设计中“连续负载”的核心参考;
  3. 饱和电流(Isat):2.5A,指电感值下降30%时的极限电流,为瞬间过载(如设备启动峰值、负载突变)提供安全裕量,避免电感饱和导致输出电压跌落;
  4. 直流电阻(DCR):100mΩ,即电感线圈的直流阻抗,低DCR意味着导通损耗小(如1A负载下损耗仅0.1W),可降低电源发热、提升转换效率;
  5. 封装:SMD-2(2引脚贴片),尺寸2.0mm×2.5mm,属于超小型化封装,可节省PCB空间30%以上(对比同电流段常规电感)。

三、封装与物理特性

该电感采用合金磁芯+漆包线绕制工艺,兼顾高频损耗低、饱和电流高的特点:

  • 物理尺寸:长2.5mm×宽2.0mm×高1.0mm(行业常规252010封装定义),引脚间距符合主流SMD贴装规范,可兼容自动化生产;
  • 磁芯材质:选用低损耗合金磁芯,在1MHz以下开关频率内损耗比铁氧体磁芯降低约20%,适合中高频电源拓扑;
  • 引脚设计:镀锡引脚抗氧化性强,焊接牢固度符合IPC标准,可承受多次回流焊(峰值温度240-260℃,时间≤10秒)。

四、典型应用场景

结合参数特性,该电感主要应用于以下场景:

  1. 移动电子设备:智能手机、平板电脑的CPU/内存降压电路(Buck转换器),满足1-2MHz开关频率下的储能需求;
  2. IoT终端:智能穿戴(手表、手环)、传感器节点的低功耗电源模块,小体积适配设备轻薄化设计;
  3. 便携式产品:移动电源、蓝牙耳机的稳压电路,低DCR减少电池损耗,提升续航时间;
  4. 小型电源适配器:5V/1A、9V/0.5A等小功率适配器的滤波电感,替代传统插件电感实现小型化。

五、性能优势分析

  1. 小体积高密度:2×2.5mm封装可在1cm² PCB上集成10+个电感,适配高密度电源设计;
  2. 低损耗高效率:100mΩ DCR比同电流段竞品平均低15%,在1A负载下电源转换效率可提升2-3个百分点;
  3. 电流裕量充足:额定电流2.1A+饱和电流2.5A的组合,可应对设备启动、负载突变等峰值场景,避免性能下降;
  4. 宽温适应性:工作温度范围-40℃~+125℃(行业常规),可满足户外、工业场景的环境要求。

六、选型与应用注意事项

  1. 电流设计:连续负载电流需≤2.1A,瞬间峰值电流≤2.5A,若需长期过载需降额使用(建议降额20%);
  2. 散热优化:高负载下(如1.5A以上)需在电感下方PCB增加铜箔面积(建议≥2层铜箔),降低热阻;
  3. 焊接规范:避免手工焊(易过热损坏磁芯),优先采用回流焊,焊接后需检查引脚是否虚焊;
  4. 拓扑匹配:适合Buck、Boost等DC-DC拓扑,不建议用于高频(>2MHz)谐振电路(合金磁芯高频损耗增加)。

该电感通过了RoHS、REACH等环保认证,可满足全球市场的合规要求,是小型化电源系统的高性价比选择。

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