WMSIC Electronic Components

SXN SM4532-2R2MT Inductor SM4532

ModelSM4532-2R2MT
PackageSMD,4.5x4mm
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 SM4532-2R2MT
Type
SMD, 4.5X4MM
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SM4532-2R2MT
Electronic Component
1
Package
SMD,4.5x4mm
Type
Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
3.505g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0265818025
Current
1.75A
Resistor(DCR)
71.2mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

SM4532-2R2MT 功率电感产品概述

一、产品基本信息

SM4532-2R2MT是顺翔诺(SXN)品牌推出的非屏蔽贴片功率电感,主要面向中低功率电子设备的电源转换、滤波及储能场景设计。型号命名规则清晰:

  • “SM”代表贴片封装(Surface Mount Device);
  • “4532”对应封装尺寸(公制下约4.5mm×4.0mm);
  • “2R2”表示电感标称值为2.2μH(“R”替代小数点);
  • “MT”为系列标识,关联精度及制造工艺。

该产品定位为常规功率电感,兼顾小型化与成本优势,适合对电磁干扰(EMI)要求不苛刻的电路设计。

二、核心电气参数解析

SM4532-2R2MT的参数针对中低功率需求优化,关键指标及实际意义如下:

1. 电感值与精度

电感标称值为2.2μH,精度±20%——该范围可满足多数DC-DC转换器、LED驱动等电路的电感量需求,无需额外高精度校准,降低系统设计复杂度。

2. 额定电流与饱和电流

  • 额定电流(Irms):1.75A:指电感在连续工作状态下允许通过的最大电流,此时电感值变化≤10%,是电路长期稳定工作的核心限制参数;
  • 饱和电流(Isat):2.8A:指电流超过此值时,磁芯饱和导致电感值下降约30%(厂商标准),仅允许短时间(如脉冲电路)超过,长期超饱和会导致电感性能衰减、发热加剧。

3. 直流电阻(DCR)

直流电阻为71.2mΩ,反映绕组的直流损耗。较低的DCR可减少电流通过时的热损耗,提升电源转换效率,尤其适合对能效有要求的小型设备。

三、封装与物理特性

1. 封装形式

采用SMD贴片封装,尺寸为4.5mm×4.0mm×1.6mm(典型厚度,需参考 datasheet),体积紧凑,可有效节省PCB布局空间,适配手机、平板、路由器等小型化设备的高密度设计。

2. 非屏蔽特性

该产品为非屏蔽电感,磁芯无额外屏蔽层。优势在于成本更低、电感量一致性较好;但电磁辐射略高于屏蔽电感——若电路对EMI(如射频模块)要求严格,需配合屏蔽罩或合理布局降低干扰。

3. 贴装兼容性

符合常规贴片工艺要求,可通过自动化贴片机批量生产,贴装效率高,适合大规模制造。

四、典型应用场景

SM4532-2R2MT的参数特性使其适配以下场景:

1. 中低功率DC-DC转换器

如手机/平板的电池供电转换电路(5V转3.3V/1.8V)、路由器/机顶盒的电源模块(12V转5V)等。额定电流1.75A可满足多数移动设备及小型家电的电源需求,2.2μH电感适配常见开关频率(几百kHz至几MHz)。

2. LED驱动电路

小功率LED照明(如台灯、屏幕背光)的恒流驱动电路中,电感用于储能及滤波,该产品的尺寸与电流参数可适配1-3W LED的驱动模块。

3. 小型滤波电路

如音频设备的电源滤波、USB接口的EMI滤波(配合电容),非屏蔽电感的成本优势可降低系统总成本。

五、产品优势与注意事项

1. 核心优势

  • 小型化设计:4.5×4.0mm封装适配高密度PCB,满足移动设备轻薄化需求;
  • 成本可控:非屏蔽结构降低材料与工艺成本,适合量产;
  • 参数稳定:电感精度±20%满足常规需求,额定电流明确,设计可靠性高;
  • 贴装高效:SMD封装兼容自动化生产,提升制造效率。

2. 注意事项

  • EMI防护:非屏蔽电感有电磁辐射,若电路对EMI敏感(如射频模块),需远离敏感电路或增加屏蔽;
  • 电流限制:避免长期超过额定电流1.75A,峰值电流不超过2.8A(短时间脉冲除外);
  • 温度范围:参考 datasheet确认工作温度(通常-40℃~125℃),避免高温环境长期工作。

六、总结

SM4532-2R2MT是一款高性价比的非屏蔽贴片功率电感,以2.2μH电感值、1.75A额定电流为核心,适配中低功率电源转换、LED驱动等场景。其紧凑封装与可控成本,使其成为移动设备、小型家电的理想选择。设计时需注意非屏蔽特性带来的EMI问题,合理布局可充分发挥性能优势。

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