WMSIC Electronic Components

SXN SMCM4520-901T Inductor SMCM4520

ModelSMCM4520-901T
PackageSMD-4P,4.7x4.5mm
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 SMCM4520-901T
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMCM4520-901T
Electronic Component
1
Package
SMD-4P,4.7x4.5mm
Electronic Component
Common Mode Filter
Electronic Component
0.233g
Electronic Component
1
Channel Count
2
Electronic Component
BM0265818042
Operating Temperature
40℃~+125℃
Resistor
10MΩ
Voltage
50V
Current
1.3A
@Frequency
650Ω
Resistor(DCR)
68mΩ

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

SMCM4520-901T共模滤波器产品概述

SMCM4520-901T是顺翔诺(SXN)推出的紧凑型贴片式共模滤波器,针对低中功率电路的电磁干扰(EMI)抑制需求设计,兼具小型化、宽温适应性与高效滤波性能,可广泛应用于消费电子、汽车电子、工业控制等领域。

一、产品定位及核心应用场景

该产品属于双路共模滤波器件,核心作用是抑制电路中的共模噪声(即两条导线相对于地的相同相位干扰),而非差模噪声。设计定位为小电流、中高压场景的紧凑型滤波方案,适配对PCB空间敏感的高密度电路设计,典型应用包括:

  • 汽车电子:车载传感器(胎压监测、温度传感器)信号滤波、车载音响电源干扰抑制;
  • 消费电子:智能手机、平板的充电电路滤波、WiFi/蓝牙模块的EMI抑制;
  • 工业控制:PLC输入输出接口滤波、小型电机驱动电路噪声抑制;
  • 通信设备:小型基站、路由器的电源与信号线路滤波。

二、关键技术参数解析

SMCM4520-901T的核心参数明确了性能边界与适用范围,关键指标及意义如下:

  1. 通道数:2路(双绕组共模结构,可同时对两条导线进行滤波,适配差分信号或双电源线路);
  2. 额定电流:1.3A(持续工作电流,短时间过载不超过1.5倍,需避免长期过载);
  3. 共模阻抗:900Ω@100kHz(针对100kHz频率段的共模干扰抑制效果显著,是核心滤波指标);
  4. 额定电压:50V(适用于直流/交流电压≤50V的电路,如12V/24V/48V系统);
  5. 直流电阻(DCR):68mΩ(极低直流损耗,减少电路功率消耗与发热);
  6. 绝缘电阻:≥10MΩ(绕组与外壳、绕组间的绝缘性能,满足电气安全要求)。

三、封装与物理特性

产品采用SMD贴片封装,尺寸为4.7mm×4.5mm×2mm(长×宽×高),属于紧凑型设计:

  • 小型化优势:大幅节省PCB空间,适配手机、智能穿戴等小型化设备;
  • 贴装兼容性:符合标准贴片规范,支持自动化贴装与回流焊,生产效率高;
  • 结构稳定性:封装采用耐高温材料,可承受焊接高温冲击,长期使用无变形。

四、可靠性与环境适应性

SMCM4520-901T具备较强的环境适应性,满足多数场景的可靠性要求:

  • 宽温工作:-40℃~+125℃,可在汽车发动机舱(高温)、北方低温户外(如充电桩)稳定工作;
  • 绝缘性能:绝缘电阻≥10MΩ,符合GB/T 14023电磁兼容标准;
  • 抗振动冲击:贴片结构紧凑,焊接后抗振动能力强,适配汽车行驶等振动环境。

五、选型与使用注意事项

为确保滤波效果与器件可靠性,使用时需注意:

  1. 电流匹配:电路持续电流不得超过1.3A,感性负载(如电机)需预留20%~30%余量;
  2. 电压限制:不得超过50V额定电压,避免绝缘击穿;
  3. 布局建议:尽量靠近干扰源(如电源输入端)或负载端,减少滤波前后走线耦合;
  4. 焊接工艺:回流焊峰值温度240℃~250℃,时间≤10s,避免高温损坏绕组;
  5. 干扰匹配:若目标干扰频率偏离100kHz,需参考SXN提供的频率-阻抗曲线确认效果。

六、总结

SMCM4520-901T以小型化、宽温、高效滤波为核心优势,适配低中功率电路的EMI抑制需求,是消费电子、汽车电子等领域的高性价比选择。其双路共模结构、低DCR损耗与紧凑型封装,可有效解决共模噪声问题,同时满足高密度PCB布局与极端环境的可靠性要求。

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