WMSIC Electronic Components

SXN SMCM4520-231T Inductor SMCM4520

ModelSMCM4520-231T
PackageSMD,4.7x4.5x2mm
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 SMCM4520-231T
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMCM4520-231T
Electronic Component
1
Package
SMD,4.7x4.5x2mm
Electronic Component
Common Mode Filter
Electronic Component
0.225g
Electronic Component
1
Channel Count
2
Electronic Component
BM0265818040
Operating Temperature
40℃~+125℃
Resistor
10MΩ
Voltage
50V
Current
1.8A
@Frequency
230Ω@100MHz
Resistor(DCR)
45mΩ

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

SMCM4520-231T共模滤波器产品概述

SMCM4520-231T是顺翔诺(SXN)推出的小型化表面贴装(SMD)共模滤波器,专为抑制电子系统中的共模电磁干扰(EMI)设计,可在不影响差模信号传输的前提下衰减高频噪声,适配高密度PCB布局与宽温环境,是消费电子、工业控制等领域的实用滤波方案。

一、产品核心定位与功能

该滤波器为双路共模滤波器件,核心作用是隔离并衰减电路中的共模噪声——共模噪声是两根传输线(如数据线、电源线)上相位相同的干扰信号,易导致设备EMC不达标。SMCM4520-231T通过内部绕组的阻抗设计,对共模噪声呈高阻抗、对差模信号呈低阻抗,实现“滤噪不损信号”,简化系统EMC设计,降低额外器件成本。

二、关键性能参数解析

参数设计针对性覆盖中低功率设备需求:

  1. 通道数:2路
    双路并行支持两路独立信号(如数据线对、电源线对)同时滤波,无需额外并联单路器件,节省PCB空间。
  2. 额定电流:1.8A(持续)
    满足12V/1.8A电源模块、USB3.0数据线等中低功率电路需求,持续工作无过热风险。
  3. 共模阻抗:230Ω@100MHz
    核心滤波指标:100MHz是电子设备常见干扰频段(高速数据线谐波、电源纹波高频分量),230Ω高阻抗有效衰减该频段噪声,且不影响差模信号完整性。
  4. 额定电压:50V(直流/交流)
    覆盖12V、24V工业电源等常见电压,满足安全工作要求。
  5. 直流电阻(DCR):45mΩ
    极低阻值减少功率损耗(P=I²R),适合电池供电设备(智能手机、蓝牙耳机),降低发热并延长续航。
  6. 绝缘电阻:≥10MΩ
    保障通道间、通道与地的绝缘性能,防止漏电或信号串扰,符合电气安全标准。

三、封装与尺寸规格

采用SMD封装,尺寸为4.7mm×4.5mm×2mm(长×宽×高):

  • 适配高密度PCB布局,可用于智能手表、无线耳机等便携式设备;
  • 贴片式封装便于自动化贴装,提高生产效率;
  • 结构抗振动、抗冲击,适合车载、工业传感器等振动环境设备。

四、典型应用场景

  1. 高速数据接口:USB2.0/3.0、HDMI、LVDS等接口滤波,提升信号质量,避免电磁辐射超标;
  2. 电源滤波:低功率DC-DC转换电路、电池供电系统滤波,过滤电源纹波高频噪声;
  3. 消费电子:智能手机、智能音箱等内部信号/电源线路滤波,满足小体积与EMC要求;
  4. 工业控制:小型PLC、IIoT终端滤波,适应-40℃~+125℃宽温环境。

五、核心性能优势

  1. 精准滤波:针对100MHz关键频段的230Ω高阻抗,精准衰减噪声;
  2. 低损耗高效:45mΩ DCR减少功率损耗,降低发热;
  3. 小型化适配:4.7×4.5×2mm封装,节省PCB空间;
  4. 宽温稳定:-40℃~+125℃工作温度,满足极端环境;
  5. 高可靠性:双路设计稳定,绝缘电阻达标,适合长期工作。

六、可靠性与环境适应性

  • 温度适应性:低温无性能衰减,高温无参数漂移;
  • 抗干扰性:高低阻抗设计隔离内外噪声;
  • 电气安全:绝缘电阻≥10MΩ,额定电压50V,避免漏电短路。

综上,SMCM4520-231T是性能均衡的小型化共模滤波器,可有效解决电子设备EMI问题,适配多领域中低功率电路设计。

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