WMSIC Electronic Components

BOURNS SRF0504-191Y

ModelSRF0504-191Y
Package4 PC
BrandBOURNS
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
BOURNS SRF0504-191Y
Type
BOURNS
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SRF0504-191Y
Electronic Component
1
Package
4 PC
Electronic Component
Common Mode Filter
Electronic Component
0.598g
Voltage
125V
Electronic Component
1
Channel Count
2
Electronic Component
BM0265677877
Operating Temperature
40℃~+125℃
Voltage
50V
Current
5A
Inductor@Frequency
600nH@100kHz
@Frequency
190Ω@100MHz

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

BOURNS SRF0504-191Y 共模滤波器产品概述

BOURNS推出的SRF0504-191Y是一款专为电磁干扰(EMI)抑制设计的双路共模滤波器,凭借均衡的电气性能、宽温可靠性及紧凑封装,适用于工业、通信、车载等多场景的干扰抑制需求,是电路EMC设计的实用选型。

一、产品定位与核心功能

该滤波器属于共模电感类EMI器件,核心作用是精准抑制线路中的共模干扰:
当电流以共模形式(如电源线路中流向负载与返回电源的电流同相)传输时,绕组产生的磁场叠加,显著提升电感量以阻碍共模电流;而差模电流(信号/电源的正常传输形式)通过时,绕组磁场相互抵消,不影响信号完整性。双路设计可同时处理两路独立线路的共模干扰,简化电路布局,减少额外器件使用。

二、关键电气参数解析

该产品的参数经过优化,兼顾干扰抑制能力与功率传输效率:

  1. 电感与通道特性:双路(2通道)设计,100kHz频率下共模电感量为600nH——此频率段是开关电源纹波、低频电磁干扰的主要范围,600nH的电感量可有效衰减中低频共模噪声;
  2. 电流与电压耐受:额定电流5A(持续工作电流),适配中等功率电源线路(如12V/5A、24V/5A电源);额定电压50V(工作电压上限),耐电压125V(绝缘耐压),可承受短时过压冲击,降低电路故障风险;
  3. 高频干扰抑制:100MHz频率下阻抗达190Ω——高频共模干扰(如射频噪声)的衰减依赖阻抗特性,190Ω的阻抗可有效削弱100MHz左右的高频干扰,兼顾中高频抑制;
  4. 低损耗设计:直流电阻(DCR)仅20mΩ——小DCR意味着电流通过时电压降小、发热低,提升电源效率,避免因损耗导致的温度升高影响器件寿命。

三、结构与封装特性

该滤波器采用水平式4引脚PCB封装,结构设计具备以下优势:

  • 紧凑布局:水平安装方式节省PCB垂直空间,适合高密度电路设计(如小型电源模块、通信接口板);
  • 安装便捷:4引脚设计适配标准PCB焊接工艺(表面贴装/插装兼容),批量生产兼容性强,降低生产难度;
  • 磁芯与绕组:采用高磁导率磁芯(结合宽温特性推测为铁氧体或合金磁芯),绕组使用低电阻导线,保障电感量稳定性与低损耗,长期工作性能可靠。

四、工作环境与可靠性

该产品的环境适应性满足严苛场景需求:

  • 宽温范围:工作温度覆盖-40℃至+125℃,可在工业低温环境(如北方户外设备)、高温环境(如汽车发动机舱周边、电源模块内部)稳定工作;
  • 绝缘可靠性:125V耐电压测试通过,绝缘性能稳定,避免线路间短路风险;
  • 长寿命设计:低DCR带来的低热损耗,结合宽温耐受能力,可长期稳定工作于连续负载状态,降低维护成本。

五、典型应用场景

  1. 工业电源模块:用于开关电源、DC-DC转换器的输入/输出滤波,抑制电源纹波与电磁干扰,满足工业设备EMC标准(如EN55032);
  2. 通信设备接口:如以太网(Ethernet)、USB 3.0接口的共模干扰抑制,避免信号传输中的噪声干扰,保障数据完整性;
  3. 车载电子:车载充电器、传感器线路(如温度/压力传感器)的EMI滤波,适应汽车环境的温度变化与振动;
  4. 消费电子:手机充电器、机顶盒、LED驱动电源的输入滤波,降低对外辐射干扰,符合安规要求。

总结而言,BOURNS SRF0504-191Y共模滤波器凭借双路设计、中高频干扰抑制能力、宽温可靠性及低损耗特性,成为工业、通信、车载及消费电子领域EMI抑制的实用选择,适配多种中等功率与宽温场景的电路需求。

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