WMSIC Electronic Components

BOURNS SRF2012A-801Y

ModelSRF2012A-801Y
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

20 specifications

Core information

Product name
BOURNS SRF2012A-801Y
Type
BOURNS
Unit
Electronic Component
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SRF2012A-801Y
Electronic Component
1
Package
4 PC
Electronic Component
Common Mode Filter
Electronic Component
0.046g
Voltage
250V
Electronic Component
1
Electronic Component
BM0265677899
Operating Temperature
55℃~+125℃
Resistor
10MΩ
Voltage
100V
Current
300mA
@Frequency
800Ω@100MHz

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

BOURNS SRF2012A-801Y 共模扼流器产品概述

SRF2012A-801Y是BOURNS公司推出的一款小型化表面贴装共模扼流器(Common Mode Choke,简称CMC),专为高频电磁干扰(EMI)抑制设计,兼具小体积、宽温适应性与高噪声抑制能力,适用于高密度PCB布局的电子设备。

一、产品定位与核心功能

作为一款共模扼流器,SRF2012A-801Y的核心作用是抑制电路中的共模噪声(即两条传输线中相位相同、方向相同的干扰信号),同时对差模信号(传输线中相位相反、方向相反的有效信号)保持低损耗传输。该产品针对100MHz频段的共模噪声优化,是解决高频EMI问题的针对性器件,可帮助设备快速通过电磁兼容(EMC)认证。

二、关键电气参数解析

该产品的电气参数围绕“噪声抑制能力”与“可靠性”两大核心设计,关键参数及意义如下:

  1. 共模阻抗:800Ω@100MHz——CMC的核心性能指标,直接决定对100MHz频段共模噪声的抑制效果,高阻抗可有效衰减该频段的干扰信号,避免其影响电路正常工作;
  2. 额定电流:300mA——连续工作状态下的最大允许电流,保证长期稳定运行时绕组不发热过载,避免性能衰减;
  3. 额定电压/耐电压:100V/250V——100V为正常工作电压上限,250V为短时间耐受电压(如瞬态浪涌、尖峰脉冲),提升电路抗干扰与安全可靠性;
  4. 直流电阻(DCR):880mΩ——绕组的直流电阻值,低DCR可减少信号传输过程中的功率损耗,避免有效信号衰减,同时降低设备功耗;
  5. 绝缘电阻:10MΩ——绕组与绕组、绕组与外壳间的绝缘性能指标,保证电气隔离,防止短路风险,提升长期使用的安全性。

三、物理封装与安装适配

  1. 封装规格:采用2012公制封装(对应英制0805封装),尺寸为2×1.2×1.2mm,属于超小型表面贴装封装,可大幅节省PCB空间,适配便携设备的高密度布局需求;
  2. 安装方式:水平式4引脚设计,适配标准PCB贴装工艺(回流焊、波峰焊均可),便于与电源线、信号线等双线电路集成(共模噪声通常存在于双线传输中);
  3. 应用适配:小体积与水平安装特性,适合智能手机、可穿戴设备、小型电源模块等对空间要求严格的场景。

四、环境适应性表现

该产品具备宽温工作能力,工作温度范围为-55℃~+125℃,可适应以下复杂环境:

  • 工业控制场景(如低温户外传感器、高温车间PLC模块);
  • 消费电子的极端温度环境(如夏季户外使用的智能手机、冬季户外的可穿戴设备);
  • 汽车电子(若需车规认证可进一步验证,但基础宽温参数已覆盖多数 harsh 环境)。 同时,绝缘电阻与耐电压参数在宽温范围内保持稳定,进一步提升可靠性。

五、典型应用场景

结合参数特性,SRF2012A-801Y的典型应用包括:

  1. 小型直流电源:抑制电源输入/输出线上的共模噪声,帮助设备通过EMC认证(如5V/12V小型开关电源);
  2. 消费电子:智能手机、平板、TWS耳机等设备的高速信号线(USB、HDMI)或电源线的EMI控制;
  3. 工业控制模块:PLC、传感器节点、物联网网关等设备的信号传输抗干扰;
  4. 通信接口:Wi-Fi、蓝牙、LoRa等无线模块的共模噪声抑制,提升信号稳定性。

六、产品优势总结

  1. 小型化优势:2012封装体积仅2×1.2×1.2mm,适配高密度PCB设计,满足便携设备的空间需求;
  2. 高频抑制针对性:100MHz下800Ω高共模阻抗,精准抑制高频共模噪声,解决该频段的EMI痛点;
  3. 宽温可靠性:-55℃~+125℃工作范围,适应多种复杂环境,减少环境因素导致的性能衰减;
  4. 低损耗传输:880mΩ低DCR,减少有效信号与功率损耗,提升设备能效;
  5. 品牌保障:BOURNS作为全球知名被动元件厂商,产品一致性与质量可靠性有长期验证,降低选型风险。

综上,SRF2012A-801Y是一款平衡“小体积、高频EMI抑制、宽温适应”的实用型共模扼流器,可有效解决高密度电子设备中的共模噪声问题,是电子工程师进行EMI设计的理想选择。

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