WMSIC Electronic Components

TAI-TECH BPH853025R5-101T BPH853025R5

ModelBPH853025R5-101T
PackageSMD,9x3mm
BrandTAI-TECH
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

18 specifications

Core information

Product name
TAI-TECH BPH853025R5-101T
Type
TAI-TECH
Minimum package
500

Technical parameters

Electronic Component
TAI-TECH
Electronic Component
BPH853025R5-101T
Electronic Component
1
Package
SMD,9x3mm
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.5g
Electronic Component
1
Channel Count
1
Electronic Component
BM0265843566
Operating Temperature
40℃~+125℃
Current
30A
@Frequency
100Ω@100MHz
Resistor(DCR)
1mΩ
Electronic Component
500

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

BPH853025R5-101T 功率型SMD磁珠产品概述

BPH853025R5-101T是台庆(TAI-TECH)推出的一款高电流、低损耗SMD功率磁珠,针对大电流回路的电磁干扰(EMI)抑制需求设计,兼具宽温稳定性与贴片封装的便捷性,广泛适配汽车电子、工业控制、通信设备等领域的高功率应用场景。

一、产品核心定位与应用场景

该磁珠属于功率型磁珠范畴,区别于普通小电流磁珠,核心优势在于30A大电流承载能力与1mΩ超低直流电阻,可直接串联在大电流电源线路、信号线中,在抑制高频干扰的同时,不额外增加系统功率损耗。

典型应用场景包括:

  • 汽车电子:车载DC/DC转换器输出端、BMS电池管理系统的电流采样线路、车载通信模块的电源滤波;
  • 工业控制:变频器、伺服驱动器的电源回路、PLC的模拟量输入输出线;
  • 通信设备:基站电源模块、服务器电源的主输出线路、路由器的高频信号线;
  • 新能源:充电桩的充电回路、光伏逆变器的直流侧滤波。

二、关键参数深度解析

1. 阻抗特性:100Ω@100MHz,±25%误差

磁珠的核心功能是高频阻抗抑制,其阻抗随频率变化呈“先升后降”趋势(磁导率随频率变化导致)。该产品在100MHz频段的阻抗为100Ω,误差±25%,恰好覆盖开关电源(如DC/DC、AC/DC)常见的噪声频段(50~200MHz),能有效吸收该区间的电磁干扰,避免干扰耦合到敏感电路。

2. 直流电阻(DCR):仅1mΩ

低DCR是功率磁珠的关键指标——电流通过时的功率损耗为( P=I^2R ),当电流为30A时,损耗仅为( 30^2 \times 0.001 = 0.9W ),远低于普通磁珠(如DCR=10mΩ时损耗为9W),可显著减少器件发热,提升系统效率,同时避免因过热影响周边电子元件寿命。

3. 额定电流:30A

额定电流是指磁珠在额定工作温度下,长期稳定工作的最大电流。30A的额定值可满足大多数中大功率设备的需求(如车载12V/30A电源线路、工业变频器的30A输出端),若应用中存在短时间脉冲电流(如启动瞬间),可参考台庆提供的脉冲电流曲线,确保安全裕量。

4. 工作温度范围:-40℃~+125℃

宽温设计适配极端环境:低温-40℃可满足北方户外通信基站、汽车冬季启动的需求;高温+125℃可适应汽车发动机舱(温度可达105℃以上)、工业变频器内部的高温环境,无需额外散热设计,提升系统可靠性。

5. 封装尺寸:SMD 9x3mm

贴片式封装(尺寸9mm×3mm)兼容常规SMT贴装工艺,无需特殊设备;尺寸紧凑,可节省PCB布局空间,尤其适合高密度集成的车载电子、服务器主板等场景。

三、产品核心优势

  1. 大电流与低损耗平衡:30A额定电流+1mΩ低DCR,在抑制干扰的同时,不牺牲系统效率,是高功率设备EMI滤波的最优选择;
  2. 宽温性能稳定:-40~125℃范围内,阻抗特性与电气参数无明显漂移,符合汽车级、工业级可靠性要求;
  3. 针对性干扰抑制:100Ω@100MHz阻抗精准匹配开关电源噪声频段,抑制效果优于宽频磁珠;
  4. 贴装便捷性:SMD封装适配自动化生产,降低人工成本,提升生产效率;
  5. 品牌可靠性:台庆(TAI-TECH)作为专业磁珠厂商,产品经过严苛的环境测试(如温度循环、湿度老化),质量稳定。

四、选型与使用注意事项

  1. 电流裕量:应用中最大工作电流需低于30A(建议预留20%~30%裕量,避免过载);
  2. 频率匹配:若主要干扰频段偏离100MHz(如<50MHz或>200MHz),需参考台庆提供的阻抗-频率曲线,确认抑制效果;
  3. 温度环境:避免在超出-40~125℃的环境中使用,否则可能导致阻抗下降、寿命缩短;
  4. 焊盘设计:PCB焊盘需匹配9x3mm封装尺寸(具体参考台庆 datasheet),确保贴装后焊接牢固,避免虚焊;
  5. 并联/串联:若需更高阻抗或更大电流,可采用并联(增大电流)或串联(提高阻抗)方式,但需注意PCB布局对阻抗的影响。

五、总结

BPH853025R5-101T功率型SMD磁珠,凭借30A大电流、1mΩ低损耗、宽温稳定三大核心优势,成为高功率设备EMI抑制的理想解决方案。其贴片封装适配自动化生产,精准的100MHz阻抗特性覆盖主流干扰频段,可广泛应用于汽车电子、工业控制、通信等领域,为系统提供可靠的电磁兼容保障。

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