WMSIC Electronic Components

TAI-TECH HCB2012KF-301T40 HCB2012KF

ModelHCB2012KF-301T40
Package0805
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

19 specifications

Core information

Product name
TAI-TECH HCB2012KF-301T40
Type
TAI-TECH
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TAI-TECH
Electronic Component
HCB2012KF-301T40
Electronic Component
1
Package
0805
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.038g
Electronic Component
1
Channel Count
1
Electronic Component
BM0265805792
Current
4A
@Frequency
300Ω@100MHz
Resistor(DCR)
40mΩ
Electronic Component
Electronic Component
Electronic Component
4000

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

HCB2012KF-301T40 磁珠产品概述

HCB2012KF-301T40是台庆电子(TAI-TECH)推出的一款高频干扰抑制磁珠,专为电源滤波、射频电路噪声抑制及高速数字电路电磁兼容(EMC)设计,具备低直流电阻、大电流承载能力与精准频段阻抗特性,适配高密度PCB布局需求。

一、产品基本信息

  1. 品牌与型号定义:由台庆电子(TAI-TECH)生产,型号HCB2012KF-301T40的标识含义清晰:
    • HCB:台庆磁珠产品系列专属代码;
    • 2012:公制封装尺寸(对应英制0805封装,尺寸约2.0mm×1.2mm);
    • KF:针对大电流场景优化的系列后缀;
    • 301:阻抗规格(300Ω@100MHz,误差±25%);
    • T40:直流电阻(40mΩ)与额定电流(4A)的组合标识。
  2. 核心属性:属于铁氧体磁珠,通过铁氧体材料的高频磁损耗特性,实现对特定频段电磁干扰(EMI)的衰减,不影响直流/低频信号的正常传输。

二、核心性能参数详解

1. 频段精准阻抗特性

该磁珠核心阻抗为300Ω@100MHz,误差范围±25%,针对100MHz附近频段的电磁干扰具有显著抑制效果。100MHz是数字电路时钟噪声、射频电路杂散信号的常见频段,此阻抗值可有效衰减该频段内的传导/辐射干扰,同时对低频信号(如直流电源、低频控制信号)的传输影响极小。

2. 低直流电阻(DCR)

直流电阻仅40mΩ,远低于同电流等级磁珠的平均水平。低DCR可大幅减少磁珠在大电流传输时的功率损耗(P=I²R),避免因发热导致的性能下降或PCB局部过热,提升电路效率与可靠性。

3. 大电流承载能力

额定电流为4A,可稳定承载4A直流电流而不出现磁饱和或性能衰减。此参数适配大多数电源回路(如DC-DC转换器输出、主板CPU/VCORE电源)的电流需求,无需并联多颗磁珠即可满足滤波要求,简化电路设计。

4. 单通道设计

采用1通道结构,适配单路信号/电源的独立滤波需求,可根据电路布局灵活串联于目标回路中,避免多通道磁珠的串扰问题。

三、典型应用场景

1. 电源滤波回路

  • 应用场景:DC-DC转换器输出端、主板电源分配回路、工业设备电源模块;
  • 适配原因:4A额定电流覆盖多数电源回路的工作电流,40mΩ低损耗减少电源效率损失,100MHz阻抗抑制开关噪声(开关电源开关频率多在100kHz~10MHz,但倍频噪声可达到100MHz)。

2. 射频电路干扰抑制

  • 应用场景:WiFi(2.4GHz/5GHz)、蓝牙(2.4GHz)、LTE等无线通信模块的电源/信号端;
  • 适配原因:100MHz阻抗针对无线模块的杂散干扰(如本地振荡器杂散、电源纹波杂散)进行衰减,避免干扰无线信号的发射与接收。

3. 高速数字电路EMC优化

  • 应用场景:CPU、FPGA、DDR内存等高速数字芯片的电源/时钟回路;
  • 适配原因:高速数字芯片的时钟频率多在100MHz以上,其谐波噪声可被该磁珠有效抑制,满足EMC认证要求(如CE、FCC)。

4. 工业控制电路

  • 应用场景:PLC模块、伺服驱动器、传感器信号回路;
  • 适配原因:0805小封装适合工业设备的紧凑布局,4A电流承载能力适配电机驱动等大电流回路,稳定性能满足工业环境的可靠性要求。

四、产品设计优势

  1. 低损耗与高电流平衡:40mΩ DCR与4A额定电流的组合,在同类0805封装磁珠中表现突出,兼顾效率与电流承载,无需额外散热设计;
  2. 精准频段针对性:针对100MHz频段优化阻抗,避免对其他频段信号的不必要衰减,提升电路兼容性;
  3. 小封装高密度适配:0805封装(2.0×1.2mm)适合高密度PCB设计,可与其他贴片元件紧凑布局,节省电路板空间;
  4. 成熟工艺可靠性:台庆电子的铁氧体磁珠工艺成熟,参数一致性好,长期工作稳定性高,可满足不同环境温度下的使用需求(常规工作温度-40℃~+85℃)。

五、封装与安装注意事项

  1. 封装尺寸:公制2012(英制0805),具体尺寸为长2.0±0.2mm、宽1.2±0.2mm、高0.8±0.2mm,适配标准0805焊盘设计;
  2. 焊接要求:
    • 回流焊:遵循IPC-J-STD-020标准,峰值温度240℃~260℃,时间不超过10秒;
    • 手工焊:烙铁温度不超过350℃,焊接时间不超过3秒,避免过热损坏磁珠内部铁氧体材料;
  3. 存储条件:未开封产品存储于温度-10℃~+40℃、湿度≤60%的环境中,开封后建议12个月内使用完毕,避免潮湿导致焊盘氧化。

HCB2012KF-301T40磁珠凭借精准的频段阻抗、低损耗大电流特性,成为电源滤波、射频与高速数字电路EMC优化的优选元件,适配多种工业与消费电子领域的设计需求。

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