WMSIC Electronic Components

FH CBM100505U050T

ModelCBM100505U050T
Package0402
BrandFH
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
FH CBM100505U050T
Type
FH
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
CBM100505U050T
Electronic Component
1
Package
0402
Electronic Component
Ferrite Bead
Electronic Component
0.022g
Electronic Component
1
Electronic Component
BM0265737888
Operating Temperature
55℃~+125℃
Current
2A
@Frequency
5Ω@100MHz
Resistor(DCR)
20mΩ
Electronic Component
Electronic Component
Electronic Component
10000

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

CBM100505U050T贴片磁珠产品概述

CBM100505U050T是风华高科(FH)推出的一款0402封装贴片铁氧体磁珠,专为高频噪声抑制与中等功率大电流场景设计,具备小体积、低损耗、宽温适用等核心优势,广泛应用于消费电子、通信、工业控制等领域。

一、产品基本信息

  • 品牌:风华高科(FH)
  • 产品类型:贴片铁氧体磁珠
  • 封装规格:0402(英制,对应公制1005,尺寸约1.0mm×0.5mm)
  • 阻抗公差:±25%
  • 环保认证:符合RoHS 2.0、REACH标准,无铅焊接兼容

二、核心性能参数及实用意义

磁珠的性能需结合阻抗-频率特性、直流电阻(DCR)、额定电流等参数综合评估,CBM100505U050T的关键参数如下:

1. 阻抗特性(5Ω@100MHz)

磁珠的阻抗随频率呈“低频低阻、高频高阻”特性,100MHz频段下5Ω的阻抗值是其核心设计点——该频段覆盖蓝牙、WiFi、射频通信等常用高频信号,可精准抑制此类频段的电磁干扰(EMI),同时避免对直流/低频电源信号的过度衰减。

2. 直流电阻(DCR:20mΩ)

20mΩ的低DCR是大电流应用的关键:直流电阻越小,磁珠导通直流电流时的功率损耗(P=I²×R)越低。以额定电流2A计算,损耗仅为80mW,可显著降低电路发热,提升系统长期可靠性。

3. 额定电流(2A)

额定电流指磁珠在工作温度范围内允许的最大直流连续电流,超过该值会导致磁珠过热、磁导率下降。2A的额定电流适配中等功率的DC-DC转换电路、电源滤波模块等场景,无需额外并联磁珠即可满足电流需求。

4. 工作温度范围(-55℃~+125℃)

宽温范围覆盖工业级(-40℃+85℃)与汽车级(-55℃+125℃)典型环境,可稳定工作于高温车间、户外设备或极端气候区域,无需额外散热设计。

三、设计特点与优势

CBM100505U050T针对高密度PCB与噪声抑制需求优化,具备以下实用优势:

1. 小封装适配高密度布局

0402封装体积仅为1.0mm×0.5mm,比0603封装缩小约60%,可有效节省PCB空间,适合智能手机、智能穿戴、小型通信模块等对尺寸敏感的产品。

2. 低损耗平衡效率与抗干扰

低DCR(20mΩ)与合理的阻抗特性实现“噪声抑制”与“功率损耗”的平衡:既不会因阻抗过高导致电源效率下降,也能精准抑制100MHz左右的高频干扰,避免电路误触发或信号失真。

3. 宽温稳定性强

在-55℃~+125℃范围内,磁珠的阻抗与DCR变化率控制在±10%以内(风华磁珠常规特性),确保极端环境下性能一致,减少系统调试难度。

4. 高可靠性焊接与抗老化

采用风华成熟的贴片磁珠工艺,焊盘设计适配回流焊/波峰焊,焊接良率≥99.5%;铁氧体材料经过1000小时老化测试,可长期稳定工作于工业与消费电子场景。

四、典型应用场景

结合参数特性,CBM100505U050T主要应用于以下场景:

1. 通信设备射频滤波

  • 蓝牙/WiFi模块的电源端滤波(抑制100MHz左右的射频噪声);
  • 4G/5G基站小型化滤波电路(适配小封装与大电流需求)。

2. 电源管理模块

  • DC-DC转换器输出滤波(2A额定电流适配1-2A功率转换电路);
  • 电池充电电路噪声抑制(避免充电时电磁干扰影响其他模块)。

3. 工业控制与汽车电子

  • 工业PLC数字电路滤波(宽温适配车间高温环境);
  • 汽车仪表盘/传感器电源滤波(-55℃~+125℃符合车载环境标准)。

4. 消费电子终端

  • 智能手机主板射频电路滤波;
  • 智能手表电源管理模块(小封装适配穿戴设备紧凑空间)。

五、应用注意事项

为确保性能与可靠性,使用时需注意以下几点:

1. 焊接参数控制

  • 回流焊峰值温度≤260℃,时间≤10秒;
  • 波峰焊温度≤250℃,时间≤5秒,避免高温损坏铁氧体材料。

2. PCB布局优化

  • 磁珠应靠近噪声源(如DC-DC芯片输出端)或敏感负载(如射频模块电源端),缩短噪声路径;
  • 避免与敏感信号线平行布线,减少电磁耦合。

3. 电流降额设计

  • 若工作环境温度接近125℃,建议将额定电流降额至1.5A以内(风华磁珠温度-电流降额曲线要求);
  • 脉冲电流峰值需控制在2A以内(磁珠对脉冲电流的耐受能力参考风华 datasheet)。

4. 阻抗匹配验证

  • 若电路核心噪声频率偏离100MHz,需通过阻抗分析仪测试实际阻抗值,确保满足噪声抑制需求。

CBM100505U050T凭借“小体积+低损耗+宽温+大电流”的平衡特性,成为高密度电路噪声抑制的实用选择,可满足多领域的EMC设计需求。

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