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HZ1005K102TFB01是国内电磁干扰(EMI)抑制领域龙头企业顺络电子(Sunlord)推出的0402封装高频片式磁珠,针对100MHz频段的电磁噪声抑制设计,兼具小型化、低损耗与可靠滤波性能,广泛适配便携式电子、IoT模块等高密度PCB场景。
作为顺络经典磁珠系列的一员,HZ1005K102TFB01聚焦100MHz频段的共模/差模干扰衰减,属于单通道片式磁珠,核心价值在于:在极小封装内实现对射频干扰的高效抑制,同时控制直流损耗与发热,满足现代电子设备“小型化+低功耗+抗干扰”的三重需求。
磁珠的性能核心围绕“频率-阻抗特性”“直流损耗”“电流承载能力”三大维度,HZ1005K102TFB01的参数针对性强:
阻抗为1kΩ±25%@100MHz:
直流电阻为1.25Ω:
DCR直接影响线路直流压降与功耗,在250mA额定电流下,磁珠直流功耗仅为:
[ P = I^2 \times R = (0.25A)^2 \times 1.25Ω = 0.078W ]
发热可控,不额外消耗便携式设备电量,也避免过热导致的阻抗漂移。
额定电流为250mA(Irms):
这是持续工作的最大电流上限,超流会导致铁氧体磁饱和或过热,阻抗下降甚至损坏。设计需预留10%-20%电流余量,避免长期过载。
仅支持1通道滤波,适合单路信号(射频天线、传感器输出)或单路电源(5V/3.3V支路)独立干扰抑制,不占用多通道额外空间。
HZ1005K102TFB01采用0402封装(公制1005,尺寸1.0mm×0.5mm×0.5mm典型值):
HZ1005K102TFB01性能匹配以下场景:
选型匹配:
若干扰频段偏离100MHz(如10MHz/1GHz),选顺络同系列HZ1005KxxxTFB01(xxx为阻抗代码,如101对应100Ω@100MHz);超250mA电流需升级至更高额定电流型号(如HZ1005K102TFC01,500mA)。
PCB设计要点:
环境注意:
避免>85℃高温或高湿环境长期工作,否则加速铁氧体老化,导致阻抗下降。
综上,HZ1005K102TFB01是高性价比0402封装高频磁珠,顺络品牌背书与成熟工艺确保可靠性,适合空间敏感、需抑制100MHz频段干扰的电子设备,是便携式产品与IoT模块的常用滤波方案。
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