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CBG100505U301T是风华高科(FH品牌) 推出的单通道片式磁珠,型号命名清晰对应核心特性:
该产品定位为通用型EMI/RFI滤波元件,专为低电流、高密度电路设计,可覆盖消费电子、通信、工业控制等多领域的噪声抑制需求。
磁珠的性能核心在于「直流损耗小、交流干扰抑制强」,该产品关键参数如下:
磁珠阻抗随频率呈「低频低阻、高频高阻」特性,100MHz是射频干扰(如WiFi、蓝牙杂散)的典型频段。300Ω的阻抗可有效衰减该频段内的噪声信号,同时避免对低频有用信号(如音频、直流电源)的干扰。±25%的误差范围符合通用型元件的量产标准,可满足多数常规应用。
低DCR是该产品的核心优势之一:800mΩ的直流电阻意味着在直流信号传输路径中,压降和功耗极小(如100mA电流下,压降仅0.08V),适合对电源效率要求高的便携式设备(如智能手机、无线耳机),避免因磁珠损耗影响电池续航。
连续工作额定电流为100mA,是磁珠允许的最大直流电流(无明显性能衰减)。应用时需确保电路工作电流不超过该值,否则可能导致磁珠过热、阻抗漂移甚至失效——这一参数适配多数低功耗电路(如传感器、音频模块),但需注意大功率场景需选择更高额定电流的型号。
该磁珠针对低电流、高频干扰抑制场景优化,主要应用包括:
0402封装尺寸仅1.0mm×0.5mm×0.5mm,可节省PCB布局空间,适配高密度设计(如智能手机主板、小型物联网模块),是便携设备的理想选择。
采用风华成熟的片式元件工艺,结构稳定,抗机械应力能力较强,批量贴装不良率低,适合量产应用。
相比同类0402封装磁珠,CBG100505U301T的核心优势在于:
该产品是低电流、高频干扰抑制场景的高性价比选择,可满足多数消费电子、通信设备的EMI滤波需求。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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