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YI201209U121-5R0T是益嘉源(YJYCOIN)推出的通用型中功率片式磁珠,针对电源滤波、EMI抑制需求设计,兼顾高频干扰衰减、低直流损耗与宽温可靠性,适配工业控制、汽车电子、通信设备等多场景应用。其核心价值在于:以0805小封装实现5A额定电流与120Ω@100MHz阻抗的平衡,满足中等功率电路的抗干扰与效率双重需求。
阻抗@100MHz为120Ω±25%——100MHz是电磁干扰(EMI)的典型敏感频段(如开关电源高频噪声、射频通信杂散信号多集中于此),120Ω的阻抗可有效衰减该频段干扰,避免干扰信号耦合至敏感元件(如MCU、传感器);±25%的误差范围符合工业级磁珠常规精度,满足多数通用电路的滤波要求。
直流电阻(DCR)仅30mΩ——低DCR意味着直流功率损耗极小:以5A额定电流计算,压降仅为0.15V(5A×30mΩ),不会影响后端设备供电效率,尤其适合对电源效率敏感的场景(如车载充电器、DC-DC模块)。
额定电流5A——覆盖多数中功率电路的电流需求(如12V/5A车载电源、24V/5A工业控制器),无需并联多个磁珠即可满足滤波要求,节省PCB空间。
工作温度范围**-40℃~+125℃**——适配极端环境场景:汽车电子(车载环境温度波动大)、工业车间(高温作业)、户外通信设备(低温严寒)等,宽温下阻抗特性稳定,无性能衰减。
采用标准0805封装(英制0.08×0.05英寸,公制2.0×1.2mm),体积小巧,适合高密度PCB设计(如智能手机、小型工业模块);表面贴装工艺兼容性好,可适配回流焊、波峰焊等自动化生产流程,提高生产效率。
选用高性能锰锌铁氧体材料,兼具高频高阻抗与低DCR特性;产品经过严格可靠性测试:高低温循环(-40℃125℃循环1000次)、湿热老化(85℃/85%RH 1000h)、振动冲击(102000Hz,加速度2g),确保长期稳定工作。
益嘉源(YJYCOIN)是国内专注被动元器件研发生产的企业,其磁珠产品符合RoHS 2.0、REACH等环保法规,无铅无卤;产品一致性好,批量生产时参数偏差可控,可满足客户长期供货需求。
综上,YI201209U121-5R0T以“高频滤波+低损耗+宽温可靠”为核心优势,是中功率电路抗干扰设计的高性价比选择。
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