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Sunlord(顺络电子)GZ1005D800CTF是一款针对高频电磁干扰(EMI)抑制设计的片式铁氧体磁珠,主打「小体积高密度、宽温环境适配、阻抗-电流平衡」三大核心特性,主要面向便携式电子设备、IoT终端、低功耗工业级产品等对空间紧凑性和环境适应性要求较高的应用场景。其设计目标是在有限PCB空间内,有效抑制100MHz频段(射频、数字电路噪声集中区)的干扰,同时满足低功耗设备的电流承载需求。
产品标称阻抗为80Ω@100MHz,误差范围±25%(实际阻抗60Ω~100Ω)。磁珠的阻抗随频率升高先增大后减小,80Ω在100MHz时处于有效抑制区间,可精准衰减射频干扰、数字电路高频纹波等常见噪声;±25%的公差符合工业级被动元件常规要求,适配批量生产的一致性需求。
直流电阻为160mΩ,属于同类0402封装磁珠的低损耗水平。DCR越低,磁珠在直流供电路径上的压降和发热越小,尤其适合电池供电的便携式设备(如智能手表、蓝牙耳机),可避免额外功耗损耗,延长电池续航。
额定电流为450mA,指工作温度范围内长期稳定工作的最大直流电流。该数值匹配多数低功耗IoT终端、便携式医疗设备(如血糖仪)的工作电流(100mA~300mA),余量充足,可避免电流过载导致的阻抗下降或过热失效。
工作温度范围为**-55℃~+125℃**,覆盖工业级环境高低温波动(如户外传感器、车载辅助设备低温启动),同时满足消费电子高温工作需求(如智能手机长时间运行发热)。该特性经顺络高低温循环测试验证,符合RoHS、REACH环保标准。
产品型号中「1005」为公制封装尺寸(1.0mm×0.5mm),对应英制0402封装,是目前被动元件最小常规封装之一。该封装可显著节省PCB空间,适配高密度设计的设备(如智能手机主板、智能手环微型PCB),满足「轻薄化」趋势。
顺络对该磁珠完成多项可靠性测试:
Sunlord GZ1005D800CTF磁珠通过小体积封装、宽温可靠性与平衡的阻抗-电流特性,成为便携式电子、IoT终端等低功耗场景的EMI抑制优选方案。其参数设计贴合实际应用,可靠性验证充分,可有效解决高频噪声干扰问题,同时适配高密度PCB布局与 harsh环境,是消费电子与工业级设备的实用型被动元件。
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