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方成(FC)推出的FC-SCTEE8.5-1-100T是一款专为低压电力系统、小型电子设备设计的插件式高精度电流互感器,核心功能是将大电流(最高25A)按1:100比例转换为小电流输出,让后端电路(如ADC、PLC、计量芯片)可安全、准确地监测电流。
典型应用场景包括:
FC-SCTEE8.5-1-100T的参数设计兼顾安全、精度与实用性,核心参数及实际意义如下:
初级输入电流(I₁)与次级输出电流(I₂)比例为1:100,即I₂ = I₁/100。例如:输入25A时,次级输出0.25A;输入5A时,输出0.05A。无需额外放大电路即可适配低压检测电路,简化系统设计。
连续工作允许的最大输入电流,短期(<10秒)过载可承受30A左右,满足多数小型设备的电流范围需求。
初级与次级绕组的电气隔离能力,可阻断高低压电路干扰,保障后端低压控制电路(如单片机、ADC)安全——即使初级侧有瞬时高压波动,也不会窜入次级损坏敏感元件。
影响信号响应速度与抗干扰:5mH电感可减少高频噪声干扰,保证动态电流(如脉冲电流)传输稳定,适合实时监测场景。
相比同类插件式互感器,FC-SCTEE8.5-1-100T具有以下核心优势:
1.5kV隔离电压符合GB/T 17626电磁兼容标准,绕组采用绝缘漆包裹+骨架隔离设计,可直接应用于需要安规认证的家电、工业设备。
低内阻设计使功率损耗极小:输入25A时,初级损耗仅≈1.56W,连续工作温度上升≤10℃,MTBF(平均无故障时间)≥50000小时。
次级5mH电感配合优化绕组结构,额定电流范围内失真率≤0.5%,对50/60Hz工频干扰抑制达30dB以上,适合复杂电磁环境。
插件式(DIP)封装无需特殊工具,适配传统波峰焊、手工焊生产线;引脚间距符合2.54mm标准,无需修改PCB即可替换同类产品。
为保证性能与安全,使用时需注意以下要点:
FC-SCTEE8.5-1-100T是一款高性价比、高可靠性的插件式电流互感器,针对小型设备电流检测场景优化,兼顾安全、精度与安装便捷性。无论是家电、工业控制还是计量领域,均能满足低成本、稳定可靠的电流传感需求,是替代同类进口产品的理想选择。
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