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Viking(光颉)AR03BTB1003是一款针对高精度、宽温稳定、小体积需求设计的薄膜贴片电阻,采用0603封装,核心参数覆盖精密电子设备的核心要求,广泛应用于医疗、工业、通信等高端领域。
该电阻聚焦“小体积下的高精度稳定性”,针对传统厚膜电阻精度低、温度漂移大的痛点,采用薄膜溅射工艺替代厚膜丝网印刷,同时优化封装结构,在1.6mm×0.8mm的0603封装内实现了±0.1%精度与±10ppm/℃温度系数的平衡,满足高密度PCB布局与严苛环境下的长期稳定工作需求。
阻值为100kΩ(对应阻值代码“1003”),精度达±0.1%——远高于普通贴片电阻(±1%~±5%),可有效减少电路分压、限流环节的误差。例如在医疗监护仪的血氧信号调理电路中,该精度可避免因电阻偏差导致的血氧浓度测量误差(误差控制在0.5%以内,符合临床要求)。
额定功率62.5mW,额定工作电压50V,属于0603封装的典型功率范围,适配低电流信号电路(最大工作电流≈22.4μA,由P=I²R计算),避免了功率冗余带来的体积浪费,同时满足电路安全工作的电压上限(实际工作电压需低于50V,防止击穿)。
温度系数(TCR)为±10ppm/℃,工作温度范围-55℃~+155℃:
采用英制0603封装(公制1608),尺寸仅1.6mm×0.8mm×0.45mm,重量约0.005g,可在1cm²的PCB上布局超过100个该电阻,满足智能手机、可穿戴设备、小型医疗仪器的小型化需求。
采用镍铬合金薄膜真空溅射工艺(替代厚膜的丝网印刷),通过光刻、激光微调实现阻值精准控制,相比厚膜电阻:
符合RoHS无铅标准,兼容回流焊(温度曲线符合J-STD-020)、波峰焊工艺,焊接后无虚焊、脱落问题,适配自动化贴片生产线,降低生产工艺复杂度。
示波器、万用表、频谱分析仪的电压基准电路、信号分压网络,利用其高精度与低TCR保证测量精度(如万用表的直流电压档,误差可控制在0.05%以内)。
监护仪、血糖仪、心电图机的生命体征信号调理模块,低噪声特性避免干扰信号影响诊断,宽温范围适应医院不同环境(如手术室-20℃~+40℃)。
PLC(可编程逻辑控制器)的模拟量输入输出电路,宽温特性满足工厂车间(-10℃~+50℃)的长期稳定,高精度保证传感器信号的准确采集。
汽车传感器(如胎压传感器、氧传感器)的信号处理电路,155℃的高温极限适配发动机舱高温环境,±0.1%精度保证传感器数据的准确性。
Viking光颉AR03BTB1003薄膜贴片电阻通过薄膜工艺与小体积封装的结合,实现了“高精度、宽温稳定、环保兼容”的核心优势,覆盖了从医疗到汽车的多领域高端应用,是精密电子设备中替代普通厚膜电阻的理想选择。
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