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AR03BTCX4703是Viking(光颉) 品牌推出的一款高精度薄膜贴片电阻,型号命名清晰对应核心属性:
该产品采用行业通用的0603封装,尺寸紧凑(约1.6mm×0.8mm×0.45mm),适配多数小型化电子设备的自动化贴装需求。
AR03BTCX4703的性能参数针对性满足精密电路设计需求,关键指标如下:
标称阻值470kΩ,精度达**±0.1%**,属于行业高精度电阻范畴——这意味着在常温(25℃)下,实际阻值偏差不超过470Ω,可直接用于对阻值一致性要求严苛的校准回路、采样电路。
最大额定功率为100mW(常温下),若环境温度升高需参考降额曲线:例如125℃时功率需降至约50mW,155℃时则需降至30mW以内,确保长期可靠性。
温度系数为**±25ppm/℃**,即温度每变化1℃,阻值变化约为470kΩ×25×10⁻⁶=11.75Ω——温漂极小,可有效抑制宽温环境下的阻值漂移,避免电路性能波动。
覆盖**-55℃~+155℃**,远超普通民用电阻的温度上限(通常125℃),可适应工业控制、车载电子等恶劣环境(如户外传感器、汽车发动机舱内电路)。
体积小、重量轻,支持高速SMT贴装(速度可达10万点/小时以上),适合高密度PCB布局(如智能手机主板、可穿戴设备模块);同时0603封装的散热面积适中,可满足100mW功率下的热管理需求。
采用真空溅射薄膜技术制备电阻层,相比厚膜电阻具有三大优势:
AR03BTCX4703因高精度、宽温、小体积的特点,广泛应用于以下领域:
示波器、信号发生器、高精度万用表的校准电路——需稳定的基准电阻保证测量精度(如电压基准、增益校准回路)。
传感器信号调理电路(如压力、温度、流量传感器的放大/滤波回路)——需抗温漂电阻避免信号失真,适配-40℃~+85℃的工业环境。
便携式血糖仪、小型监护仪的反馈电路——需宽温适应人体接触(37℃)或极端存储环境(-20℃),同时高精度保证检测结果准确。
基站射频前端的匹配网络、滤波器电路——小体积适配高频PCB布局,低噪声避免信号干扰,宽温适应户外基站的温度波动。
Viking(光颉)是全球被动元器件领域的专业厂商,其薄膜电阻产品通过以下认证,可靠性得到行业认可:
AR03BTCX4703可直接替换同规格的进口品牌电阻(如Yageo、Murata),在成本与性能之间实现平衡,适合大规模工业化生产。
综上,AR03BTCX4703是一款专为精密、宽温、小型化电路设计的高性能薄膜贴片电阻,可满足工业、医疗、通信等多领域的严苛需求。
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