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ARG05BTC49R9是Viking(光颉)电子推出的精密贴片薄膜电阻,针对对阻值精度、温度稳定性要求苛刻的电子系统设计,采用0805标准贴片封装,核心围绕“高精密、宽温稳、小体积”三大特点,适配工业、医疗、通信等多领域的小型化、高可靠性应用场景。
标称阻值为49.9Ω,精度等级达**±0.1%**(千分之一精度),属于精密电阻范畴。该精度可满足模拟电路中“信号分压、基准电压校准”等对阻值一致性要求严格的需求,避免因阻值偏差导致系统测量误差或功能失效(例如医疗设备的血压测量电路,精度偏差直接影响诊断结果)。
额定功率为125mW(0.125瓦),最大工作电压为150V。需注意:实际使用需同时满足“电压≤150V”和“功率≤125mW”两个限制(如150V工作时功率≈451mW,远超额定值,需结合电路功耗调整),确保电阻长期稳定。
温度系数为**±25ppm/℃,即每℃阻值变化±0.0025%(如25℃→125℃,阻值变化≈±0.25%)。结合-55℃~+155℃**宽温范围,可稳定适配工业现场极端温差(如户外传感器、车载电子的高低温环境)。
采用0805封装(英制0.08″×0.05″,公制2.0mm×1.2mm),体积小巧,贴装密度高,可缩小电路模块尺寸,适配消费电子、通信设备等空间受限场景。
相比碳膜(精度低、温漂大)和普通金属膜,薄膜电阻通过真空镀膜形成电阻层,具有低噪声、高稳定性、高频特性好特点,尤其适合射频电路、精密模拟信号处理(如高端音频设备的前置放大电路)。
符合RoHS无铅环保标准,焊接兼容性强(适配回流焊、波峰焊),通过抗振、抗湿测试,可在复杂环境长期工作(如工业生产线振动、户外设备潮湿)。
Viking(光颉)专注电阻研发20余年,ARG05BTC49R9通过ISO9001、IATF16949认证,每批次经阻值精度分选、温度特性测试,确保出厂一致性,可替代同类进口精密电阻。
ARG05BTC49R9凭借高精密、宽温稳的特性,成为多领域小型化电子系统的可靠电阻选型,可有效提升电路性能稳定性。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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