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AR05BTCW0120是Viking(光颉)品牌推出的0805封装薄膜贴片电阻,核心参数围绕“高精度、小体积、宽温稳定”设计,具体规格如下:
这些参数的组合精准定位了“精密小功率电路”的应用需求,平衡了精度与体积的矛盾。
0805封装是贴片电阻的主流小体积封装之一,相比0603等更小封装,125mW的功率承载能力更优;相比1206等大封装,体积小30%以上,适合高密度贴装(每平方厘米可贴装约200颗),适配PCB板小型化、集成化趋势。
AR05BTCW0120采用镍铬薄膜工艺,通过真空溅射在陶瓷基底上形成均匀薄膜,再经激光微调实现±0.1%的高精度。相比碳膜电阻,薄膜电阻的温度系数更低、稳定性更好;相比金属膜电阻,贴片薄膜的一致性更优,适合批量生产。
±0.1%的精度是核心亮点,结合±25ppm/℃的TCR,在-55℃~+155℃全温范围内,阻值最大漂移量仅为:12Ω×25ppm/℃×210℃=0.063Ω,漂移率约0.525%,远低于普通电阻。这一特性可避免温度变化导致的电路参数偏移,适合长期稳定的测量、控制场景。
125mW为降额设计后的标称值(实际承载能力更高),确保长期使用无功率过载老化;150V电压上限可满足大部分信号电路需求(如传感器10V以内信号、3.3V/5V电源滤波),无需额外并联高压电阻。
Viking采用全自动化激光微调+在线检测,每颗电阻阻值偏差控制在±0.05%以内(优于标称±0.1%),批量一致性达99.9%以上;通过高低温循环测试(1000次循环)、湿度测试(85℃/85%RH,1000小时)、ESD测试(接触±8kV、空气±15kV),符合IEC 61000-4-2标准,MTBF达10^6小时以上。
AR05BTCW0120的参数特性使其广泛适配多领域精密电路:
AR05BTCW0120是一款高精度、小体积、宽温稳定的薄膜贴片电阻,以±0.1%精度、±25ppm/℃TCR、0805封装为核心特性,适配多领域精密电路需求。Viking品牌的工艺管控确保了批量一致性与长期可靠性,是替代普通电阻、提升电路精度的理想选择。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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