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AR03BTCX7202N是Viking(光颉) 推出的高精密薄膜贴片电阻,属于该品牌针对精密电子领域打造的专业电阻系列。Viking作为专注被动元件研发生产的厂商,其薄膜电阻以工艺成熟、精度稳定著称,广泛应用于仪器仪表、通信、工业控制等对阻值精准度和环境适应性要求严苛的场景。本产品核心定位为小封装、宽温稳定、高精密的薄膜电阻,满足高密度PCB设计与极端工况下的可靠运行需求。
本产品的电气参数经过严格校准与测试,关键指标如下:
阻值标称72kΩ,精度等级为**±0.1%** —— 该精度远高于普通电阻(常规±1%/±5%),可有效减少电路信号偏差,适用于需要精准阻抗匹配、分压/分流计算的场景(如万用表校准电路、高精度电源反馈网络)。
温度系数为**±25ppm/℃** —— 表示温度每变化1℃,阻值变化量为72kΩ×25ppm=1.8mΩ,属于低TCR范畴。该特性使产品在宽温范围内阻值稳定性优异,避免因温度波动导致的电路性能下降。
支持**-55℃~+155℃** 工业级宽温,可适应户外设备、车载电子、航空航天等极端环境(如低温地区的通信基站、高温环境下的工业传感器)。
采用0603封装(英制尺寸:0.06英寸×0.03英寸,对应公制1608),体积小巧(约1.6mm×0.8mm),适合高密度PCB布局(如智能手机射频模块、小型化仪器仪表),有效节省电路板空间。
采用镍铬合金薄膜工艺(相比厚膜电阻),具有以下优势:
AR03BTCX7202N因高精密、宽温稳定的特性,广泛应用于以下领域:
为确保产品性能与可靠性,应用时需注意以下几点:
建议实际功耗不超过62.5mW(额定值的62.5%),避免因功率过载导致的阻值漂移或失效。
0603封装需遵循回流焊温度曲线(峰值温度≤245℃,时间≤10秒),避免热应力过大影响薄膜层稳定性。
存储于常温(15℃~35℃)、干燥(相对湿度≤60%)环境,避免受潮导致引脚氧化或阻值变化。
薄膜电阻对静电敏感,操作时需佩戴防静电手环,使用防静电工作台。
AR03BTCX7202N作为Viking的高精密薄膜贴片电阻,核心优势可概括为:高精度(±0.1%)、低TCR(±25ppm/℃)、宽温稳定(-55~155℃)、小封装(0603) ,是精密电子领域中替代普通电阻、提升电路性能的理想选择。其成熟的工艺与可靠的品牌背书,可满足各类严苛场景下的长期稳定运行需求。
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