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RALEC旺诠推出的RTT021302FTH是一款专为高密度、小功率电子电路设计的0402封装厚膜贴片电阻。该型号属于旺诠常规厚膜电阻系列,聚焦「1%精度+宽温范围」的核心需求,适配消费电子、工业控制、汽车电子等多领域的小型化电路应用。其核心规格明确:固定阻值13kΩ,额定功率62.5mW,工作温度覆盖-55℃至+155℃,符合主流电子设备的环境适应性要求。
固定阻值13kΩ,精度等级±1%——该精度在厚膜电阻中属于较高水平,可满足多数电路的阻抗匹配、分压/限流等功能需求(如模拟电路偏置网络、数字电路上拉/下拉),避免因阻值误差导致的信号偏移。
额定功率62.5mW,额定工作电压50V。实际使用需同时满足两个限制:
温度系数±100ppm/℃——表示温度每变化1℃,阻值变化±1.3Ω(13kΩ×100×10⁻⁶)。结合-55℃~+155℃的温差(210℃),总阻值变化约±273Ω(相对于13kΩ为±2.1%),叠加初始±1%精度,整体误差范围≤±3.1%,覆盖多数场景的温度漂移需求。
0402英制封装(1.0mm×0.5mm),是当前贴片电阻中体积最小的规格之一,适合高密度PCB布局(如可穿戴设备、小型传感器模块),有效降低电路空间占用。
采用丝网印刷厚膜电阻浆料+高温烧结工艺,电阻膜层附着力强、稳定性高,长期使用阻值漂移小,适合批量生产的一致性要求。
0402封装的超小尺寸,可在单位PCB面积内集成更多元件,提升电路集成度,适配智能手机、智能手表等小型化终端。
-55℃~+155℃的工作温度范围,覆盖汽车电子(发动机舱环境)、工业控制(户外设备)等恶劣环境的温度需求,无需额外增加温度补偿电路。
厚膜工艺相比薄膜电阻成本更低,同时满足1%精度与宽温需求,是多数中端电子设备的性价比之选。
RALEC旺诠是全球知名被动元件制造商,专注贴片电阻研发生产超30年。RTT021302FTH系列符合RoHS 2.0、REACH等环保标准,通过高温存储、温度循环、湿度测试等可靠性验证,批量一致性好,可满足电子设备长期稳定运行需求。
该产品以「小体积、高精度、宽温适配」为核心优势,是电子设备小型化设计的实用选择。
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