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RK73H1JTTD1003F是日本KOA公司推出的一款常规功率厚膜贴片电阻,针对高密度PCB设计优化,具备稳定的电气性能与宽温适应性,广泛适用于消费电子、工业控制等多领域电路。
该型号为KOA厚膜电阻系列的典型产品,型号编码隐含核心参数:
产品定位为中精度、常规功率贴片电阻,平衡了成本与性能,适合多数非超高精度需求的电路设计,无需额外校准即可适配常规应用。
标称阻值100kΩ,精度±1%,实际阻值范围为99kΩ~101kΩ。此精度可满足信号调理、分压、限流等多数电路的阻值控制需求,避免因阻值偏差导致的电路性能波动。
温度系数为±100ppm/℃,表示环境温度每变化1℃,阻值变化量为标称值的±100×10⁻⁶。以100kΩ为例,温度变化±100℃时,阻值变化仅±1kΩ,此稳定性可覆盖多数宽温应用场景。
采用0603封装(英制:0.06″×0.03″;公制1608:1.6mm×0.8mm),体积小巧,适合高密度PCB布局,可有效节省电路板空间,适配手机、智能穿戴等小型化电子设备需求。
基于厚膜电阻工艺制造:在高纯度氧化铝陶瓷基底上印刷电阻浆料并高温烧结,形成致密稳定的电阻膜层;端电极采用“银浆+镍+锡镀层”三层结构,兼顾焊接可靠性与抗氧化性。
端电极设计兼容回流焊、波峰焊等主流贴片工艺,焊接后拉脱力符合行业标准(≥10N),无铅设计符合RoHS 2.0环保要求。
支持**-55℃+155℃**的宽温工作,覆盖工业级温度范围(常规工业级为-40℃+125℃),且在极端温度下仍能保持电气性能稳定,适合户外设备、汽车电子(如引擎舱周边辅助电路)等场景。
厚膜电阻结构对湿度、灰尘等环境因素具有耐受性:长期暴露于湿度30%~85%的常规环境下,阻值变化率≤0.5%(KOA产品标准);1000小时高温老化(155℃)后,阻值漂移≤0.2%,保证电路长期可靠性。
该电阻的参数特性使其适用于以下领域:
KOA作为日本老牌电子元器件制造商,拥有数十年电阻生产经验,RK73H1JTTD1003F具备以下优势:
总结:RK73H1JTTD1003F是一款性价比突出的厚膜贴片电阻,以1%精度、100mW功率、宽温适应性为核心优势,适配多领域常规电路设计,是电子工程师平衡成本与性能的可靠选择。
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