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SC0402F1004F2ANRH是信维通信(Sunway)推出的通用型厚膜贴片电阻,主打小体积、高精度与稳定性能,适配高密度电路设计需求。核心参数明确:标称阻值1MΩ(10⁶Ω)、精度±1%、额定功率62.5mW、额定工作电压50V、温度系数±100ppm/℃,工作温度覆盖-55℃至+155℃,属于工业级温度范围的基础型贴片电阻,可满足多数常规电子设备的电路需求。
该电阻采用0402英寸封装(公制尺寸1.0mm×0.5mm×0.4mm,长×宽×高),是贴片电阻中体积最小的规格之一,适配高密度PCB布局(如智能手机主板、物联网模块等)。封装为表面贴装式,兼容回流焊、波峰焊等常规SMT工艺,焊接可靠性符合IPC-A-610标准;无引脚设计减少了寄生电感/电容,可提升电路高频性能,适合信号传输类电路。
标称阻值1MΩ,精度±1%,即实际阻值范围为990kΩ~1010kΩ,满足一般模拟电路、信号调理电路对阻值偏差的要求(无需超高精度如0.1%的场景)。型号中的“1004”为阻值代码(100×10⁴Ω=1MΩ),便于生产选型与库存管理。
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条件(验证:50V²/1MΩ=2.5mW<62.5mW,说明电压限制更严格);短时间过载能力为1.25倍额定功率(约78.125mW),可应对瞬时功率波动(如电路启动瞬间的电流峰值)。
温度系数±100ppm/℃,以25℃为基准温度,环境温度每变化1℃,阻值变化±100×10⁻⁶Ω/Ω。例如,155℃时阻值变化量为1MΩ×(155-25)×100ppm=13Ω,阻值范围999987Ω~1000013Ω,适合温度变化范围不大的一般环境(如室内设备、车载辅助电路)。
-55℃~+155℃,覆盖工业级设备的典型环境温度(如户外传感器、车载仪表盘),低温下无阻值漂移或封装开裂风险,高温下性能稳定,可满足多数应用场景的温度需求。
额定功率下负载寿命1000小时,阻值变化≤1%;温度循环(-55℃~+155℃,500次循环)后,阻值变化≤0.5%,符合厚膜电阻的通用可靠性标准,可降低设备长期运行的故障风险。
SC0402F1004F2ANRH因体积小、精度适中,广泛应用于以下场景:
信维通信(Sunway)是国内领先的电子元器件制造商,该电阻符合RoHS 2.0、REACH等环保标准,无铅无卤;生产过程通过ISO9001质量管理体系与IATF16949汽车电子体系认证,每批次产品经过阻值、精度、温度系数全检,一致性达标率≥99.9%,可提供完整的质量检测报告与售后技术支持。
该产品平衡了体积、性能与成本,是高密度电路设计中基础电阻的优选方案。
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