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SC0402J2002F2ANRH是Sunway信维通信推出的0402封装厚膜固定电阻器,针对高密度PCB设计与宽温环境应用打造,属于中精度、小体积、高稳定性的通用型被动元件。其核心参数明确覆盖多数电子系统的分压、限流、信号调理需求,具体核心参数如下:
类别 参数值 说明 电阻类型 厚膜电阻 印刷工艺成型,稳定性优 标称阻值 20kΩ(代码2002) E24系列标准阻值 精度等级 ±5%(J档) 满足通用电路需求 额定功率 62.5mW 持续工作最大功率 最大工作电压 50V 瞬间/额定条件电压上限 温度系数 ±100ppm/℃ 宽温下阻值变化可控 工作温度范围 -55℃~+155℃ 覆盖工业/部分汽车场景标称阻值20kΩ属于电子电路中常见的分压、偏置阻值,±5%的精度(J档)无需额外校准即可满足消费电子、工业控制等多数场景需求——例如智能手机音频电路的信号偏置、PLC输入接口的限流,无需高精度级(如±1%)的成本投入,性价比突出。
额定功率62.5mW为持续工作的最大功率,实际应用需同时满足两个约束:
±100ppm/℃的温度系数意味着:在工作温区(-55℃~+155℃,温差180℃)内,阻值变化量为 $20kΩ \times 100e-6 \times 180 = ±360Ω$,仅占标称值的±1.8%——远低于±5%的精度要求,保证极端环境下(如工业高温车间、汽车引擎舱周边) 电路性能稳定。
-55℃+155℃的工作温度范围,超越普通消费级(0℃70℃)与工业级(-40℃~85℃)标准,可适配:
0402封装(英制代码,对应公制1005)尺寸仅为1.0mm×0.5mm×0.4mm,是目前小型化电子设备的主流封装之一,可大幅提升PCB的元件密度——例如智能手机主板的电源滤波电路、智能穿戴设备的信号调理模块,能在有限空间内集成更多功能。
采用厚膜印刷+烧结工艺,电阻膜层与陶瓷基底结合紧密,具备以下优势:
端电极采用Ni层+SnPb镀层(或无铅Sn镀层)的多层结构,兼容:
信维通信是国内被动元件领域的龙头企业,专注于厚膜电阻、射频元件的研发生产,产品通过ISO9001质量管理体系、IATF16949汽车行业认证,具备稳定的供应链与生产能力。
每批次产品需经过:
支持批量供货(月产能≥1000万只),可根据需求定制:
SC0402J2002F2ANRH凭借小体积、宽温稳定、中精度、高性价比的特点,成为多领域电子系统的理想电阻选择——尤其适合对PCB密度、环境适应性有要求的消费电子、工业控制与汽车电子场景,是信维通信厚膜电阻产品线中的经典通用型号。
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