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SC2512J1000F1WNKH是信维通信(Sunway)推出的工业级厚膜贴片功率电阻,采用2512标准贴片封装,核心定位为通用型功率电阻,适配多数对阻值精度、功率承载有基础要求且需宽温工作的电子电路场景。该产品继承了厚膜电阻的高稳定性、低成本优势,同时兼顾功率容量与封装尺寸的平衡,是工业控制、通信设备、电源模块等领域的常规选型器件。
标称阻值100Ω,精度等级为±5%(型号中“J”代表精度档),可满足90%以上非高精度要求的电路需求(如分压、限流、负载匹配等)。同批次产品阻值离散度控制在±0.2%以内,批次一致性优于行业平均水平。
额定功率1W,可稳定承载1W以内的连续功率损耗;若电路存在脉冲功率需求,需参考信维提供的降额曲线选型(脉冲功率下需将平均功率降低至额定值的70%以内)。
±100ppm/℃,即环境温度每变化1℃,阻值变化幅度不超过±0.01%。在-55℃~+155℃全温区范围内,最大阻值变化量约为±2.1%(210℃温差×100ppm),实际应用中因电路工作温度波动通常小于全温区,阻值稳定性更优。
最大允许工作电压200V,该参数为器件的绝缘耐压能力(与功率无关)。实际使用中需同时满足“功率≤1W”与“电压≤200V”两个条件(以100Ω为例,实际最大安全电压为√(1W×100Ω)=10V)。
-55℃~+155℃,符合工业级器件的宽温要求,可适应严寒(如户外通信基站)、高温(如工业变频器机箱)等极端环境。
2512封装(英制尺寸:0.25英寸×0.12英寸,对应公制6.4mm×3.2mm),属于中功率贴片电阻的常规封装,兼容主流SMT生产线(回流焊、波峰焊工艺),焊接后焊点机械强度可靠(拉脱力≥5N)。
采用厚膜烧结工艺:以高纯度氧化铝陶瓷为基片,印刷钌基电阻浆料后经1200℃高温烧结形成电阻膜,再通过印刷银电极、镍层、锡层形成可焊端,表面覆盖环氧树脂保护层,兼具防潮、防氧化、抗机械损伤能力。
电极采用“银→镍→锡”三层结构,符合IPC J-STD-001标准,回流焊温度范围(220℃~260℃)内焊接性良好,无虚焊、假焊风险。
该产品因宽温、高稳定、中等功率的特点,广泛应用于以下领域:
信维通信作为国内领先的通信元器件提供商,SC2512J1000F1WNKH严格遵循:
该产品以高性价比、宽温适配性成为工业及通信领域的主流选型,可满足多数常规电路的功率电阻需求。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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