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ERJ3EKF4022V是松下(PANASONIC)推出的精密级厚膜贴片电阻,属于该品牌常规精密电阻系列,采用0603(英制封装,对应公制1608)小型贴片封装,专为对阻值精度、宽温稳定性有基础要求的电子电路设计,兼顾性能与成本优势,适用于消费电子、工业控制等多领域应用。
该电阻标称阻值为40.2kΩ(标识代码“4022”对应“402×10²Ω”),精度等级为**±1%**,可满足多数电路对阻值一致性的要求(如分压电路的精准电压输出、限流电路的电流稳定控制),无需额外校准即可实现基础精准度。
温度系数(TCR)为**±100ppm/℃**,即温度每变化1℃,阻值变化约±4.02Ω((40.2kΩ×100×10^{-6}))。结合工作温度范围,在-55℃至+155℃的210℃温差下,总阻值变化约±844Ω,相对变化率约±2.1%,可满足宽温环境下的基本阻值稳定性需求。
工作温度覆盖**-55℃~+155℃**,符合工业级电子设备的环境要求,可应用于户外设备、汽车电子(非高温极端场景)、工业PLC等对温度变化敏感的场景。
采用厚膜电阻工艺,相比薄膜电阻成本更低,且具有较好的抗老化性、耐冲击性,长期使用阻值漂移小;同时,厚膜电阻的功率密度适中,适合0603封装的小型化设计。
松下对该系列电阻进行了常规可靠性试验,包括温度循环(-55℃~+155℃循环)、湿度试验(85℃/85%RH)、耐电压试验(1.5倍额定电压)等,符合IEC 60115等国际电子元件标准,可保证量产批次的一致性与长期可靠性。
采用0603贴片封装(尺寸:1.6mm×0.8mm,厚度约0.45mm),体积小巧,适合自动化贴装(SMT)生产,可有效节省PCB布局空间,满足小型化电子设备的设计需求。
作为全球领先的电子元器件制造商,松下在电阻器领域拥有成熟的生产工艺与严格的品质管控体系,ERJ3EKF4022V的批次一致性好,阻值偏差、温漂等参数符合产品规格,可降低电路设计的调试成本。
该产品符合RoHS 2.0、REACH等环保标准,采用无铅焊接工艺,可兼容现代SMT生产线的无铅焊接要求,避免环保合规风险。
松下全球供应链稳定,可支持中小批量至大规模量产需求;同时提供完善的技术资料(如 datasheet、应用手册)与技术支持,帮助客户快速完成电路设计与验证。
ERJ3EKF4022V凭借精准的阻值控制、宽温适应性与可靠的品牌品质,成为中小功率电路中平衡性能与成本的优选电阻器之一。
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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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