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ERA3AEB5112V是松下(PANASONIC)推出的0603封装高精度薄膜贴片电阻,属于小功率精密电阻范畴,核心面向对阻值精度、温度稳定性要求较高的电子电路设计场景。其型号编码清晰对应核心参数:“ERA3”代表薄膜电阻系列,“AEB”对应封装与功率等级,“5112”为阻值代码(51.1kΩ,前三位511×10²),“V”标识±0.1%精度,可快速识别产品特征。
该电阻的关键参数直接决定适用场景,具体如下:
阻值为51.1kΩ,精度等级为**±0.1%**——属于精密电阻范畴(通常±1%以下为精密),可有效降低电路中因阻值偏差导致的信号失真、测量误差,适合对阻值一致性要求高的批量生产或校准电路。
额定功率100mW,最大工作电压75V。两者匹配性验证:最大允许电流I=V/R≈75V/51.1kΩ≈1.47mA,此时功率损耗I²R≈0.11W,与100mW额定值接近,满足实际电路功率余量需求。
温度系数(TCR)±25ppm/℃,工作温度范围**-55℃~+155℃**。低TCR意味着阻值随温度变化漂移极小(如100℃温差仅变±0.25%);宽温范围覆盖工业级、部分汽车级及高温作业设备,适用性广。
采用0603封装(英制1.6mm×0.8mm,公制1608),属于小型化贴片封装,可节省PCB空间,适合高密度集成设计(如智能手机、小型医疗设备)。
ERA3AEB5112V基于薄膜电阻工艺制造,相比厚膜电阻优势明显:
此外,松下产品经严格可靠性测试(高低温循环、湿度老化、振动冲击等),符合IEC/JIS国际标准,恶劣环境下长期稳定。
该电阻的参数特性适配以下场景:
该产品以高精度、宽温稳定、小型化等特点,成为精密电子电路设计的可靠选择。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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