WMSIC Electronic Components

ERA3AEB473V

ModelERA3AEB473V
Package0603
BrandPANASONIC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANASONIC ERA3AEB473V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERA3AEB473V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.03g
Electronic Component
47kΩ
Electronic Component
1
Electronic Component
BM0264570330
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±25ppm/℃
Resistor Type
Resistor

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ERA3AEB473V 高可靠性薄膜贴片电阻器产品概述

ERA3AEB473V是松下(PANASONIC)推出的一款工业级高精密薄膜贴片电阻器,针对对阻值精度、温度稳定性及长期可靠性要求严苛的应用场景设计,凭借均衡的性能参数与成熟的制造工艺,成为众多高端电子设备的核心被动元件选择。

一、产品核心定位与品牌背书

作为松下被动元件产品线中的经典型号,ERA3AEB473V定位于工业级高精密薄膜电阻,区别于普通厚膜或碳膜电阻,其采用真空溅射薄膜工艺实现低漂移、高精度特性,同时依托松下数十年电子元件技术积累,在可靠性、一致性上具备显著优势。该产品主打“高稳定、宽温域、小体积”,适配自动化贴装与高密度电路设计需求。

二、关键技术参数深度解析

ERA3AEB473V的参数设计精准匹配精密电子系统核心需求,各指标实际意义如下:

2.1 阻值与精度

  • 阻值:47kΩ(标注代码“473”,即47×10³Ω),符合国际电阻标注规范;
  • 精度:±0.1%,属于工业级高精密范畴——相比普通±1%电阻,阻值偏差缩小10倍,可有效降低精密电路(如传感器信号调理、仪器校准回路)的系统误差。

2.2 功率与电压额定值

  • 额定功率:100mW(0.1W),适配0603封装的典型功率承载能力;
  • 最大工作电压:75V,为直流/交流峰值电压上限,实际使用需结合功率降额(建议负载功率不超额定值70%),避免过热导致阻值漂移或损坏。

2.3 温度特性与工作范围

  • 温度系数(TCR):±25ppm/℃,即温度每变1℃,阻值漂移约1.175Ω(47kΩ×25×10⁻⁶);相比普通厚膜电阻(TCR通常±100ppm/℃以上),温度稳定性提升4倍,宽温域下阻值一致性更优;
  • 工作温度范围:-55℃~+155℃,覆盖工业级极端温度(如户外设备、车载辅助系统高低温冲击),满足长期稳定工作需求。

三、封装与可靠性设计亮点

3.1 0603封装适配性

采用英制0603封装(对应公制1608,尺寸1.6mm×0.8mm),体积紧凑,支持高密度PCB布局;贴片式设计兼容自动化SMT生产线,焊接效率高,适合批量生产。

3.2 薄膜工艺与可靠性保障

  • 真空溅射薄膜层:相比厚膜印刷工艺,阻值分布更均匀,噪声更低(典型值<0.1μV/√Hz),长期稳定性显著提升;
  • 防护与焊接可靠性:电极采用多层金属结构(Ni/Cr底层+无铅镀层),耐焊接热冲击性能优异,同时具备抗湿、抗硫化特性,可适应潮湿或含硫工业环境。

四、典型应用领域

ERA3AEB473V的性能特性使其广泛应用于:

  1. 工业自动化:PLC输入/输出模块、传感器信号放大电路(压力、温度传感器调理回路),需高稳定分压与信号匹配;
  2. 医疗仪器:监护仪、血液分析仪等精密测量电路,对阻值精度与长期漂移要求严苛;
  3. 通信设备:基站射频前端、路由器信号调理单元,需宽温域下稳定阻抗匹配;
  4. 高端消费电子:专业音频设备(解码器、耳放)信号滤波回路,低噪声特性提升音质纯净度。

五、选型与使用注意事项

  1. 功率降额:实际负载功率建议不超70mW(额定值70%),避免过热导致TCR变化或阻值漂移;
  2. 温度环境考量:若环境温度变化超40℃(如-20℃→+20℃),阻值漂移约47Ω,需结合系统误差预算调整;
  3. 焊接工艺:回流焊峰值温度控制在240℃~250℃(时间<60s),避免损坏薄膜层;
  4. 存储条件:建议存储于-40℃~+30℃、湿度<60%环境,长期存储(>12个月)后需检查焊接性能。

综上,ERA3AEB473V凭借高精密、宽温域、高可靠性的综合优势,成为工业、医疗、通信等领域精密电路设计的可靠选择,可有效提升系统稳定性与测量精度。

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