WMSIC Electronic Components

ERA2AEB5491X

ModelERA2AEB5491X
Package0402
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 ERA2AEB5491X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
63mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERA2AEB5491X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.011g
Electronic Component
5.49kΩ
Electronic Component
1
Electronic Component
BM0257349704
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

ERA2AEB5491X 贴片薄膜电阻产品概述

ERA2AEB5491X是松下(PANASONIC)推出的一款0402封装高精度薄膜贴片电阻,针对对阻值精度、温度稳定性要求较高的小型化电子电路设计,兼具小体积与高可靠性,适用于多类精密应用场景。

一、产品核心定位与身份识别

该型号属于松下薄膜电阻系列,采用0402封装(英制代码,对应公制1005规格),核心定位为小功率高精度薄膜电阻——既满足便携设备的高密度贴装需求,又通过薄膜工艺实现远超厚膜电阻的精度与稳定性,是精密模拟电路、小型化电子设备的理想选择。

二、关键电气参数详解

1. 阻值与精度

阻值为5.49kΩ(即5490Ω),精度等级为±0.1%,属于行业内较高的精度水平(常规贴片电阻精度多为±1%、±0.5%)。该精度可满足传感器信号调理、精密分压等对阻值匹配要求严格的场景,减少电路误差。

2. 功率与电压额定值

  • 额定功率:63mW(0.063W),在0402封装中属于较高功率密度(常规0402电阻功率多为25mW~50mW),可适配中等负载的小型电路;
  • 最大工作电压:50V,需注意功率与电压的约束关系(实际使用中功率不超过63mW,电压不超过50V),避免过压过功率损坏。

3. 温度特性

温度系数(TCR)为**±25ppm/℃**,表示温度每变化1℃,阻值变化约±25×10⁻⁶倍。以100℃温度变化为例,阻值漂移约±13.7Ω,远低于常规厚膜电阻(TCR多为±100ppm/℃以上),确保宽温环境下阻值稳定。

4. 工作温度范围

支持**-55℃~+155℃**宽温工作,覆盖工业级、部分汽车级应用的温度需求,可适应极端环境下的长期稳定运行。

三、封装与工艺特性

1. 0402封装优势

封装尺寸为1.0mm(长)×0.5mm(宽)×0.4mm(厚),体积小巧,适合智能手机、智能穿戴、蓝牙耳机等便携设备的高密度PCB布局,可显著提升电路集成度。

2. 薄膜电阻工艺

采用松下成熟的薄膜电阻工艺(通常为镍铬或钌基薄膜),相比厚膜电阻具有三大核心优势:

  • 更低的噪声:适合对信号噪声敏感的模拟电路(如音频、传感器信号);
  • 更高的稳定性:长期使用阻值漂移小,减少电路校准需求;
  • 更窄的温度系数:如上述±25ppm/℃,温度适应性更强。

3. 结构可靠性

电阻结构为陶瓷基板+薄膜电阻层+电极+绝缘保护层,陶瓷基板提供良好的热传导与机械强度,保护层可抵御湿度、灰尘等环境因素,提升长期可靠性。

四、典型应用场景

1. 精密模拟电路

  • 传感器信号调理:应变片、温度传感器、压力传感器的信号放大、分压电路(需高精度电阻匹配以减少误差);
  • 测试仪器:示波器、万用表、信号发生器的精密分压网络、反馈电路。

2. 小型化电子设备

  • 便携设备:智能手机、智能手表、TWS耳机的电源管理、音频电路(小体积适配高密度布局);
  • 可穿戴设备:健康监测设备(如心率、血氧传感器电路)的精密电阻匹配。

3. 工业与汽车电子

  • 工业控制:PLC模块、工业传感器的信号处理电路(宽温范围适应工业环境);
  • 汽车电子:汽车仪表、车身传感器电路(若符合汽车级认证,可覆盖车载温度需求)。

五、品牌与品质保障

作为松下出品的薄膜电阻,ERA2AEB5491X具备可靠的品质背书:

  • 严格的生产管控:松下全球标准化生产流程,确保批量产品的一致性;
  • 环保合规:符合RoHS、REACH等国际环保指令,无有害物质;
  • 可靠性测试:通过振动、温度循环、湿度等可靠性测试,满足工业级应用要求。

总结:ERA2AEB5491X以0402小封装、±0.1%高精度、±25ppm/℃低温度系数为核心优势,适配多类精密电子电路,是小型化、高可靠性应用的优选薄膜电阻。

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