WMSIC Electronic Components

ERA2AEB243X

ModelERA2AEB243X
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 ERA2AEB243X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
63mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERA2AEB243X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.015g
Electronic Component
24kΩ
Electronic Component
1
Electronic Component
BM0257349677
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.

松下ERA2AEB243X薄膜贴片电阻产品概述

一、产品核心身份与型号解析

ERA2AEB243X是松下电子推出的小型化高精度薄膜贴片电阻,属于其表面贴装薄膜电阻系列的主流型号。型号命名隐含关键信息:

  • ERA2:松下薄膜电阻系列标识(适配表面贴装工艺);
  • AE:0402封装的细分编码;
  • B243:阻值编码(24×10³Ω=24kΩ);
  • X:精度等级(对应±0.1%)。

该产品定位为“小体积、高精度、宽温稳定”的基础元件,核心适配高密度、小型化电子系统设计。

二、关键性能参数详解

参数直接支撑应用场景,核心指标如下:

  1. 阻值与精度:标称24kΩ,精度±0.1%。此精度远高于普通厚膜电阻(±1%~±5%),可满足精密电路中阻值一致性要求(如基准电压分压、信号放大反馈网络)——实际偏差仅±24Ω,对小信号电路影响极小。
  2. 功率与电压:额定功率63mW(与描述中62.5mW一致,为封装功率极限),最大工作电压50V。功率适配小信号电路(如传感器前端、通信模块偏置),避免过载风险;电压参数覆盖常规低压系统需求。
  3. 温度特性:温度系数(TCR)±25ppm/℃,工作温度-55℃~+155℃。宽温范围可覆盖车载、工业现场等极端环境;低TCR确保温度变化时阻值波动极小——210℃温差下总变化仅约12.6Ω,远低于普通电阻。
  4. 封装尺寸:0402封装(英制0.04″×0.02″,公制1.0mm×0.5mm),厚度≈0.3mm,是当前小型电子设备的主流高密度封装。

三、材料与工艺优势

采用松下成熟的镍铬薄膜沉积工艺,相比厚膜电阻具有明显优势:

  • 精度与稳定性:薄膜工艺可实现精细阻值调整,避免厚膜电阻的浆料不均问题,长期使用阻值漂移极小(松下典型漂移≤50ppm/1000小时);
  • 低温度系数:镍铬薄膜固有特性使TCR远低于厚膜电阻(厚膜通常≥±100ppm/℃),温度变化对阻值影响可忽略;
  • 焊接可靠性:表面贴装设计适配回流焊工艺,焊点一致性好,适合大规模自动化生产(松下推荐回流焊峰值温度240℃~260℃,时间≤30s)。

四、典型应用场景

基于参数特性,该产品主要应用于以下领域:

  1. 便携式消费电子:智能手机、智能手表、无线耳机的信号调理电路(如音频放大、射频前端偏置),利用0402封装实现PCB高密度布局;
  2. 精密测量仪器:数字万用表、示波器、传感器校准装置,依赖±0.1%精度和低TCR确保测量准确性(如万用表电压档分压网络);
  3. 工业控制模块:小型PLC、传感器接口、工业物联网(IIoT)终端的信号转换电路,宽温范围适配现场极端环境(如车间高低温交替);
  4. 汽车电子(小信号):车载显示屏、胎压监测模块的辅助电路(需注意功率适配,不适合大电流场景)。

五、市场定位与竞争价值

在0402封装高精度电阻中,ERA2AEB243X的核心竞争力在于:

  • 品牌可靠性:松下电子元件在工业领域认可度高,产品一致性与长期稳定性有保障(批量生产阻值偏差控制在±0.08%以内);
  • 参数平衡:在精度(±0.1%)、温漂(±25ppm/℃)、封装(0402)间实现最优平衡——比金属箔电阻成本低30%以上,比厚膜电阻性能提升2~3倍;
  • 宽温适配:无需额外筛选温度等级,直接覆盖-55℃~+155℃全范围,降低选型成本。

六、使用注意事项

  1. 功率限制:实际功耗需≤63mW,计算工作电流上限为≈1.62mA(I=√(P/R));
  2. 焊接工艺:避免过热(回流焊峰值温度不超过260℃),否则可能损坏薄膜层;
  3. 存储条件:未开封产品存储于-40℃~+60℃、湿度≤75%环境,开封后1个月内使用(避免引脚氧化影响焊接)。

该产品以“小体积+高精度+宽温稳定”为核心,是小型化电子设备中替代普通厚膜电阻的理想选择,尤其适合对阻值一致性和环境适应性要求较高的场景。

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