WMSIC Electronic Components

ERJ2GEJ202X

ModelERJ2GEJ202X
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 ERJ2GEJ202X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2GEJ202X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.011g
Electronic Component
2kΩ
Electronic Component
1
Electronic Component
BM0264850073
Operating Temperature
55℃~+155℃
Operating Voltage
15V
Electronic Component
±200ppm/℃
Resistor Type
Resistor

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

ERJ2GEJ202X 松下厚膜贴片电阻产品概述

一、产品基本定位与核心特性

ERJ2GEJ202X是松下电子推出的0402封装通用型厚膜贴片电阻,属于小功率电阻范畴,核心定位为「尺寸紧凑、成本可控、环境适应性强」的基础电子元件,可满足多数消费电子、工业控制等领域的小信号电路需求。

作为厚膜电阻的典型代表,该产品兼具两大优势:一是厚膜工艺带来的高性价比与稳定性能,二是0402贴片封装适配高密度PCB设计的特点。核心参数明确:标称阻值2kΩ、精度±5%、额定功率100mW、工作电压15V、温度系数±200ppm/℃、工作温度范围-55℃~+155℃,覆盖常规电子设备的典型使用场景。

二、关键电气参数详解

1. 阻值与精度

标称阻值为2kΩ(2000Ω),精度等级±5%,属于通用型电阻的标准精度范围。在常规电路中(如分压、限流、滤波网络),无需额外校准即可实现基本功能,满足多数非精密信号调理需求。

2. 功率与电压

  • 额定功率:100mW(0.1W),为小功率电路设计的典型参数;
  • 额定工作电压:15V。根据功率公式 ( P=U^2/R ),15V电压下该电阻功耗为 ( 15^2/2000=0.1125W ),略高于额定功率,因此实际使用需严格控制电压不超过15V,或通过降额设计(如80%功率以下)保证长期可靠性。

3. 温度系数(TCR)

温度系数为**±200ppm/℃**,表示温度每变化1℃,阻值变化约±0.02%。在-55℃~+155℃的宽温范围内(温差210℃),最大阻值变化仅±0.42%,远低于±5%的精度要求,可有效保证宽温环境下电路性能稳定。

4. 工作温度范围

覆盖**-55℃~+155℃**,满足工业级设备(如户外传感器、车载辅助电路)的环境温度要求,无需额外散热或温度补偿即可稳定工作。

三、封装与物理特性

ERJ2GEJ202X采用0402贴片封装(行业标准尺寸:长0.4mm±0.02mm、宽0.2mm±0.02mm、厚度约0.15mm),是小型化电子设备的主流封装之一,适配高密度PCB设计(如智能手机、可穿戴设备主板)。

封装基底为陶瓷材质,具备良好的导热性与机械强度,可承受SMT回流焊工艺(峰值温度约260℃,持续时间≤10秒),且符合RoHS无铅环保标准,满足全球电子市场的合规要求。

四、环境适应性与可靠性

1. 耐温与耐湿

  • 回流焊兼容性:符合松下推荐的回流焊温度曲线,避免焊接过程中电阻膜损坏;
  • 湿热稳定性:通过IEC 60068-2-67湿热测试(40℃/95%RH),高湿度环境下电气性能无明显衰减。

2. 机械可靠性

陶瓷基底与厚膜电阻膜的结合力强,可承受振动(10~2000Hz,加速度2g)、冲击(峰值加速度1000g)等机械应力,符合IEC 60068-2-6等标准,适用于车载、工业等对机械稳定性要求较高的场景。

五、典型应用场景

ERJ2GEJ202X因尺寸小、成本低、性能稳定,广泛应用于以下领域:

  1. 消费电子:智能手机、智能手表、平板电脑的主板电路(电源分压、信号限流、滤波网络);
  2. 工业控制:小型PLC、传感器模块的信号调理(电压基准分压、电流采样);
  3. 汽车电子:车载信息娱乐系统、辅助驾驶模块的辅助电路(指示灯限流、低功耗信号传输);
  4. 通信设备:小型路由器、无线模块的射频辅助电路(匹配网络、偏置电路)。

六、选型与使用注意事项

  1. 降额设计:实际工作功率建议控制在额定功率的80%以下(≤80mW),延长产品寿命;
  2. 贴装工艺:需使用0402封装专用贴装设备,回流焊温度曲线需参考松下官方datasheet;
  3. 存储条件:未开封产品存储于-20℃~+40℃、湿度≤60%RH环境,开封后12个月内使用完毕,避免受潮影响焊接性能;
  4. 精度匹配:若需更高精度(如±1%)或更低温度系数(如±50ppm/℃),需选择对应等级的精密电阻(如薄膜电阻)。

总结

ERJ2GEJ202X作为松下厚膜贴片电阻的经典型号,凭借紧凑尺寸、稳定性能与高性价比,成为众多电子设计的可靠选择,适用于多数常规小信号电路的小功率应用场景,是消费电子、工业控制等领域的基础元件优选。

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