WMSIC Electronic Components

ERJ2GEJ332X

ModelERJ2GEJ332X
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 ERJ2GEJ332X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2GEJ332X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.011g
Electronic Component
3.3kΩ
Electronic Component
1
Electronic Component
BM0257247256
Operating Temperature
55℃~+155℃
Electronic Component
±200ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

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

ERJ2GEJ332X 贴片厚膜电阻器产品概述

一、产品定位与核心身份

ERJ2GEJ332X是松下(PANASONIC)推出的0402封装贴片厚膜电阻器,属于常规精度、小功率电阻系列,针对消费电子、工业控制、汽车电子等领域的基础电路设计,兼顾成本可控性与基本性能稳定性,是自动化SMT生产中常用的标准化电阻器件。其核心身份可概括为:低成本厚膜工艺+小体积0402封装+宽温适应性,适配大多数非精密电路的阻值匹配需求。

二、关键电气参数详解

该电阻的核心电气指标明确了应用边界,具体拆解如下:

  1. 阻值与精度:标称阻值3.3kΩ(标识代码“332”,即33×10²Ω),精度±5%,属于E24系列电阻(阻值符合5%精度的标准化序列),满足分压、限流、信号匹配等基础电路的阻值偏差要求;
  2. 功率额定值:100mW(0.1W),对应0402封装的常规功率容量,实际应用需遵循功率降额原则(建议负载功率不超过70mW,即额定值的70%),避免长期过热导致阻值漂移;
  3. 温度系数(TCR):±200ppm/℃,表示环境温度每变化1℃,阻值变化量为标称值的百万分之200。以3.3kΩ为例,温度每升高10℃,阻值约增加6.6Ω,该温系水平可满足一般信号调理、低压电源电路的稳定性要求;
  4. 工作温度范围:-55℃至+155℃,覆盖工业级宽温需求,可适应低温环境(如北方户外设备)、高温环境(如汽车仪表盘、充电器内部)的稳定运行。

三、机械封装与工艺特性

ERJ2GEJ332X采用0402英制贴片封装(公制对应1005),机械尺寸为:长度1.0±0.2mm、宽度0.5±0.2mm、厚度0.3±0.1mm,焊盘间距约0.3mm,完全兼容主流SMT贴片机的生产要求,适合高密度PCB设计。

工艺上采用厚膜印刷烧结技术:通过丝网印刷将钌基氧化物电阻浆料涂覆在氧化铝陶瓷基板上,经高温烧结形成致密电阻膜,再通过激光微调阻值至标称值,最后覆盖玻璃釉保护层。该工艺的优势在于:

  • 成本低于薄膜电阻,适合批量应用;
  • 电阻膜与基板结合牢固,抗机械冲击、振动性能优于碳膜电阻;
  • 玻璃釉保护层可有效隔绝潮气、灰尘,提升长期可靠性。

四、环境适应性与可靠性

除宽温工作范围外,ERJ2GEJ332X的可靠性体现在:

  1. 抗环境应力:符合IEC 60068-2等环境试验标准,可承受-55℃至+155℃的温度循环(1000次)、85℃/85%RH的湿热测试(1000小时),满足工业级产品的可靠性要求;
  2. 长期稳定性:松下厚膜工艺控制严格,1000小时负载寿命测试中,阻值漂移率通常小于0.5%,可保证电路长期运行的一致性;
  3. 环保合规:符合RoHS 2.0、REACH等欧盟环保指令,不含铅、镉等有害物质,适配全球市场的环保要求。

五、典型应用场景

基于电气参数与封装特性,ERJ2GEJ332X广泛应用于:

  1. 消费电子:手机、平板的电源分压电路、LED状态指示灯限流、音频信号滤波;
  2. 工业控制:PLC输入输出接口限流、传感器信号调理电路的匹配电阻;
  3. 汽车电子:汽车仪表盘背光驱动限流、车身控制模块(BCM)辅助电路;
  4. 通信设备:路由器、交换机的电源辅助电路、信号接口阻抗匹配。

六、选型与应用注意事项

  1. 功率降额:脉冲负载场景需进一步降额至50%以下(≤50mW),避免瞬时功率过载损坏;
  2. 温系匹配:若电路对阻值稳定性要求较高(如精密仪表、医疗设备),需选择TCR更低的薄膜电阻(如±50ppm/℃),此款仅适合一般场景;
  3. PCB设计:焊盘尺寸需符合IPC-7351标准(建议焊盘长度0.6-0.7mm,宽度0.3-0.4mm),避免锡桥或虚焊;
  4. 存储条件:未开封产品存储于-10℃至+40℃、相对湿度≤60%环境,开封后12个月内使用完毕,避免受潮影响焊接性能。

ERJ2GEJ332X凭借平衡的性能与成本,成为工业、消费电子领域基础电路的主流选择,其标准化参数也降低了电路设计与生产的复杂度。

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