WMSIC Electronic Components

ERJ2GEJ203X

ModelERJ2GEJ203X
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 ERJ2GEJ203X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2GEJ203X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.011g
Electronic Component
20kΩ
Electronic Component
1
Electronic Component
BM0264850027
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.

松下ERJ2GEJ203X厚膜贴片电阻产品概述

松下ERJ2GEJ203X是一款针对通用电子电路优化的厚膜贴片电阻,依托松下成熟的厚膜工艺技术,兼顾性能稳定性与成本优势,广泛适配消费电子、工业控制、小型家电等多领域的小功率电路需求。以下从产品基本信息、技术参数、封装特性、应用场景等维度展开概述。

一、产品基本信息

ERJ2GEJ203X属于松下ERJ2G系列厚膜贴片电阻,型号命名遵循行业通用规则:

  • ERJ2G:系列标识,代表厚膜贴片电阻基础系列;
  • 203:阻值编码(20×10³Ω),对应标称阻值20kΩ,精度等级为±5%;
  • X:封装及衍生标识,对应402标准贴片封装;

产品采用无铅环保工艺制造,符合RoHS、REACH等国际环保标准,可直接用于绿色电子产品设计。

二、核心技术参数详解

该产品的参数围绕通用电路需求优化,关键指标清晰适配不同场景:

  1. 阻值与精度:标称阻值20kΩ,精度±5%,满足大多数信号调理、分压偏置电路的精度要求,无需额外校准即可稳定工作;
  2. 功率特性:额定功率100mW(0.1W),常温(25℃)下可满功率运行,高温环境需按降额曲线调整(建议70℃以上降额至80%以内);
  3. 温度系数(TCR):±200ppm/℃,即温度每变化1℃,阻值漂移约0.02%,在宽温范围内保持阻值稳定;
  4. 工作温度范围:-55℃~+155℃,覆盖工业现场极端温度场景(如低温存储、高温车间),可靠性符合IEC 60115-1标准;
  5. 工艺类型:厚膜电阻工艺,通过丝网印刷、高温烧结制备,相比薄膜电阻成本更低,同时具备较好的抗脉冲能力。

三、封装与物理特性

产品采用402标准贴片封装(英制尺寸,对应公制约1.0mm×0.5mm),体积小巧,可有效节省PCB板空间,适配高密度集成设计(如智能手机主板、小型智能模块)。

封装引脚采用可焊性优良的合金材料,兼容回流焊、波峰焊等主流贴装工艺,焊接后可靠性符合J-STD-002标准。产品表面印有清晰的阻值标识(203),便于生产环节的目视检测。

四、典型应用场景

ERJ2GEJ203X因参数匹配性强,广泛应用于以下领域:

  1. 消费电子:智能手机/平板的信号滤波电路、按键分压电路,蓝牙耳机的电源偏置电阻;
  2. 小型家电:智能遥控器的红外发射电路、加湿器的水位检测电路,智能插座的电流采样分压电阻;
  3. 工业控制:小型PLC的IO接口电路、传感器信号调理电路(如温度传感器分压偏置);
  4. 汽车电子:车载辅助电路(氛围灯控制、仪表盘背光调节)的小功率电阻,适配汽车级部分温度需求;
  5. 通信设备:路由器/交换机的小信号放大电路负载电阻,光纤收发器的偏置电路。

五、性能优势与适用场景匹配

该产品的核心优势在于“性能与成本的平衡”:

  • 宽温适配:-55℃~+155℃的温度范围,避免工业环境下的性能波动;
  • 小封装集成:402封装支持高密度设计,满足便携式设备小型化需求;
  • 成本可控:厚膜工艺降低成本,适合批量生产的通用电路,无需为高精度支付溢价;
  • 功率适配:100mW额定功率覆盖绝大多数小功率电路,简化设计降额流程。

六、选型与使用注意事项

  1. 精度匹配:若电路需更高精度(如±1%),需选择松下ERJ3G系列薄膜电阻,避免信号误差;
  2. 功率降额:高温(>100℃)或高湿度环境下,建议将使用功率降至额定值的70%以内,延长寿命;
  3. 焊接工艺:回流焊峰值温度控制在220℃~250℃,焊接时间不超过30秒,避免过热损坏电阻膜;
  4. 存储要求:未开封产品存储在10℃35℃、湿度40%60%的环境中,开封后建议1年内使用完毕,避免受潮影响可焊性。

综上,松下ERJ2GEJ203X厚膜贴片电阻凭借稳定的性能、合理的成本及广泛的适配性,成为通用电子电路设计的优选元件,可满足多领域小功率电路的需求。

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