WMSIC Electronic Components

ERJ3EKF4020V

ModelERJ3EKF4020V
Package0603
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 ERJ3EKF4020V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF4020V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
402Ω
Electronic Component
1
Electronic Component
BM0264567791
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃
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ERJ3EKF4020V厚膜贴片电阻产品概述

一、核心参数与封装规格

松下ERJ3EKF4020V属于0603封装厚膜贴片电阻,封装尺寸对应英制0603(公制1608),具体为长1.6mm×宽0.8mm×高0.45mm(典型值),适配高密度PCB设计需求。其核心参数如下:

  • 阻值与精度:标称阻值402Ω,精度±1%,采用激光微调工艺保证阻值一致性;
  • 功率等级:额定功率100mW(0.1W),为0603封装厚膜电阻的常规功率规格;
  • 工作电压:最大工作电压75V(直流/交流峰值),需注意该参数为绝对额定值,实际使用需结合功率降额;
  • 温度系数(TC):±100ppm/℃,即温度每变化1℃,阻值变化±402×10⁻⁶=±0.000402Ω,满足宽温环境下的阻值稳定性;
  • 工作温度范围:-55℃~+155℃,覆盖工业级与汽车级的宽温需求。

二、技术特性与性能优势

作为松下经典厚膜贴片电阻系列(ERJ系列)的一员,ERJ3EKF4020V具备以下性能优势:

  1. 阻值稳定性优异:厚膜工艺结合激光微调,生产过程中阻值偏差控制严格,长期使用后阻值漂移小;
  2. 抗环境适应性强:表面采用玻璃釉涂层,具备良好的抗湿性、抗腐蚀性,可应对潮湿、盐雾等复杂环境;
  3. 低噪声特性:厚膜电阻的噪声系数远低于碳膜电阻,适合对信号噪声敏感的电路(如传感器信号放大);
  4. 小型化与集成度高:0603封装体积小,可显著减少PCB占用面积,适配消费电子、通信设备等高密度设计场景;
  5. 可靠性符合行业标准:通过松下内部严格的可靠性测试,符合JEDEC、IEC等国际标准,可满足工业控制、汽车电子的高可靠性需求。

三、典型应用场景

ERJ3EKF4020V的参数特性使其适用于多领域的电路设计:

  • 消费电子:手机、平板、智能穿戴设备的信号调理电路(如音频放大、传感器接口);
  • 工业控制:PLC(可编程逻辑控制器)的输入输出模块、传感器信号放大电路、电机驱动辅助电路;
  • 汽车电子:仪表盘显示电路、辅助驾驶传感器(如毫米波雷达)的信号匹配电路、车身控制模块(BCM)的辅助电路;
  • 通信设备:路由器、交换机、基站的电源滤波电路、阻抗匹配网络;
  • 医疗设备:小型医疗仪器(如血糖仪、血压计)的信号处理电路(依赖其高可靠性与低噪声)。

四、可靠性与环境适应性验证

松下对ERJ3EKF4020V进行了多维度可靠性测试,关键验证项目包括:

  • 温度循环测试:在-55℃~+155℃范围内循环1000次,阻值变化率≤±0.5%;
  • 振动测试:符合MIL-STD-202 Method 201(振动频率10~2000Hz,加速度2g),测试后无开路、短路及阻值漂移;
  • 湿度测试:在85℃/85%RH环境下放置1000小时,阻值变化率≤±1%;
  • 焊接可靠性:通过回流焊(符合J-STD-020标准)与波峰焊测试,焊点无开裂、脱落问题。

五、选型与使用注意事项

  1. 功率降额要求:该电阻额定功率100mW为25℃环境下的数值,当工作温度超过125℃时需线性降额,155℃时最大允许功率为0W(具体降额曲线参考松下官方datasheet);
  2. 电压限制:最大工作电压75V为绝对额定值,实际使用中需确保电压不超过该值,同时需满足( P=V^2/R \leq 100mW )(如402Ω时,( V \leq \sqrt{0.1 \times 402} \approx 6.34V ));
  3. 焊接工艺:推荐采用回流焊,焊接温度曲线需符合J-STD-020,避免超过260℃的峰值温度(回流焊峰值温度≤245℃,时间≤10秒);
  4. 存储与防静电:存储环境温度-40℃~+85℃,湿度≤60%RH,使用前需进行静电防护(符合ESD S20.20标准)。

ERJ3EKF4020V凭借稳定的性能、宽温适应性与高可靠性,成为多领域电路设计中0603封装402Ω±1%厚膜电阻的优选方案。

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