WMSIC Electronic Components

ERJ3EKF3000V

ModelERJ3EKF3000V
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 ERJ3EKF3000V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF3000V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
300Ω
Electronic Component
1
Electronic Component
BM0211622045
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.

ERJ3EKF3000V 厚膜贴片电阻产品概述

一、产品基本定位与核心标识

ERJ3EKF3000V是松下(PANASONIC)旗下的工业级厚膜贴片电阻,属于小型化、低功率的基础电路器件。型号命名中:

  • “ERJ”为松下厚膜电阻系列标识;
  • “3E”对应封装(0603)与功率(100mW)等级;
  • “KF3000”明确阻值为300Ω(前三位300,第四位0代表倍率10⁰);
  • “V”后缀关联±1%精度与±100ppm/℃温度系数。

该产品核心定位为信号调理、偏置电路的稳定电阻,适配多类电子设备的高密度PCB设计需求。

二、关键性能参数深度解析

1. 阻值与精度控制

阻值标称300Ω,精度等级±1%,属于厚膜电阻的商用主流级别。无需额外校准即可满足:

  • 分压电路的比例精度(如电池电量检测);
  • 传感器偏置的稳定性(如热敏电阻信号调理)。

2. 功率与电压限制

  • 额定功率:100mW(0.1W),为0603封装厚膜电阻的典型功率等级;
  • 最大工作电压:75V(注意:实际使用需同时满足功率限制,即( V \leq \sqrt{P \times R} \approx 5.48V ),避免过功率损坏);
  • 短时间过载:可承受5秒内2倍额定电压(150V),具备基础过压防护能力。

3. 温度系数(TCR)

温度系数为±100ppm/℃,即温度每变化1℃,阻值变化±0.01%。以极端场景为例:

  • 从25℃(室温)到155℃(最高工作温度),温度变化130℃,阻值最大变化1.3%;
  • 结合±1%初始精度,总阻值偏差控制在±2.3%以内,满足高低温环境稳定性。

4. 工作温度范围

覆盖-55℃至+155℃,符合工业级设备要求(如车载低温启动、户外设备高温运行),可长期在极端温度下稳定工作。

三、封装与工艺特性

1. 封装规格

采用0603封装(英制:0.06″×0.03″;公制:1.6mm×0.8mm),体积小巧:

  • 适配高密度PCB设计(如手机主板、小型PLC);
  • 支持回流焊、波峰焊等常规贴片工艺,生产兼容性好。

2. 厚膜工艺优势

通过“丝网印刷电阻浆料→高温烧结→电极制作”工艺制成,相比薄膜电阻:

  • 成本更低,适合大规模批量应用;
  • 抗浪涌能力更强,不易因瞬时电压冲击损坏;
  • 批量阻值一致性高(偏差集中在±1%范围内)。

四、典型应用场景

  1. 消费电子便携设备:手机、平板的音频放大偏置、电池管理分压电路;
  2. 工业控制模块:PLC输入输出接口限流、PT100温度传感器偏置电阻;
  3. 通信设备:小型路由器、无线AP的射频前端滤波/分压(低功率信号路径);
  4. 汽车电子(低功率):车载中控按键检测、胎压监测模块辅助电阻(部分批次符合AEC-Q200标准)。

五、可靠性与环境适应性

  1. 长期稳定性:1000小时老化测试显示阻值漂移≤0.5%,满足设备长期运行需求;
  2. 湿度耐受性:可在95%相对湿度(40℃)环境下长期工作,无明显阻值变化;
  3. 机械强度:焊接强度符合IPC标准,可承受常规振动、冲击测试(如汽车级振动)。

六、品牌与品质保障

松下作为全球电子元器件龙头,该产品符合:

  • RoHS 2.0(无铅环保)、REACH等国际标准;
  • IEC 60115-1电阻器通用标准测试。

批量供应时参数一致性高,可降低电路调试成本,是中低端电子设备的可靠选择。

总结:ERJ3EKF3000V以“小型化、高稳定、低成本”为核心优势,适配多类电子设备的基础电路需求,是松下厚膜电阻系列的经典商用型号。

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