WMSIC Electronic Components

ERJ3EKF5110V

ModelERJ3EKF5110V
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 ERJ3EKF5110V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF5110V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
511Ω
Electronic Component
1
Electronic Component
BM0257349751
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ERJ3EKF5110V精密厚膜贴片电阻器产品概述

一、产品定位与核心特性

ERJ3EKF5110V是松下推出的精密级厚膜贴片电阻,针对对阻值精度、温度稳定性及小体积有严格要求的电子电路设计,核心定位为“高性价比精密小型化电阻”。其核心特性可概括为:

  1. 高精度(±1%)满足信号调理、微弱信号放大等场景;
  2. 宽温范围(-55℃~+155℃)适配工业、汽车等极端环境;
  3. 小封装(0603)支持高密度PCB布局;
  4. 稳定的温度系数(±100ppm/℃)降低宽温下的阻值漂移。

二、关键参数深度解析

1. 阻值与精度

额定阻值为511Ω,精度等级为±1%,远高于普通贴片电阻(±5%)。该精度可直接应用于需要准确分压、电流采样的电路(如传感器信号放大、电源反馈回路),无需额外校准。

2. 功率与电压

  • 额定功率:100mW,对应0603封装的典型功率等级,实际使用时建议按70%~80%降额(即≤80mW),避免长期过载导致阻值漂移;
  • 工作电压:75V(直流/交流峰值),为电阻的最大耐受电压,超过该值可能引发击穿或烧毁。

3. 温度特性

温度系数(TCR)为**±100ppm/℃**,表示每变化1℃,阻值变化率为±100×10⁻⁶。以最大温差(155℃-25℃=130℃)计算,阻值最大漂移为±1.3%,仍处于±1%精度的容差范围内,保证宽温下的性能稳定。

4. 工作温度范围

覆盖**-55℃~+155℃**,符合工业级温度标准,可在低温(如寒冷地区户外设备)、高温(如汽车发动机舱、工业炉旁电路)环境下长期可靠工作。

三、封装与可靠性设计

1. 0603封装优势

采用英制0603封装(公制1608,尺寸0.6mm×0.3mm),体积小、重量轻,适合智能手机、智能穿戴、小型工业模块等高密度PCB设计,有效节省板级空间。

2. 厚膜工艺与可靠性

  • 厚膜电阻工艺:通过丝网印刷、烧结形成电阻膜,兼具抗过载能力与成本优势,比薄膜电阻更耐冲击;
  • 松下工艺控制:采用激光微调技术实现高精度阻值,同时经过高温老化、温度循环等可靠性测试,符合IEC 60115-1等国际标准,失效率低。

四、典型应用场景

ERJ3EKF5110V的特性使其广泛应用于以下领域:

  1. 工业控制:PLC输入输出模块、传感器接口电路(如温度、压力传感器的信号调理);
  2. 消费电子:智能手表、蓝牙耳机的音频信号放大、电源管理回路;
  3. 汽车电子:辅助驾驶系统的雷达传感器接口、车身控制模块的低功率电路;
  4. 医疗设备:监护仪的心率、血氧信号放大,保证微弱信号的准确采集。

五、使用注意事项

  1. 功率降额:实际工作功率≤80mW(70%降额),避免长期过载;
  2. 电压限制:直流/交流峰值电压≤75V,防止击穿;
  3. 焊接工艺:回流焊温度不超过260℃(峰值),波峰焊时间≤5秒,避免高温损坏电阻膜;
  4. 存储条件:常温干燥环境(温度25℃±5℃,湿度≤60%),避免受潮导致阻值变化。

总结

ERJ3EKF5110V作为松下精密厚膜贴片电阻,以高精度、宽温稳定、小体积为核心优势,适配多领域的电子电路设计需求,兼具可靠性与成本效益,是工业、消费、汽车等行业的优选电阻元件。

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