WMSIC Electronic Components

ERJ3EKF2492V

ModelERJ3EKF2492V
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 ERJ3EKF2492V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF2492V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
24.9kΩ
Electronic Component
1
Electronic Component
BM0264567845
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.

ERJ3EKF2492V 松下厚膜贴片电阻产品概述

ERJ3EKF2492V是松下(PANASONIC)推出的通用型厚膜贴片电阻,属于ERJ系列成熟产品线,针对中低功率精密电路设计,以高可靠性、宽温适应性和紧凑封装为核心特点,广泛覆盖工业控制、消费电子、通信等领域。

一、产品核心定位与品牌背景

松下作为全球电子元器件龙头厂商,其厚膜贴片电阻产品线凭借稳定的工艺控制和市场验证的可靠性,成为行业主流选择。ERJ3EKF2492V定位为工业级通用精密贴片电阻,兼顾成本与性能,可满足大多数中低功率电路的精准信号处理、分压限流需求,尤其适合对温度稳定性和环境适应性有要求的场景。

二、关键技术参数详解

该产品核心参数围绕阻值精度、功率容量、温度特性和环境适应性展开,具体如下:

1. 阻值与精度

标称阻值为24.9kΩ,精度等级为**±1%**,属于精密级范畴。相比±5%普通电阻,阻值偏差更小,可确保电路中信号分压、电流限流的准确性,避免因阻值误差导致的信号失真或功能异常。

2. 功率与电压额定值

  • 额定功率:100mW(0.1W),稳定承载中低功率负载,满足小型电路需求;
  • 最大工作电压:75V,需匹配功率关系($P=U^2/R$),实际工作电压需不超过额定功率对应的阈值(如24.9kΩ下100mW对应约50V),75V为电压上限,保障极端工况电气安全。

3. 温度特性

温度系数(TCR)为**±100ppm/℃**,表示温度每变化1℃,阻值变化百万分之一百。以工作温度范围(-55℃~+155℃)为例,最大温度变化210℃时,阻值最大变化约2.1%,但因精度已达±1%,实际应用中温度波动影响可控制在可接受范围。

4. 环境适应性

工作温度覆盖**-55℃至+155℃**,符合工业级要求,可适应户外设备、高温车间或低温存储场景;厚膜工艺具备良好耐湿性和抗振动能力,应对复杂工况可靠性挑战。

5. 封装规格

采用0603封装(英制,对应公制1608:1.6mm×0.8mm×0.45mm),体积紧凑,适合高密度PCB设计,节省电路板空间,满足小型化设备布局需求。

三、性能优势与可靠性特点

ERJ3EKF2492V的优势源于松下成熟工艺与严格质控:

  1. 工艺稳定性:陶瓷基板印刷电阻浆料→高温烧结→激光微调阻值,确保精度与一致性;耐湿性保护层提升抗腐蚀能力;
  2. 宽温可靠性:宽温范围+低TCR,极端温度下阻值稳定,减少电路参数漂移;
  3. 电气安全性:功率/电压留有合理余量,避免过载损坏;符合RoHS环保标准,满足绿色设计要求;
  4. 批量一致性:标准化生产流程确保批量产品参数高度一致,降低电路调试成本。

四、典型应用场景

结合参数特点,该产品适用于:

  1. 工业控制:PLC输入输出模块、传感器信号调理(温度/压力传感器分压放大)、小型电机驱动限流;
  2. 消费电子:手机/平板电源滤波、音频信号分压、LED背光驱动限流;
  3. 通信设备:基站/路由器信号处理、电源模块电压检测;
  4. 医疗仪器:血糖仪/血压计精密信号采集(需稳定阻值输出);
  5. 汽车电子:车载辅助系统(倒车雷达、氛围灯)低功率控制(部分批次满足AEC-Q200车规)。

五、选型与使用注意事项

  1. 功率匹配:实际功率不超100mW,避免长期过载老化;
  2. 电压限制:工作电压不超75V,需结合负载计算实际电压;
  3. 封装兼容:0603封装需匹配PCB焊盘尺寸,保障焊接可靠性;
  4. 温度环境:避免长期超155℃工作,高温场景需选特殊规格。

ERJ3EKF2492V作为松下厚膜贴片电阻经典型号,以高性价比和可靠性能成为电子设计优选,覆盖多数中低功率精密电路需求。

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