WMSIC Electronic Components

ERJ3EKF3243V

ModelERJ3EKF3243V
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 ERJ3EKF3243V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF3243V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
324kΩ
Electronic Component
1
Electronic Component
BM0264220948
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.

ERJ3EKF3243V 厚膜片式电阻器产品概述

ERJ3EKF3243V是松下(PANASONIC) 推出的一款小型表面贴装厚膜电阻器,属于其ERJ系列核心产品。凭借紧凑封装、稳定电气性能及宽温适应性,该电阻器广泛适配消费电子、工业控制、通信等领域的低功率电路需求,是批量应用的优质选型。

一、产品基本属性与品牌背书

该电阻器采用厚膜工艺制造(陶瓷基片印刷电阻浆料烧结而成),型号编码遵循行业规则:

  • "ERJ":松下电阻系列标识;
  • "3":额定功率100mW;
  • "E":精度±1%;
  • "KF":温度系数及封装特性;
  • "3243":阻值324kΩ(前三位有效数字+倍率10³);
  • "V":0603封装补充代码。

松下作为全球电子元器件龙头,其厚膜电阻器以工艺一致性、长期可靠性著称,ERJ3EKF3243V延续了品牌对参数稳定性的严格把控,适合量产场景。

二、核心电气性能参数详解

1. 阻值与精度

  • 标称阻值:324kΩ(324×10³Ω);
  • 精度等级:±1%(工业级常用精度,满足分压、限流等电路的匹配需求,无需额外校准)。

2. 功率与电压额定值

  • 额定功率:100mW(0.1W),适配低电流电路(工作电流≈0.55mA,I=√(P/R));
  • 最大工作电压:75V(连续工作电压上限,瞬态电压需参考松下 datasheet 脉冲参数)。

3. 温度系数(TCR)

  • 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±0.01%;若温变150℃(-55℃→+95℃),阻值最大变化±1.5%,适用于温变较小的场景。

三、封装与物理特性

采用0603封装(英制代码,公制1608尺寸:长1.6mm±0.15mm,宽0.8mm±0.15mm,厚度≤0.45mm),具备以下优势:

  • 体积紧凑:节省PCB空间,适配智能手机、智能穿戴等小型化设备;
  • 表面贴装:兼容自动化SMT生产线,贴装效率高;
  • 陶瓷基片:抗机械应力、热冲击能力强,长期阻值漂移小。

四、典型应用场景

因体积小、功率适配性好,广泛应用于:

  1. 消费电子:手机、平板的音频滤波、传感器接口电路;
  2. 工业控制:小型PLC、传感器模块的分压/限流电路;
  3. 通信设备:路由器、交换机的电源滤波、信号匹配电路;
  4. 汽车电子:倒车雷达、车内照明的低功率控制电路(宽温范围覆盖部分场景);
  5. 医疗设备:小型监护仪的低功耗电路(需确认医疗级认证)。

五、可靠性与环境适应性

1. 温湿度范围

  • 工作温度:-55℃~+155℃(宽温,满足工业级、汽车级部分场景);
  • 存储温度:同工作温度,无需特殊存储条件。

2. 长期稳定性

阻值长期漂移率≤0.1%/1000小时(+125℃),适合对参数一致性要求高的设备。

3. 抗干扰能力

表面贴装设计减少寄生参数,具备一定抗电磁干扰(EMI)能力,适配高频电路辅助应用。

六、选型与使用注意事项

  1. 功率降额:实际功率建议≤80mW(额定值80%),避免过热损坏;
  2. 温系补偿:户外场景需计算温变阻值变化,确认满足电路要求;
  3. 焊接要求:回流焊温度≤260℃,符合IPC-A-610标准;
  4. 防潮存储:开封后12个月内使用,存储环境1535℃、湿度4060%RH;
  5. 静电防护:操作时佩戴防静电手环,避免静电损坏。

ERJ3EKF3243V在性能、可靠性与成本间实现平衡,是小型低功率电路的优质选型。

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