WMSIC Electronic Components

ERJ3EKF9091V

ModelERJ3EKF9091V
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 ERJ3EKF9091V
Type
PANASONIC
Minimum package
5000

Technical parameters

Power
100mW
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF9091V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
9.09kΩ
Electronic Component
1
Electronic Component
BM0257349663
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ERJ3EKF9091V 厚膜贴片电阻产品概述

一、产品基本身份与定位

ERJ3EKF9091V是松下(PANASONIC) 推出的一款厚膜贴片电阻,型号后缀明确了核心参数与封装特性:属于小功率、高精度厚膜电阻,适配0603封装(英制尺寸),主要面向对体积、精度、可靠性有综合要求的电子电路设计。

二、核心电气参数详解

该电阻的关键电气性能直接支撑应用场景,具体参数及意义如下:

  1. 阻值与精度:标称阻值9.09kΩ,精度±1%——此精度在厚膜电阻中属于较高等级,满足信号调理、分压电路等对阻值一致性的要求;
  2. 功率等级:额定功率100mW(即1/10W)——匹配0603封装的典型功率承载能力,适合小信号、低功耗电路;
  3. 工作电压:额定工作电压75V——实际使用中电压不得超过此值,避免击穿损坏;
  4. 温度系数:±100ppm/℃——表示温度每变化1℃,阻值变化量为标称值的百万分之一百;例如温度从25℃升至155℃(ΔT=130℃),阻值变化约为9.09kΩ×100e-6×130≈118Ω,即阻值波动控制在±1.3%以内;
  5. 工作温度范围:-55℃+155℃——覆盖工业级(-40℃+125℃)及部分汽车级(-40℃~+150℃)的温度区间,适应恶劣环境下的长期稳定运行。

三、封装与物理尺寸

ERJ3EKF9091V采用0603封装(英制命名:0.06英寸×0.03英寸),对应公制尺寸为1.6mm×0.8mm,具体物理参数(典型值):

  • 长度:1.6±0.15mm;
  • 宽度:0.8±0.15mm;
  • 厚度:0.4±0.1mm;
  • 焊盘间距:适配标准0603焊盘设计(一般为1.2mm左右)。

0603封装的优势在于体积小、贴装密度高,适合便携式设备、高密度电路板等对空间要求严格的场景。

四、品牌与可靠性优势

作为松下旗下的厚膜电阻产品,ERJ3EKF9091V继承了品牌的制程优势与可靠性:

  1. 厚膜工艺稳定性:采用丝网印刷+高温烧结工艺,电阻膜层均匀性好,阻值一致性高;表面涂覆玻璃釉涂层,具备抗潮、抗腐蚀、抗机械损伤能力;
  2. 质量管控体系:符合RoHS、REACH等环保标准,同时通过松下内部严格的可靠性测试(如高温存储、温度循环、湿度偏压等),长期失效率低;
  3. 宽温适应性:-55℃~+155℃的工作范围,满足工业控制、汽车电子(部分场景)等领域的环境要求。

五、典型应用场景

结合参数特性,ERJ3EKF9091V的主要应用方向包括:

  1. 小信号调理电路:如传感器信号放大的偏置电阻、运算放大器的反馈电阻(精度±1%满足信号精度要求);
  2. 低压小功率电源电路:如5V/3.3V电源的分压取样、LED小电流驱动的限流电阻(100mW功率匹配小电流需求);
  3. 便携式消费电子:如智能手机、蓝牙耳机、智能手表的内部信号电路(0603封装适配小型化设计);
  4. 工业控制与汽车电子:如工业传感器节点、汽车仪表盘的低压信号电路(宽温范围适应环境变化)。

六、选型与使用注意事项

  1. 功率降额:实际使用功率建议不超过额定功率的80%(即80mW),避免长期过热影响寿命;
  2. 电压限制:实际工作电压不得超过75V,同时需结合功率计算(I=P/R),避免电流过大;
  3. 贴装要求:适配标准0603贴装工艺,焊盘设计需符合IPC标准,避免虚焊、假焊;
  4. 温度影响:若电路对阻值精度要求极高(如精密测量),需考虑温度系数带来的阻值变化,必要时进行温度补偿。

综上,ERJ3EKF9091V以高性价比、宽温适应性和稳定可靠性,成为工业级、消费电子及汽车电子领域小信号电路的常用选型。

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