WMSIC Electronic Components

ERJ2RKF9092X

ModelERJ2RKF9092X
Package0402
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 ERJ2RKF9092X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF9092X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.025g
Electronic Component
90.9kΩ
Electronic Component
1
Electronic Component
BM0257349711
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

ERJ2RKF9092X 厚膜贴片电阻产品概述

一、产品基本信息

ERJ2RKF9092X是松下(PANASONIC)推出的一款0402封装厚膜贴片电阻,属于其常规功率贴片电阻系列。该型号针对小体积、低功耗、中等精度的电子电路需求设计,兼顾成本优势与性能稳定性,广泛应用于消费电子、工业控制、汽车电子等领域,是高密度PCB设计中的常用元件。

二、核心技术参数详解

该电阻的关键参数直接决定了适用场景,具体如下:

  1. 阻值与精度:标称阻值90.9kΩ,精度±1%——这一精度等级可覆盖多数信号调理、分压、限流电路的需求,无需额外校准即可保证电路功能稳定;
  2. 功率与电压:额定功率100mW,额定工作电压50V。结合欧姆定律计算,最大允许电流约为1.1μA((I=P/R=0.1W/90900Ω≈1.1μA)),实际使用需注意功率降额(建议不超过80mW);
  3. 温度系数(TCR):±100ppm/℃——表示温度每变化1℃,阻值变化±0.01%;温度变化100℃时,阻值偏差约±1%,属于厚膜电阻常规范围,满足宽温环境基本要求;
  4. 工作温度范围:-55℃~+155℃——覆盖工业级与汽车级温度需求,可在极端环境(如低温户外、高温设备内部)稳定工作。

三、设计与工艺特点

  1. 小体积高密度:0402封装尺寸仅1.0mm(长)×0.5mm(宽)×0.4mm(高),大幅节省PCB空间,适合智能手机、可穿戴设备等小型化产品;
  2. 厚膜工艺优势:采用丝网印刷厚膜电阻浆料+烧结成型,电阻层稳定性强,抗机械冲击与化学腐蚀能力优于薄膜电阻,且成本更低;
  3. 焊接兼容性:端电极采用镍-锡镀层设计,兼容回流焊、波峰焊等常规贴片工艺,焊接后无虚焊、脱焊风险,良率高;
  4. 阻值系列完整:松下该系列提供从几十欧到几兆欧的完整阻值覆盖,90.9kΩ为标准阻值,便于电路设计选型。

四、典型应用场景

结合参数特性,ERJ2RKF9092X适用于以下场景:

  1. 消费电子:智能手机触控信号分压电路、平板音频放大辅助电阻、可穿戴设备低功耗传感器接口;
  2. 工业控制:PLC输入输出调理电路、温度传感器信号放大网络(分压校准);
  3. 汽车电子:车载中控小信号电路、胎压监测系统辅助电阻(符合-55℃~+155℃车规温度要求);
  4. 通信设备:基站射频前端偏置电路、小型路由器电源分压网络;
  5. 医疗设备:小型监护仪信号滤波电路、便携式血糖仪电压基准辅助电阻。

五、可靠性与环境适应性

  1. 温度循环测试:通过-55℃~+155℃循环测试(200次以上),阻值变化率符合IEC 61000-4-5标准;
  2. 湿度稳定性:85℃/85%RH高湿环境下放置1000小时,阻值漂移≤0.5%;
  3. 机械可靠性:抗振动(10~2000Hz,1g加速度)与冲击(1500g,0.5ms)测试后,性能无明显下降;
  4. 长期稳定性:额定功率下连续工作1000小时,阻值变化率≤0.2%,适合长期运行设备。

六、选型与使用注意事项

  1. 功率降额:实际工作功率建议不超过额定值的80%(80mW),避免过热导致阻值漂移;
  2. 电压限制:电路工作电压不超过50V额定值,防止绝缘击穿;
  3. 温度匹配:若环境超出-55℃~+155℃,需选择对应宽温/高温型号;
  4. 焊盘设计:PCB焊盘建议尺寸为1.2mm(长)×0.6mm(宽),避免焊接不良;
  5. 精度替代:需更高精度(±0.1%)时,可选择松下薄膜电阻系列(如ERJ-3R),但成本更高。

该型号凭借小体积、宽温适应性与成本优势,成为多数电子设备中替代更高成本精密电阻的理想选择,适合对精度要求不苛刻但需稳定性能的电路设计。

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