WMSIC Electronic Components

ERJ2RKF3163X

ModelERJ2RKF3163X
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+

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Technical data

Product details

19 specifications

Core information

Product name
PANASONIC ERJ2RKF3163X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF3163X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
316kΩ
Electronic Component
1
Electronic Component
BM0257349742
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.

ERJ2RKF3163X 松下精密厚膜贴片电阻产品概述

ERJ2RKF3163X是松下电子推出的精密级厚膜贴片电阻,隶属于经典ERJ系列,针对低功耗、高密度集成场景优化设计。该产品以0402超小封装为核心,兼顾精准阻值控制、宽温稳定性与成本性价比,是消费电子、工业控制、汽车电子等领域的实用型元器件选择。

一、产品核心身份与定位

作为松下厚膜电阻产品线中的精密子系列,ERJ2RKF3163X区别于普通±5%精度的通用型厚膜电阻,主打“小封装+高精准”的平衡特性:一方面采用0402超小尺寸适配高密度PCB布局,另一方面通过优化厚膜浆料配方与烧结工艺实现±1%的阻值精度,同时保持厚膜电阻特有的抗冲击、耐潮湿优势,避免了薄膜电阻的高成本,适合批量应用于对精度有一定要求但无需极端稳定性的场景。

二、关键电气参数深度解析

该电阻的核心电气参数围绕“低功耗、精准度、稳定性”三大维度设计,具体如下:

  • 阻值与精度:标称阻值316kΩ(阻值代码“3163”对应316×10³Ω),精度±1%——满足信号调理、分压电路、滤波网络等对阻值偏差敏感的需求,例如可替代通用电阻用于传感器信号放大的反馈回路,避免输出误差累积;
  • 功率与电压:额定功率100mW(0402封装的典型功率等级),工作电压50V——适配多数低压电路(如12V/24V工业系统、5V/3.3V消费电子),实际应用中需注意功率降额(25℃环境下可满载,60℃时需降额至70%(70mW),100℃时降额至40%(40mW),避免过热导致阻值漂移;
  • 温度系数(TCR):±100ppm/℃——表示每变化1℃,阻值变化0.01%;以25℃为基准,若环境温度升至125℃(变化100℃),阻值最大漂移1%,适合环境温度波动≤50℃的场景(如室内设备、车载座舱内电路),若需更高稳定性可搭配温度补偿电路。

三、物理与封装特性

ERJ2RKF3163X采用0402英制贴片封装(公制1005),物理尺寸与焊接特性如下:

  • 尺寸参数:长度1.0±0.1mm,宽度0.5±0.1mm,厚度0.35±0.1mm,端电极长度0.2±0.1mm——体积仅为0805封装的1/4左右,可大幅节省PCB空间,适配智能手机主板、可穿戴设备(如智能手表)等紧凑设计;
  • 工艺与材料:基于厚膜陶瓷工艺(96%氧化铝陶瓷基板+钌基电阻浆料),烧结后形成致密电阻层,兼具耐温性与抗机械应力能力;端电极采用三层结构(镍底层+铜中间层+锡铅表层,无铅版本可选),焊接可靠性符合IPC-J-STD-020标准;
  • 重量:约5mg——轻量化设计适合对重量敏感的设备(如无人机、便携式医疗仪器)。

四、环境适应性表现

该电阻的宽温与耐环境性能满足多场景需求:

  • 工作温度范围:-55℃+155℃——覆盖工业级(-40℃+85℃)与部分汽车级(-40℃~+125℃)场景,可用于户外监控设备(低温环境)、汽车发动机舱周边辅助电路(高温环境);
  • 耐湿与抗腐蚀:厚膜电阻的陶瓷基板与浆料抗湿性优于碳膜电阻,可在湿度≤85%RH的环境下长期工作(存储期内湿度≤60%RH);
  • 抗冲击与振动:0402封装的焊接强度满足IPC-9701标准,可承受10g(10-2000Hz)的振动与1500g(0.5ms)的冲击,适合移动设备(如车载导航、手持终端);
  • 长期稳定性:松下测试数据显示,在125℃、额定功率负载下工作1000小时,阻值漂移≤0.5%,无开路/短路失效,可靠性符合工业级要求。

五、典型应用场景

ERJ2RKF3163X的参数特性使其适配以下主流场景:

  1. 消费电子:智能手机摄像头模组的滤波电阻、触控面板的分压校准电路、蓝牙耳机的电源电压检测;
  2. 工业控制:小型PLC的输入模块信号调理、温度传感器(如PT100)的信号放大反馈电阻、小型直流电机的限流辅助电路;
  3. 汽车电子:车载信息娱乐系统的按键面板分压电阻、胎压监测模块的信号滤波、低功耗传感器(如加速度计)的偏置电路;
  4. 医疗电子:便携式血糖仪的信号放大网络、小型监护仪的电源滤波电阻、家用呼吸机的压力传感器调理电路。

六、选型与使用注意事项

实际应用中需注意以下细节,避免性能衰减:

  1. 功率降额:环境温度高于25℃时,需根据降额曲线调整工作功率(参考松下官方数据:60℃降额至70%,85℃降额至50%,100℃降额至40%);
  2. 焊接工艺:回流焊峰值温度240-260℃(时间≤10秒),波峰焊温度230-245℃(时间≤3秒),避免过温导致端电极脱落;
  3. 存储与运输:未焊接电阻需存储在温度10-30℃、湿度40-60%RH的环境,存储期12个月;运输过程避免剧烈振动与潮湿;
  4. 静电防护:ESD等级为2kV(人体模型),焊接时需接地,避免静电损坏电阻层。

总结:ERJ2RKF3163X以“小封装、高精准、宽温稳定”为核心优势,兼顾成本与性能,是低功耗精密电路的实用选择,尤其适合高密度集成与环境波动场景。

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