WMSIC Electronic Components

ERJ2RKF8871X

ModelERJ2RKF8871X
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANASONIC ERJ2RKF8871X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF8871X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
8.87kΩ
Electronic Component
1
Electronic Component
BM0257349701
Operating Temperature
55℃~+155℃
Operating Voltage
100V
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.

松下ERJ2RKF8871X精密厚膜贴片电阻产品概述

松下ERJ2RKF8871X是一款针对小型化、高精度电路设计的精密厚膜贴片电阻,属于松下经典ERJ系列贴片电阻产品,广泛应用于消费电子、工业控制、通信等领域的高密度PCB布局场景。

一、产品核心定位与属性

该电阻定位为精密级厚膜贴片电阻,核心满足两大需求:一是小封装(0402)下的高精度性能,二是宽温环境下的稳定可靠性。采用松下成熟的厚膜电阻工艺,兼顾性能与成本优势——区别于薄膜电阻的高成本,同时比普通碳膜电阻具备更高的精度与稳定性,是中小批量精密电路设计的优选方案。

二、关键性能参数解析

ERJ2RKF8871X的核心参数围绕“精密、稳定、小封装”设计,具体解析如下:

  • 阻值与精度:标称阻值8.87kΩ,属于E96精密电阻系列(1%精度对应的标准阻值系列),精度等级±1%,可满足模拟电路的分压、偏置、信号调理等需求;
  • 功率与电压:额定功率100mW(0402封装的常规额定功率),最大工作电压100V,实际应用需遵循“电压×电流≤额定功率”的功率约束;
  • 温度特性:温度系数(TCR)±100ppm/℃,表示温度每变化1℃,阻值变化±0.01%(100ppm=0.01%),在宽温范围内阻值变化可控;
  • 工作温度范围:-55℃~+155℃,覆盖民用与工业级扩展温度需求,适配高温作业场景(如工业烤箱控制、汽车电子周边等)。

三、封装与可靠性设计

3.1 小封装适配高密度布局

采用0402封装(英制:0.04英寸×0.02英寸;公制:1.0mm×0.5mm),是贴片电阻的超小型封装之一,可显著降低PCB占用面积,适合智能手机、智能穿戴、小型传感器模块等空间苛刻的产品。

3.2 厚膜工艺的可靠性优势

松下厚膜电阻采用“陶瓷基底+厚膜电阻浆料+电极”三层结构,具备以下特点:

  • 抗硫化性能:厚膜浆料优化,避免普通碳膜电阻易受硫化气体(如H₂S)腐蚀的问题,适合含硫环境(如工业车间、沿海地区);
  • 机械稳定性:陶瓷基底刚性强,可承受焊接热应力与机械应力,降低虚焊、开裂风险;
  • 标准合规:满足IEC 60115-1、JIS C 5201等国际/国内可靠性标准,可通过跌落、振动测试。

四、典型应用场景

ERJ2RKF8871X的性能匹配多领域小型化精密电路需求,典型应用包括:

  1. 消费电子:智能手机PMIC分压电路、智能手表传感器信号调理、蓝牙耳机射频匹配;
  2. 工业控制:小型PLC输入输出模块、PT100温度传感器放大偏置、工业机器人关节控制;
  3. 通信设备:小型基站射频前端滤波、路由器电源稳压、物联网网关传感器接口;
  4. 医疗仪器:便携式血糖仪信号检测、小型监护仪参数校准(需高精度与宽温稳定)。

五、选型与应用注意事项

为确保电路可靠性,需注意以下要点:

  1. 功率降额:额定功率100mW,实际建议降额至70%以下(≤70mW),避免长期过热导致阻值漂移;
  2. 电压限制:最大100V为瞬间峰值电压,连续工作电压需结合功率计算(电流≤100V/8.87kΩ≈11.27mA);
  3. 温度系数匹配:宽温下阻值变化需计算(例:155℃与25℃温差130℃,变化≈0.115kΩ),确认满足设计精度;
  4. 焊接工艺:回流焊需遵循松下曲线(峰值240℃250℃,时间10s30s),避免温度过高损坏;
  5. 储存条件:未焊接电阻储存在常温(15℃~35℃)、干燥(相对湿度≤60%)环境,避免受潮影响焊接。

总结:松下ERJ2RKF8871X凭借“小封装、高精度、宽温稳定”的核心优势,成为中小规模精密电路设计的实用方案,兼顾性能与成本效益,适配多领域高密度布局需求。

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