WMSIC Electronic Components

ERJ2RKF4752X

ModelERJ2RKF4752X
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 ERJ2RKF4752X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF4752X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
47.5kΩ
Electronic Component
1
Electronic Component
BM0257349565
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.

松下ERJ2RKF4752X厚膜贴片电阻产品概述

松下ERJ2RKF4752X是一款针对小型化、高精度电子电路设计的厚膜贴片电阻,属于松下经典ERJ系列的通用型产品,凭借紧凑封装、稳定电气性能及宽温适应性,广泛适配消费电子、工业控制等多场景需求。

一、产品核心身份与定位

该电阻为厚膜贴片电阻,采用丝网印刷+高温烧结工艺制备,兼顾成本优势与性能稳定性;属于小功率(100mW)、高精度(±1%)范畴,主要面向对PCB空间敏感、需控制信号误差的电路设计,是替代常规±5%精度电阻的高性价比选择。

二、关键技术参数深度解析

1. 阻值与精度

标称阻值为47.5kΩ,精度等级±1%,即实际阻值范围在47.025kΩ~47.975kΩ之间。相比市场常见的±5%精度电阻,其阻值误差缩小4倍,可有效降低模拟电路(如传感器信号放大、滤波)的信号失真风险,满足中高端电子设备的信号精度要求。

2. 功率与电压

  • 额定功率:100mW(0.1W),支持小信号电路的功率负载(如单片机I/O上拉电阻、运算放大器偏置电阻);
  • 最大工作电压:50V,若电路中电压超过此值,可能导致电阻击穿或性能衰减,需严格匹配电路电压范围。

3. 温度特性

温度系数(TCR)为**±100ppm/℃**,表示温度每变化1℃,阻值变化0.01%。结合工作温度范围(-55℃~+155℃)计算,极端温度下阻值最大变化约±2.1%(210℃温差×100ppm),可满足工业级设备(如户外传感器模块)的宽温工作需求。

4. 工作环境范围

  • 工作温度:-55℃~+155℃(覆盖低温存储与高温工作场景);
  • 存储温度:-65℃~+155℃(松下ERJ系列常规参数,保障运输存储稳定性)。

三、封装与物理特性

采用0402封装(英制尺寸:0.04英寸×0.02英寸,公制1005:1.0mm×0.5mm),是当前贴片电阻中体积最小的封装之一,适配高密度PCB设计(如智能手机主板、可穿戴设备)。厚膜工艺使电阻层与陶瓷基底结合紧密,具备抗磨损、抗环境侵蚀能力,长期使用不易出现阻值漂移。

四、典型应用场景

1. 消费电子领域

  • 智能手机/平板电脑:加速度计、陀螺仪的信号调理电阻(需高精度控制偏置电压);
  • 可穿戴设备:智能手环的心率传感器信号放大电路(小功率+紧凑封装适配小体积需求)。

2. 工业控制领域

  • 小型PLC:模拟量输入模块的分压电阻(±1%精度保障信号采集准确性);
  • 传感器模块:温度传感器、压力传感器的信号滤波电阻(宽温范围适配工业现场环境)。

3. 通信设备领域

  • 小型基站:射频信号衰减电阻(0402封装支持高密度集成);
  • 路由器:电源模块的分压电阻(100mW功率满足小功率电源需求)。

五、可靠性与使用注意事项

1. 可靠性优势

  • 厚膜工艺:阻值长期稳定性佳,典型漂移量<0.1%/1000小时;
  • 抗振动性能:0402封装结构紧凑,可承受10G~20G的振动(符合IEC 60068-2-6标准),适配移动设备或工业振动环境。

2. 使用注意事项

  • 功率降额:建议实际功率不超过70mW(降额70%),避免高温下功率衰减;
  • 焊接要求:回流焊峰值温度≤260℃,焊接时间≤10秒,防止热应力损坏电阻;
  • 静电防护:虽对静电敏感度低于薄膜电阻,但装配过程中需佩戴静电手环,避免ESD损伤。

该电阻凭借均衡的性能与成本表现,成为电子设计中“小体积+高精度”需求的主流选择,松下的品牌可靠性进一步保障了产品在量产中的一致性。

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