WMSIC Electronic Components

ERJ2RKF5231X

ModelERJ2RKF5231X
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 ERJ2RKF5231X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF5231X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
5.23kΩ
Electronic Component
1
Electronic Component
BM0257349556
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

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

ERJ2RKF5231X 厚膜贴片电阻产品概述

ERJ2RKF5231X是松下(PANASONIC)推出的一款小型化厚膜贴片电阻,针对高密度、低功耗电路设计,具备中等精度、宽温适应性等特点,可满足多领域电子设备的信号调理、分压限流等基础应用需求。

一、产品基本定位与身份标识

该型号属于松下常规精度厚膜贴片电阻系列,核心定位为小功率、中等精度的通用型贴片电阻,适配对体积敏感、功耗要求低但需稳定阻值表现的电路场景。作为厚膜电阻,其采用丝网印刷厚膜工艺制造,兼顾成本与性能,是电子设计中常用的基础元器件之一。

二、核心电气性能参数

1. 阻值与精度

标称阻值为5.23kΩ,精度等级为**±1%**,即实际阻值范围在5.1777kΩ~5.2823kΩ之间,能满足大多数需要中等阻值精度的应用(如模拟信号放大的偏置电路、电压分压网络等),相比±5%精度电阻,可减少电路参数偏差带来的影响。

2. 功率容量

额定功率为100mW(0.1W),适用于低功耗电路(如便携设备的传感器信号链、小型MCU的辅助电路等)。需注意:电路工作时,电阻实际功耗不得超过100mW(计算方式:(P=I^2R=V^2/R)),避免因过热导致阻值漂移或损坏。

3. 温度系数(TCR)

温度系数为**±100ppm/℃**,表示电阻阻值随温度变化的速率:每升高或降低1℃,阻值变化约为标称值的百万分之一百。例如,当环境温度从25℃(常温)升至155℃(工作上限),温度变化130℃,阻值变化量约为(5.23kΩ×130×100ppm=679.9Ω),即此时阻值范围扩展至(5.1777kΩ±679.9Ω),但仍在电路可接受的偏差范围内,保证宽温下的性能稳定性。

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,公制尺寸:1.0mm×0.5mm),是贴片电阻中体积较小的封装类型之一,适配高密度PCB设计(如智能手机主板、智能穿戴设备模块、小型传感器节点等)。该封装支持常规贴片焊接工艺(回流焊、波峰焊),焊接兼容性好,可实现自动化批量生产,降低人工成本。

四、环境适应性表现

工作温度范围为**-55℃~+155℃**,符合工业级宽温要求,能适应极端环境:

  • 低温场景:如北方户外传感器、低温工业控制模块;
  • 高温场景:如汽车仪表内部(部分高温区域)、工业烤箱内的辅助电路。 厚膜电阻的工艺特性使其在宽温下具有较好的阻值稳定性,同时抗潮湿、抗机械应力能力优于部分薄膜电阻,适合复杂环境下的长期可靠运行。

五、典型应用场景

  1. 便携电子设备:智能手机、智能手表、蓝牙耳机等的信号调理电路(如麦克风偏置、触摸传感器分压);
  2. 传感器信号链:压力传感器、温度传感器、气体传感器的前置放大偏置、电压分压网络;
  3. 工业控制模块:小型PLC的IO接口电路、工业传感器节点的辅助电路;
  4. 汽车电子(低功耗部分):车内座椅传感器、氛围灯控制电路等低功率场景。

六、品牌与品质保障

作为松下旗下产品,ERJ2RKF5231X具备成熟的生产工艺与严格的品质管控:

  • 阻值一致性好,批量生产不良率低;
  • 符合RoHS、REACH等环保标准,满足全球市场合规要求;
  • 厚膜工艺兼顾成本与性能,是电子设计中性价比高的基础选择。

该电阻通过了松下内部及行业标准测试,可长期稳定运行于各类低功耗、中等精度的电子电路中,是设计人员优化电路体积与性能的可靠选择。

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