WMSIC Electronic Components

ERJ2RKF3001X

ModelERJ2RKF3001X
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 ERJ2RKF3001X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF3001X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
3kΩ
Electronic Component
1
Electronic Component
BM0264481545
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.

ERJ2RKF3001X 厚膜贴片电阻产品概述

ERJ2RKF3001X是松下(PANASONIC)推出的一款0402封装厚膜贴片电阻,针对高密度电路设计与宽温环境应用优化,核心参数匹配3kΩ阻值、±1%精度、100mW额定功率,广泛适用于消费电子、汽车电子及工业控制等领域。

一、基本属性与型号解析

该型号属于松下ERJ2系列厚膜贴片电阻,型号编码各部分含义明确:

  • ERJ2:代表0402封装(英制0.04×0.02英寸/公制1005)的厚膜电阻系列;
  • RKF:标识精度等级(±1%)与温度系数(±100ppm/℃)的组合参数;
  • 3001:阻值编码(前三位为有效数字,第四位为10的幂次),即300×10¹=3kΩ;
  • X:后缀通常表示无铅环保设计,符合RoHS指令要求。

产品本质为厚膜贴片电阻,采用丝网印刷+高温烧结工艺制造,平衡了成本与性能,适合批量应用场景。

二、核心技术参数详解

ERJ2RKF3001X的核心参数针对实际应用场景做了精准配置:

  1. 阻值与精度:3kΩ±1%——1%精度在厚膜电阻中属于中高精度等级,可满足电路中信号匹配、分压/分流等场景的稳定需求,无需额外校准即可实现可靠的电气性能;
  2. 额定功率:100mW(25℃环境下)——匹配0402封装的功率上限,适合小电流(约5.77mA,按P=I²R计算)电路设计,需注意高温环境下的功率降额(如155℃时功率需降至约50%);
  3. 温度系数(TCR):±100ppm/℃——表示温度每变化1℃,阻值变化0.01%。以典型工作温度差(如25℃→155℃)计算,阻值最大变化量为130℃×0.01%=1.3%,结合±1%精度,总偏差控制在±2.3%以内,满足宽温环境下的稳定性要求;
  4. 工作温度范围:-55℃+155℃——覆盖工业级与汽车级的温度需求(汽车电子典型工作温度为-40℃125℃,部分场景可达150℃),可应对极端环境下的长期可靠运行。

三、封装与功率特性

3.1 0402小封装优势

0402封装体积仅为1.0mm×0.5mm,是贴片电阻中尺寸较小的规格之一,可显著降低PCB布局面积,适合高密度电路设计(如智能手机主板、可穿戴设备),有效提升产品集成度。

3.2 功率降额设计参考

额定功率100mW是25℃环境下的连续工作值,高温环境需遵循降额原则:

  • 温度>70℃时,功率降额系数随温度升高线性下降;
  • 155℃时,最大允许功率约为50mW,需在电路设计中预留功率裕量,避免因过热导致阻值漂移或失效。

四、温度稳定性与环境适应性

厚膜电阻的烧结工艺使其具备优于碳膜电阻的温度稳定性,ERJ2RKF3001X的±100ppm/℃ TCR在同类产品中处于中等偏上水平,可满足:

  • 汽车电子中的传感器信号调理(如胎压监测、温度传感器);
  • 工业控制中的PLC模块(长期暴露于高低温循环环境);
  • 消费电子中的电源滤波(避免温度变化导致的信号失真)。

此外,产品通过了松下的可靠性测试(如高温存储1000h、温度循环-55℃~155℃ 1000次),可保证长期使用中的阻值稳定性与电气可靠性。

五、典型应用场景

ERJ2RKF3001X的参数特性使其适用于多领域的中低功率电路:

  1. 消费电子:智能手机、平板电脑的电源管理单元(PMU)、音频信号滤波、触控传感器接口;
  2. 汽车电子:车载仪表盘背光控制、胎压监测系统(TPMS)传感器、车身控制模块(BCM)信号调理;
  3. 工业控制:PLC输入/输出模块、温度传感器接口、小型电机驱动电路;
  4. 可穿戴设备:智能手表心率传感器、手环运动数据采集电路;
  5. 通信设备:小型基站射频前端辅助电路、路由器电源滤波。

六、品牌与品质保障

松下作为全球知名电子元器件厂商,ERJ2RKF3001X具备以下品质优势:

  • 成熟工艺:采用高精度丝网印刷与高温烧结技术,阻值一致性好(批量生产中精度偏差控制在规格范围内);
  • 环保合规:无铅设计符合RoHS、REACH等环保指令,满足全球市场准入要求;
  • 可靠性认证:部分批次通过AEC-Q200汽车电子可靠性认证,适合汽车级应用;
  • 批量供应:产能稳定,可满足大规模生产需求,交付周期可控。

ERJ2RKF3001X通过平衡小体积、中高精度、宽温适应性与成本,成为高密度电路设计中的常用电阻选型,适用于多数需要稳定电气性能的中低功率场景。

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