WMSIC Electronic Components

ERJ2RKF2401X

ModelERJ2RKF2401X
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 ERJ2RKF2401X
Type
0402
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF2401X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
2.4kΩ
Electronic Component
1
Electronic Component
BM0257349734
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.

ERJ2RKF2401X 厚膜贴片电阻产品概述

ERJ2RKF2401X是松下(PANASONIC)推出的工业级厚膜贴片电阻,针对小体积、低功耗、宽温区场景设计,是电子电路中分压、限流、反馈等功能的通用型核心元件。其型号编码遵循松下厚膜电阻系列规范:「ERJ」为厚膜电阻系列标识,「2RKF」对应封装/功率/精度子系列,「2401」为阻值编码(240×10¹=2.4kΩ),「X」为后缀标识(代表标准端电极与性能等级)。

一、核心参数与性能解析

该电阻的关键参数直接匹配多数电子系统的基础需求,性能指标覆盖通用到工业场景:

  1. 阻值与精度:额定阻值2.4kΩ,精度±1%,满足90%以上电子电路对阻值一致性的要求(如音频放大器反馈回路、电源分压网络);
  2. 功率与功耗:额定功率100mW(0.1W),是0402封装的典型高功率等级(行业0402封装常见功率为1/16W=62.5mW),支持最大工作电流约6.45mA(I=√(P/R));
  3. 温度系数(TCR):±100ppm/℃,表示温度每变化1℃,阻值漂移±0.01%。在-55℃~+155℃宽温区下,阻值最大变化不超过±1.3%(130℃温差×100ppm/℃),满足工业控制、车载等环境温度波动场景;
  4. 工作温区:-55℃~+155℃,符合工业级温度标准(I级),可替代部分军用级元件的通用场景应用。

二、封装与物理特性

ERJ2RKF2401X采用0402封装(英制:0.04英寸×0.02英寸;公制:1.0mm×0.5mm×0.35mm),是目前贴片电阻中体积最小的封装之一,具备以下物理优势:

  • 高密度PCB适配:小体积可大幅提升PCB布局密度,适合智能手机、可穿戴设备等小型化产品;
  • 端电极可靠性:采用松下专利的多层端电极结构(镍阻挡层+锡镀层),焊接时润湿性能优异,减少虚焊风险,且抗焊接应力能力强(符合IPC-A-610 Class 2/3标准);
  • 轻量化设计:单个电阻重量约0.005g,对无人机、智能手表等轻量化设备无额外负载压力。

三、适用场景与应用优势

该电阻的参数特性使其广泛覆盖多领域应用,核心优势集中在「小体积+宽温区+高可靠性」:

  1. 消费电子:智能手机/平板电脑的电源管理IC(PMIC)分压电阻、音频解码模块反馈电阻;
  2. 工业控制:小型PLC输入/输出模块限流电阻、温度传感器信号调理电路;
  3. 车载电子:汽车仪表盘背光控制电路、毫米波雷达信号处理模块分压电阻(符合ISO 16750车载环境标准);
  4. 可穿戴设备:智能手表心率传感器信号放大电路、低功耗蓝牙模块限流电阻。

优势补充:松下采用钌系电阻浆料的厚膜工艺,批量生产中阻值离散度≤0.3%,耐潮湿、耐盐雾性能符合JIS C 5102标准,长期使用无明显阻值漂移。

四、可靠性与环境适应性

ERJ2RKF2401X经过松下严格的可靠性测试,满足工业级产品的长期稳定性要求:

  1. 焊接可靠性:回流焊/波峰焊兼容性好,推荐焊接温度曲线(峰值240250℃,时间1030秒)下无开裂、阻值变化;
  2. 耐环境测试:
    • 高温存储:155℃下存储1000小时,阻值漂移≤0.5%;
    • 温度循环:-55℃~+155℃循环1000次,阻值变化≤0.3%;
    • 盐雾测试:5% NaCl溶液喷雾96小时,端电极无腐蚀,阻值稳定;
  3. 功率降额:环境温度超过25℃时需降额使用(如155℃时功率降额至50%,即实际可用功率50mW),确保长期可靠性。

五、选型与应用注意事项

  1. 功率降额:实际应用中需根据环境温度计算可用功率(如40℃时可用功率约80mW),避免过载;
  2. 阻值匹配:若需更高精度(±0.1%),可选择松下ERJ系列高精度子系列(如ERJ-3RKF);若需更大功率,0402封装无更高选项,需切换至0603封装(1/10W);
  3. 焊接工艺:禁止手工烙铁直接焊接(易导致端电极脱落),需采用回流焊或波峰焊;
  4. 存储条件:未开封产品存储于1535℃、4060%湿度环境,开封后12个月内使用完毕,避免端电极氧化。

ERJ2RKF2401X凭借松下的工艺优势与参数匹配性,成为小体积、宽温区电子系统的优选电阻元件,可满足从消费电子到工业控制的多场景需求。

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