WMSIC Electronic Components

ERJ2RKF1201X

ModelERJ2RKF1201X
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 ERJ2RKF1201X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF1201X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
1.2kΩ
Electronic Component
1
Electronic Component
BM0257349553
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.

ERJ2RKF1201X 贴片厚膜电阻产品概述

一、产品定位与核心属性

ERJ2RKF1201X是松下(PANASONIC)推出的0402封装通用厚膜贴片电阻,属于其ERJ系列电阻的经典型号。该产品针对小型化、低功耗电子设备设计,核心优势在于1.2kΩ阻值下兼顾±1%精度、100mW功率与宽温适应性,可满足多数工业级、消费级电路的阻抗匹配、分压采样、滤波等基础需求,是高密度PCB布局的优选元件。

二、关键性能参数解析

该电阻的核心参数经过优化,平衡了性能与成本,具体解析如下:

  1. 阻值与精度:额定阻值1.2kΩ,精度±1%,属于工业级通用精度范畴——既避免了高精度电阻的成本冗余,又能满足90%以上常规电路对阻值偏差的要求(如电源管理模块的电压采样、音频电路的阻抗匹配)。
  2. 功率与电压:额定功率100mW(0.1W),是0402封装贴片电阻的典型值;最大工作电压100V(直流/交流峰值),可覆盖常见低压电路(≤100V)的电压范围,避免过压击穿风险。
  3. 温度系数(TCR):±100ppm/℃,表示温度每变化1℃,阻值变化±0.01%。以工作温度155℃为例,相比25℃的阻值偏差约1.3%,叠加±1%精度后总偏差≤2.3%,宽温环境下仍保持稳定。
  4. 工作温度范围:-55℃~+155℃,符合汽车电子、户外工业设备的宽温要求(如汽车发动机舱的高温、北方户外设备的低温)。

三、封装与工艺特点

  1. 封装尺寸:0402(英制代码),对应公制尺寸约1.0mm×0.5mm,是目前小型化电子设备的主流封装之一,可显著提升PCB的元件密度(如智能手机、智能穿戴设备)。
  2. 厚膜工艺:采用丝网印刷+高温烧结工艺,在氧化铝陶瓷基板上形成电阻膜,相比薄膜电阻成本更低,相比线绕电阻体积更小,兼顾性能与经济性。
  3. 品牌可靠性:松下作为全球知名电子元件厂商,其厚膜电阻生产工艺成熟,批次间参数一致性好,焊接可靠性高,长期稳定性经市场验证。

四、典型应用场景

结合参数特点,该电阻广泛应用于以下领域:

  • 消费电子:智能手机/平板的电源管理模块(电压分压采样)、音频接口电路(阻抗匹配);
  • 汽车电子:车载信息娱乐系统的信号处理电路(宽温适应性)、传感器接口电路(低功耗);
  • 工业控制:小型PLC的I/O模块、传感器信号调理电路;
  • 智能穿戴:智能手表/手环的心率传感器电路、低功耗蓝牙模块;
  • 家电产品:智能插座、加湿器的控制电路、电源滤波电路。

五、可靠性与环境适应性

  1. 宽温稳定性:-55℃~+155℃的工作范围,可在极端环境下持续工作,无需额外散热或温度补偿;
  2. 耐湿抗振:陶瓷基板与封装材料防潮性好,贴片焊接工艺可靠,可承受汽车行驶中的振动、户外环境的湿度变化;
  3. 长期寿命:在额定条件下工作寿命超过10000小时,批次一致性好,适合批量生产的稳定性要求。

六、选型与使用注意事项

  1. 选型匹配:若需更高精度(±0.1%),可替换为松下薄膜电阻系列;若需更大功率(200mW),可选择0603封装的同阻值电阻;
  2. 使用限制:实际电流需控制在额定功率内(I=√(P/R)≈9.1mA),避免过流;工作电压不得超过100V峰值;
  3. 焊接要求:需采用回流焊工艺,焊接峰值温度260±5℃,时间≤30秒,避免焊接不良导致的性能下降。

ERJ2RKF1201X凭借平衡的性能参数、可靠的工艺与宽温适应性,成为众多小型化电子设备的核心基础元件,是松下厚膜电阻系列的高性价比代表。

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