WMSIC Electronic Components

ERJ2RKF3243X

ModelERJ2RKF3243X
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 ERJ2RKF3243X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF3243X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
324kΩ
Electronic Component
1
Electronic Component
BM0257349569
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.

ERJ2RKF3243X 贴片厚膜电阻产品概述

一、产品定位与核心参数

ERJ2RKF3243X是松下(PANASONIC)推出的小型化厚膜贴片电阻,聚焦对体积、精度和环境适应性有明确要求的电子设计,属于工业级通用型电阻。其核心参数完全匹配0402封装的性能边界,具体如下:

  • 阻值:324kΩ(标识代码“3243”,即324×10³Ω)
  • 精度:±1%(满足多数电路的分压、偏置一致性需求)
  • 额定功率:100mW(0402封装下的常规功率等级)
  • 额定工作电压:50V(电压上限,实际功耗需同时满足功率限制)
  • 温度系数(TCR):±100ppm/℃(温度波动对阻值的影响可控)
  • 工作温度范围:-55℃~+155℃(覆盖工业高温与低温环境)

二、封装与物理特性

该电阻采用0402封装(英制代码,对应公制1.0mm×0.5mm),物理尺寸符合行业标准:

  • 长度:1.0±0.2mm
  • 宽度:0.5±0.2mm
  • 厚度:0.4±0.1mm

封装基片选用氧化铝陶瓷(Al₂O₃),兼具导热性与机械强度;终端电极采用银钯(Ag-Pd)合金+镍(Ni)镀层,适配无铅回流焊、波峰焊工艺,焊接后无开路/短路风险,且符合RoHS 2.0、REACH等环保标准(无铅无卤)。

三、电气性能详解

1. 阻值精度与长期稳定性

±1%的精度确保电路中分压、偏置等功能的一致性,避免信号失真;长期工作下阻值漂移极小——155℃高温存储1000小时后,阻值变化≤±0.5%,满足批量生产的一致性要求。

2. 功率与电压兼容性

100mW额定功率支持连续负载,实际工作需同时满足两个限制:

  • 功耗≤100mW(例:324kΩ电阻在32.4V电压下功耗为3.24mW,远低于额定值);
  • 电压≤50V(电压上限,避免绝缘击穿)。

3. 温度系数表现

±100ppm/℃的TCR意味着温度每变化1℃,阻值变化±0.01%。以工作温度范围为例:从25℃(常温)到155℃(高温),阻值最大变化约±1.3%,仍在精度允许范围内,适合温度波动较大的场景。

四、环境适应性

ERJ2RKF3243X具备较强的环境耐受能力,通过多项可靠性测试:

  • 宽温适应性:-55℃~+155℃覆盖工业级与汽车电子高温场景;
  • 耐湿性能:85℃/85%RH高湿环境下工作1000小时,阻值变化≤±0.3%;
  • 抗振动/冲击:通过MIL-STD-202振动测试(10Hz~2000Hz,10g加速度)和冲击测试(100g,1ms持续时间),适合移动设备或工业振动环境。

五、典型应用场景

基于体积小、精度高、宽温适应性的特点,该电阻主要应用于:

  1. 消费电子:智能手机、平板电脑的射频滤波、音频分压电路;
  2. 工业控制:PLC、温度/压力传感器的偏置电阻,小型电机驱动电路;
  3. 汽车电子:车载胎压监测、座椅传感器的信号处理电路;
  4. 通信设备:小型基站、路由器的数字电路偏置、射频前端滤波;
  5. 医疗设备:便携式血糖仪、血压计的信号放大/分压电路(需稳定精度)。

六、品牌与可靠性保障

松下作为全球电子元器件龙头,ERJ2RKF系列电阻经过严苛验证:

  • 焊接可靠性:回流焊后阻值变化≤±0.2%,无虚焊问题;
  • 长期可靠性:符合JIS C 5102标准,批量产品一致性达99.9%以上;
  • 供货保障:全球分销网络完善,批量供货稳定,适合大规模生产需求。

该产品以高性价比平衡了体积、精度与环境适应性,是小型化电子设计的可靠选择。

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