WMSIC Electronic Components

ERJ2RKF1801X

ModelERJ2RKF1801X
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 ERJ2RKF1801X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ2RKF1801X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
1.8kΩ
Electronic Component
1
Electronic Component
BM0257349692
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.

松下ERJ2RKF1801X厚膜片式电阻器产品概述

松下ERJ2RKF1801X是一款专为高密度电子设计打造的0402封装厚膜片式电阻,凭借稳定的电气性能、宽温适应性及紧凑尺寸,广泛应用于消费电子、工业控制、汽车电子等领域。以下从核心参数、结构特性、性能优势等维度展开详细概述。

一、产品基本定位与核心参数

ERJ2RKF1801X属于松下ERJ系列厚膜片式电阻,聚焦小尺寸、高可靠性需求设计,核心参数明确:

  • 阻值:1.8kΩ(标识代码“1801”,对应180×10¹=1800Ω);
  • 精度:±1%(满足多数中精度电路设计需求,如信号调理、分压电路);
  • 功率等级:100mW(0402封装下常规功率,可稳定承载低功耗电路负载);
  • 温度系数(TCR):±100ppm/℃(宽温范围内阻值漂移小,例如125℃时阻值变化仅约22.5Ω,未超出精度范围);
  • 工作温度范围:-55℃~+155℃(覆盖极端环境应用场景,如汽车发动机舱、工业高温车间)。

二、封装与结构特性

2.1 封装尺寸

采用0402英制封装(对应公制1005,即1.0mm×0.5mm),是小型化电子设备的核心选择,可显著提升PCB布线密度,适配手机、智能穿戴等便携产品。

2.2 厚膜工艺结构

产品基于厚膜丝网印刷工艺制造,核心结构包括:

  • 陶瓷基底:高纯度氧化铝陶瓷,提供稳定的机械支撑与热传导;
  • 厚膜电阻层:通过丝网印刷+高温烧结形成,阻值均匀性好,一致性优于普通薄膜电阻;
  • 电极与保护层:两端银钯电极(兼容SMT焊接,焊接强度高),表面涂覆耐环境涂层,提升防潮、抗腐蚀能力。

三、电气性能优势

3.1 精度与长期稳定性

±1%精度满足多数中精度电路需求;厚膜工艺的长期稳定性优异,经负载寿命试验(125℃、额定功率下1000小时) 后,阻值变化率通常≤0.5%,可靠性远超一般电阻,可降低电路后期维护成本。

3.2 功率与热特性

100mW功率等级适配多数低功耗电路(如传感器接口、LED驱动辅助电路);陶瓷基底的热导率(约20W/m·K)提升了散热效率,避免局部过热导致的阻值漂移,延长产品寿命。

3.3 宽温阻值一致性

±100ppm/℃的TCR确保在-55℃~+155℃范围内阻值稳定,例如在汽车发动机舱(典型温度120℃左右)或工业高温环境中,电路性能不受温度波动影响,保证信号传输准确性。

四、环境适应性

4.1 宽温耐受

工作温度范围覆盖-55℃~+155℃,符合汽车电子(AEC-Q200)、工业控制(IEC 60068)等标准的环境要求,可在极端温度下持续稳定工作。

4.2 抗环境应力

  • 防潮性:表面涂层可抵御高湿度环境(如热带地区、浴室传感器),经湿热试验(60℃、95%RH下1000小时)后阻值变化≤0.2%;
  • 抗振动/冲击:片式封装与PCB焊接强度高,经振动试验(10~2000Hz、1g加速度)后无开路/短路故障,适配车载、航空等振动场景;
  • 耐化学性:可承受焊接过程中的助焊剂腐蚀,长期使用无性能衰减。

五、典型应用场景

ERJ2RKF1801X的紧凑尺寸与稳定性能使其适配多领域:

  1. 消费电子:手机、平板的射频匹配电路、电池管理系统(BMS)分压电阻;
  2. 工业控制:PLC输入输出接口、传感器信号调理电路;
  3. 汽车电子:辅助驾驶传感器(如毫米波雷达)的滤波电路、车载娱乐系统接口;
  4. 通信设备:基站射频模块、光纤收发器的阻抗匹配电阻;
  5. 智能家居:智能门锁、温湿度传感器的分压/限流电路。

六、选型与使用注意事项

6.1 选型要点

  • 确认实际功耗:需留20%~30%余量(如实际功耗≤80mW时选择100mW电阻);
  • 精度匹配:若需更高精度(如±0.1%),需切换至松下精密电阻系列(如ERJ-3R);
  • 环境适配:高温环境(>155℃)需选择金属膜电阻(如ERJ-1R)。

6.2 使用注意

  • 焊接工艺:SMT回流焊温度曲线需符合松下规范(峰值温度240~260℃,时间≤10s);手工焊温度≤350℃,焊接时间≤3s,避免过热损坏电阻层;
  • 存储条件:常温(15~35℃)、干燥(湿度≤60%)环境存储,开封后12个月内使用完毕,防止电极氧化;
  • 可靠性验证:批量使用前可进行温度循环(-55℃~+155℃,50次循环)试验,确认性能稳定。

ERJ2RKF1801X作为松下成熟的厚膜片式电阻,以高性价比、稳定可靠的特性,成为中小功率电子设计的优选组件,可满足多数工业与消费电子的性能需求。

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