WMSIC Electronic Components

KOA RK73H1ETTP1501F

ModelRK73H1ETTP1501F
Package0402
BrandKOA
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H1ETTP1501F
Type
KOA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73H1ETTP1501F
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
1.5kΩ
Electronic Component
1
Electronic Component
BM0227707156
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

RK73H1ETTP1501F厚膜贴片电阻产品概述

一、产品定位与品牌背景

RK73H1ETTP1501F是日本KOA株式会社推出的0402封装厚膜贴片电阻,属于KOA经典RK73系列的中端通用型产品。KOA作为全球知名电子元件制造商,拥有超过70年的电阻研发与生产经验,产品以高可靠性、宽温适应性著称,广泛覆盖工业、汽车、消费电子等领域。该电阻针对中小信号电路的精度需求设计,兼顾性能与成本,适合高密度PCB布局场景。

二、核心参数深度解析

该电阻的核心参数完全匹配通用电路的典型需求,关键指标如下:

  • 阻值与精度:1.5kΩ(标识代码1501,符合E24系列阻值规范),±1%精度等级,可满足分压、基准电路等对阻值准确性要求较高的应用;
  • 功率与电压:额定功率100mW,工作电压上限75V,最大允许电流约8.16mA(由公式(I=\sqrt{P/R})计算),适合小信号放大、滤波等低功耗电路;
  • 温度特性:温度系数±100ppm/℃,即温度每变化100℃,阻值变化约15Ω,稳定性优于普通厚膜电阻(通常±200ppm/℃);
  • 工作温度范围:-55℃~+155℃,覆盖工业级、汽车级的极端温度需求。

三、封装与结构特点

该电阻采用0402英制封装(对应公制1005,尺寸1.0mm×0.5mm),是贴片电阻中体积较小的封装之一,适合高密度PCB设计(如可穿戴设备、智能手机)。结构上采用厚膜工艺:在氧化铝陶瓷基底上印刷钌基电阻浆料,经高温烧结形成电阻层,再通过镍-锡镀层端电极实现表面贴装连接。厚膜工艺平衡了成本与性能,比薄膜电阻成本更低,比碳膜电阻精度更高。

四、性能优势

  1. 精度与稳定性:±1%精度+±100ppm/℃温漂,可有效减少电路漂移误差,适合模拟信号处理、传感器接口等场景;
  2. 宽温适应性:-55℃~+155℃的工作范围,满足汽车电子(如车载传感器)、工业控制(如PLC模块)的极端温度需求;
  3. 小体积高集成:0402封装可在1cm² PCB上布局超过1000个电阻,大幅提升电路集成度;
  4. 电气可靠性:KOA厚膜工艺保证低噪声(典型值<1nV/√Hz)、低寄生电容(典型值<0.1pF),适合射频前端、低噪声放大电路;
  5. 工艺兼容性:支持回流焊(峰值温度240~250℃,时间≤30s)、波峰焊等常规表面贴装工艺,无铅环保(符合RoHS 2.0、REACH法规)。

五、典型应用场景

该电阻因体积小、精度高、宽温适应,广泛应用于以下领域:

  • 消费电子:智能手机、平板电脑的信号滤波、分压电路,可穿戴设备(智能手表、手环)的低功耗传感器接口;
  • 工业控制:PLC输入输出模块、温度传感器信号调理电路;
  • 汽车电子:车载信息娱乐系统(如中控屏按键电路)、胎压监测传感器模块;
  • 通信设备:小型基站、路由器的射频前端滤波、阻抗匹配电路;
  • 医疗设备:便携式监护仪的低噪声信号放大电路(基础性能满足需求,需结合医疗认证)。

六、可靠性与环境测试

KOA对该电阻进行了严格的可靠性验证,符合以下标准:

  • 温度循环:-55℃~+155℃循环1000次,阻值变化≤±0.5%;
  • 湿度测试:85℃/85%RH环境下1000小时,阻值变化≤±1%;
  • 振动测试:符合IEC 60068-2-6标准(10~2000Hz,加速度2g),无开路/短路故障;
  • 长期稳定性:125℃下施加额定功率1000小时,阻值变化≤±0.2%。

七、选型与替换注意事项

  1. 同系列替换:可替换为KOA RK73系列同封装、同精度的其他阻值(如1.2kΩ、1.8kΩ),电气参数一致;
  2. 跨品牌替换:若需替换,需确认关键参数匹配,如Murata MCR01系列(0402、1.5kΩ±1%、100mW),但需注意温度系数(Murata部分型号为±50ppm/℃,需评估电路兼容性);
  3. 使用限制:避免超过额定功率(100mW)、工作电压(75V),焊接时需控制回流焊温度,防止电阻层损坏。

该电阻凭借平衡的性能与成本优势,成为中小信号电路的高性价比选择,适合批量应用于对精度、宽温有要求的电子设备中。

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