WMSIC Electronic Components

KOA RK73H2ATTD2201F

ModelRK73H2ATTD2201F
Package0805
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H2ATTD2201F
Type
KOA
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73H2ATTD2201F
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
2.2kΩ
Electronic Component
1
Electronic Component
BM0265802645
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±100ppm/℃

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

RK73H2ATTD2201F厚膜贴片电阻产品概述

RK73H2ATTD2201F是日本KOA公司推出的一款通用型厚膜贴片电阻,采用0805(2012公制)封装,凭借稳定的电气性能、宽温度适应范围及高性价比,成为消费电子、工业控制等领域的主流选型之一。

一、产品基本信息与定位

该电阻属于厚膜贴片电阻系列,核心参数明确:阻值2.2kΩ、精度±1%、额定功率250mW、工作电压150V,温度系数±100ppm/℃,工作温度覆盖-55℃至+155℃。其定位为中精度、宽温域通用电阻,兼顾性能稳定性与成本控制,适配多数电子电路的阻抗匹配、分压、限流等基础功能需求,无需额外投入高精度电阻的成本。

二、核心电气参数详解

1. 阻值与精度

阻值标称2.2kΩ(对应代码“2201”,前三位为有效数字220,第四位为倍率10¹),精度±1%,可满足电路对阻抗一致性的要求——例如,在模拟信号调理电路中,±1%精度可避免因阻值偏差导致的信号失真;相比±5%精度电阻,其在批量生产中的参数一致性更高,减少电路调试难度。

2. 功率与电压额定值

  • 额定功率250mW:在25℃环境下,该电阻可稳定承载250mW的功率损耗;若环境温度升高,需按降额曲线使用(例如125℃时降额至50%功率),避免过温损坏;
  • 工作电压150V:为电阻两端允许施加的最大直流/交流电压,需注意功率与电压的关联限制——根据公式P=U²/R,150V下的功率损耗约10.2W(远大于250mW),因此实际使用中需同时满足“功率≤250mW”和“电压≤150V”的双重要求,避免过功率或过电压击穿。

3. 温度系数与宽温性能

温度系数为±100ppm/℃,即温度每变化1℃,阻值变化±0.01%。在全工作温度范围(-55℃~+155℃)内,最大阻值变化量约为±2.2Ω(2.2kΩ×100ppm/℃×210℃),可满足工业设备、车载辅助电路等宽温环境下的性能稳定需求,无需额外增加温度补偿电路。

三、物理封装与工艺特点

1. 0805封装优势

采用0805英寸(2.0mm×1.2mm)贴片封装,符合公制2012规格,尺寸紧凑,适合高密度PCB设计(例如智能手机、小型工业控制器的多层板);焊盘设计兼容常规回流焊工艺,可实现自动化贴装,提升生产效率。

2. 厚膜工艺特性

该电阻采用厚膜丝网印刷+高温烧结工艺:将电阻浆料印刷在氧化铝陶瓷基片上,经高温烧结形成稳定的电阻膜,再通过激光微调实现精度控制。相比薄膜电阻(精度更高但成本高),厚膜工艺成本更低;相比碳膜贴片电阻(精度低、温度系数大),其性能更稳定,抗湿、抗浪涌能力更强。

四、典型应用场景

RK73H2ATTD2201F的参数适配性使其广泛应用于以下领域:

  1. 消费电子:手机、平板、笔记本电脑的电源滤波电路、信号分压网络(例如音频信号调理);
  2. 工业控制:PLC(可编程逻辑控制器)的输入输出接口、传感器信号放大电路(宽温环境适配);
  3. 汽车电子:车载多媒体系统、低压传感器电路(工作温度覆盖车载环境的极端温差);
  4. 通信设备:路由器、基站的阻抗匹配网络、电源模块的限流电阻。

五、可靠性与环保标准

1. 可靠性表现

  • 宽温域稳定性:-55℃~+155℃的工作范围,通过高低温循环测试(符合JIS C 5201标准),可长期稳定工作;
  • 抗环境应力:耐湿(85℃/85%RH环境下1000小时阻值变化≤1%)、抗机械冲击(跌落测试符合MIL-STD-202标准);
  • 长期漂移小:厚膜电阻膜的化学稳定性好,长期使用后阻值漂移典型值≤0.5%/1000小时。

2. 环保合规

产品符合RoHS 2.0、REACH等国际环保标准,采用无铅焊端,避免有害物质对环境和人体的影响,适配全球市场的环保要求。

六、品牌与品质保障

KOA作为日本老牌电子元器件厂商,拥有超过70年的电阻生产经验,其产品以品质稳定、供货可靠著称。RK73H2ATTD2201F经过严格的出厂测试,每批次阻值一致性符合±1%精度要求,可满足量产项目的一致性需求;同时,KOA提供完善的技术支持,帮助客户解决电路设计中的电阻选型问题。

总结而言,RK73H2ATTD2201F是一款性能均衡、成本可控的厚膜贴片电阻,适合对精度、温域有基础要求的电子设备,是工业控制、消费电子等领域的高性价比选型。

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