WMSIC Electronic Components

KOA RK73H1ETTP2202F

ModelRK73H1ETTP2202F
Package402
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 RK73H1ETTP2202F
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
RK73H1ETTP2202F
Electronic Component
1
Package
402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
22kΩ
Electronic Component
1
Electronic Component
BM0263488994
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.

RK73H1ETTP2202F厚膜电阻产品概述

一、产品定位与品牌背景

RK73H1ETTP2202F是日本KOA公司推出的通用型高精度厚膜贴片电阻,属于KOA经典的RK73H系列。KOA作为全球知名电子元器件厂商,在电阻领域拥有60余年技术积累,其厚膜电阻以“高可靠性、宽温适应性、小封装集成”为核心优势,广泛应用于工业控制、消费电子、汽车电子等领域。该型号定位为“常规电路核心电阻”,适配多数对阻值精度、功率密度有中等要求的设计场景。

二、核心电气参数详解

该型号的关键参数均围绕“小封装+高精度+宽温稳定”设计,具体解析如下:

  1. 阻值与精度:标称阻值22kΩ(22000Ω),精度±1%——属于工业级常用精度,比±5%通用电阻的阻值偏差小5倍,可满足运放偏置、ADC参考分压等对阻值一致性要求较高的电路。
  2. 功率与电压:额定功率100mW(1/10W),最大工作电压75V(直流/交流有效值)。需注意双重限制:实际功耗需≤100mW(如22kΩ下最大电流约2.12mA),同时电压需≤√(P×R)≈46.9V(避免电压过高导致功耗超标)。
  3. 温度系数(TCR):±100ppm/℃——表示温度每变化1℃,阻值变化百万分之一百。以25℃为基准,125℃时阻值变化约220Ω(22kΩ×100℃×100e-6),属于厚膜电阻的常规稳定水平,适配-55℃~155℃宽温环境。
  4. 工作温度范围:-55℃+155℃——符合工业级(-40℃+85℃)和部分汽车级(-40℃~+125℃)的温度要求,可适应户外设备、车载系统等极端环境。

三、封装与工艺特性

  1. 封装尺寸:0402(英制:0.04inch×0.02inch,公制:1.0mm×0.5mm)——是贴片电阻中最小的常用封装之一,适合高密度PCB设计(如智能手机、小型工业模块),需注意焊盘设计需符合IPC-782标准(焊盘间距0.2mm左右),避免虚焊、立碑等焊接缺陷。
  2. 厚膜工艺:采用“陶瓷基片+钌基电阻浆料+丝网印刷烧结”工艺——成本低于薄膜电阻,但精度和温系略逊于薄膜;优势在于抗过载能力强(可承受短时间过功率冲击),适合常规电路的长期稳定运行。

四、典型应用场景

该型号的参数匹配性使其覆盖多个领域:

  1. 消费电子:智能手机/平板的音频放大偏置电阻、触控模块分压网络;
  2. 工业控制:PLC输入输出电路的信号匹配、温度传感器(如PT100)的分压网络;
  3. 汽车电子:车载信息娱乐系统的小信号调理(如FM天线匹配);
  4. 通信设备:小型基站的电源滤波辅助电阻、路由器的信号分配网络;
  5. 医疗仪器:便携式血糖监测仪的信号放大偏置(需确认是否符合医疗级认证,KOA部分型号具备ISO13485认证)。

五、可靠性与环境测试

KOA对该型号进行了多项可靠性验证,符合J-STD-020、MIL-STD-202等国际标准:

  • 耐焊接热:可承受回流焊260℃/10s的温度冲击,阻值变化率≤±0.1%;
  • 湿度耐久性:85℃/85%RH环境下1000小时测试,阻值变化率≤±0.5%;
  • 负载寿命:70℃环境下施加额定功率1000小时,阻值变化率≤±0.2%;
  • 机械强度:振动(10~2000Hz,1g加速度)和冲击(1000g,1ms)测试后,无开路/短路故障。

六、选型与替代参考

  1. 同系列升级:若需更高精度(±0.5%)可选RK73H1ETTP2202G;若需更低温系(±50ppm/℃)可选RK73H2ETTP2202F;
  2. 跨品牌替代:可兼容Yageo RC0402FR-0722KL(0402、22kΩ、1%、1/10W)、Murata GRM0402C1H223KA51D(薄膜电阻,温系±25ppm/℃,适合高精度场景);
  3. 注意事项:替代时需确认封装尺寸、引脚间距、功率/电压限制完全匹配,避免因封装差异导致焊接问题或性能不达标。

总结

RK73H1ETTP2202F以“小封装、高精度、宽温稳定”为核心优势,平衡了成本与性能,是工业控制、消费电子等领域的通用可靠选择。其参数适配多数常规电路的电阻需求,同时通过KOA的可靠性测试,可满足长期稳定运行的要求。

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