WMSIC Electronic Components

KOA RK73H1ETTP2204F

ModelRK73H1ETTP2204F
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 RK73H1ETTP2204F
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
RK73H1ETTP2204F
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.011g
Electronic Component
2.2MΩ
Electronic Component
1
Electronic Component
BM0264459186
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±200ppm/℃

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

RK73H1ETTP2204F 厚膜贴片电阻产品概述

一、产品核心定位与品牌背景

RK73H1ETTP2204F是日本KOA公司推出的通用型厚膜贴片电阻,隶属于KOA RK73系列(厚膜电阻主力产品线),主打“小体积、宽温适应性与成本效益平衡”。KOA作为全球被动元件领域的资深厂商,以厚膜电阻的工艺稳定性、可靠性著称,该产品继承了KOA在厚膜技术上的成熟积累,适配消费电子、工业控制、汽车电子等多领域的高密度PCB设计需求。

二、关键电气性能参数深度解析

该产品的电气参数围绕“小封装下的稳定性能”设计,核心参数如下:

  1. 阻值与精度:标称阻值2.2MΩ(阻值代码“2204”,即220×10⁴Ω),精度±1%——满足工业级、消费电子等大部分非精密应用的阻值一致性要求,无需额外校准即可实现稳定电路性能。
  2. 功率与电压限制:额定功率1/10W(100mW),最大工作电压50V。需注意:功率与电压并非直接对应,实际需同时满足两个限制(如50V下工作时,功耗仅约1.14mW,远低于额定功率,电压是此场景下的核心限制)。
  3. 温度系数(TCR):±200ppm/℃——表示温度每变化1℃,阻值变化百万分之200。以工作温度范围(-55℃~155℃)计算,最大阻值变化约±0.042%,可有效抑制环境温度波动对电路的影响。

三、封装与物理特性

  1. 封装规格:采用0402英制封装(对应公制1005,即长1.0mm、宽0.5mm),是贴片电阻中体积最小的主流封装之一,适配高密度PCB设计(如智能手机、小型通信模块)。
  2. 厚膜电阻结构:基于陶瓷基板(Al₂O₃),通过丝网印刷厚膜电阻浆料(如RuO₂系)形成电阻层,表面覆盖玻璃保护层——兼具“成本低于薄膜电阻”与“耐环境性优于碳膜电阻”的优势,附着力强、抗机械应力。
  3. 尺寸与重量:标准0402封装尺寸约为1.016mm(长)×0.508mm(宽)×0.020mm(厚),单颗重量仅约0.01g,对整机重量影响可忽略。

四、环境适应性与可靠性

  1. 宽温工作范围:-55℃~+155℃,覆盖工业级、汽车级应用的典型温度场景(如车载传感器、户外工业控制器),无需额外散热或温度补偿。
  2. 耐环境性能:玻璃保护层可有效抵御湿度、化学腐蚀(如弱酸碱),符合JIS C 5201等行业标准;负载寿命测试(125℃、1000小时、额定功率)下,阻值变化通常≤±1%,可靠性稳定。
  3. 抗机械应力:厚膜结构的电阻层与陶瓷基板结合紧密,可承受PCB弯曲(如0.5mm弯曲半径下无失效),适配柔性PCB或小型化设备的机械振动场景。

五、典型应用场景

该产品因“小体积、宽温、1%精度”的组合优势,广泛应用于:

  1. 消费电子:智能手机、平板的信号分压电路、摄像头偏置电阻、电池管理系统(BMS)的采样电阻;
  2. 工业控制:PLC(可编程逻辑控制器)的输入输出接口、传感器信号调理电路(如压力传感器、温度传感器的桥臂电阻);
  3. 汽车电子:车载信息娱乐系统(IVI)的按键电路、车身控制模块(BCM)的电阻网络、胎压监测系统(TPMS)的信号滤波;
  4. 通信设备:基站射频模块的偏置电阻、路由器的电源反馈电路、光纤收发器的阻抗匹配;
  5. 小型电源:DC-DC转换器的限流电阻、线性稳压器的分压电阻(小体积适配高密度电源模块)。

六、选型与应用注意事项

  1. 参数匹配:需同时满足额定功率(100mW)与最大电压(50V),避免过压/过功率导致失效;
  2. 精度适配:若需更高精度(如±0.1%),应选择KOA薄膜电阻系列(如RK73Z);若对温度稳定性要求极高(如±50ppm/℃),需切换至低温漂产品;
  3. 焊接工艺:0402封装需遵循回流焊温度曲线(推荐峰值温度240260℃,时间1030秒),避免热应力导致焊点开裂或电阻层损坏;
  4. 静电防护:虽厚膜电阻抗静电能力优于薄膜,但0402小封装仍需注意ESD防护(推荐接触放电≤8kV),避免生产过程中损坏;
  5. 存储条件:未焊接产品需存储于温度-20℃~+40℃、湿度≤60%RH的环境,避免受潮影响焊接性能。

RK73H1ETTP2204F作为KOA厚膜电阻的经典型号,以“小体积、宽温、成本效益”为核心优势,覆盖多领域高密度电路设计需求,是替代传统碳膜电阻、适配小型化设备的理想选择。

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