WMSIC Electronic Components

KOA RK73H2ATTD1003F

ModelRK73H2ATTD1003F
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H2ATTD1003F
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
RK73H2ATTD1003F
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
100kΩ
Electronic Component
1
Electronic Component
BM0265802638
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.

RK73H2ATTD1003F 厚膜电阻产品概述

一、产品核心定位与身份

RK73H2ATTD1003F是日本KOA公司推出的厚膜固定贴片电阻,采用0805(公制2012)封装,属于通用型精密小功率电阻范畴。该产品针对对阻值精度、功率容量、温度稳定性有基本要求的电子电路设计,广泛适配消费电子、工业控制、汽车电子等领域的中低端至中端应用场景,是实现阻抗匹配、分压、限流、滤波等基础功能的可靠选择。

二、关键电气参数解析

该电阻的核心电气参数直接决定了其应用边界,具体如下:

1. 阻值与精度

标称阻值为100kΩ,精度等级为±1%——这一精度属于常规精密级(优于±5%的普通级),可满足多数需要稳定阻抗的电路需求(如传感器信号调理、模拟滤波电路),避免因阻值偏差导致的信号失真或功能异常。

2. 功率与电压能力

  • 额定功率为250mW(1/4W),符合0805封装的典型功率等级,适配低功耗至中等功耗的电路设计;
  • 最大工作电压为150V,该电压值在0805封装电阻中属于较高水平,可支持小型电源电路的分压、DC-DC转换器的反馈网络等中等电压场景(需注意实际工作电压不超过额定值,避免击穿)。

3. 温度特性

  • 温度系数(TCR)为**±100ppm/℃**:表示环境温度每变化1℃,阻值变化±100ppm(即0.01%),这一系数在厚膜电阻中属于中等偏优,能有效降低温度波动对电路性能的影响;
  • 工作温度范围为**-55℃~+155℃**:覆盖了工业级低温环境(如北方户外设备)和高温环境(如车载发动机舱附近的低功耗电路),适配 harsh 环境应用。

三、封装与物理特性

RK73H2ATTD1003F采用0805贴片封装(公制尺寸2.0mm×1.2mm×0.5mm左右,具体以KOA官方数据为准),具有以下物理优势:

  1. 小型化高密度:尺寸紧凑,适合PCB板高密度贴片组装,尤其适合便携式电子设备(如智能手机、智能手表)的空间受限设计;
  2. 焊接可靠性:电极采用银钯合金或镍基材料,兼容回流焊、波峰焊等主流表面贴装工艺,焊接后附着力强,长期使用不易出现虚焊、脱落问题;
  3. 环保合规:符合RoHS 2.0、REACH等国际环保标准,无铅无卤,适配全球市场的绿色生产要求。

四、典型应用场景

结合该电阻的参数特性,其典型应用场景包括:

  1. 消费电子:智能手机/平板的音频信号调理电路、传感器(如加速度计、光线传感器)的阻抗匹配网络、小型电源适配器的分压电路;
  2. 工业控制:PLC(可编程逻辑控制器)的输入输出模块限流电阻、小型传感器节点的滤波电路、工业机器人的低功耗控制电路;
  3. 汽车电子:车载信息娱乐系统(如中控屏)的按键电路、车载传感器(如胎压监测)的信号调理、低功耗车载辅助电路;
  4. 通信设备:小型基站的偏置电路、路由器的滤波网络、无线耳机的充电电路限流;
  5. 电源管理:DC-DC转换器的反馈分压电阻、线性稳压器的输出限流、电池保护电路的检测电阻。

五、品质与可靠性保障

KOA作为拥有数十年历史的电子元器件厂商,RK73H2ATTD1003F的品质具有以下保障:

  1. 工艺稳定性:厚膜电阻采用丝网印刷+烧结工艺,阻值一致性好,批量生产的离散度小;
  2. 长期可靠性:经过高低温冲击、湿热老化等可靠性测试,长期工作下阻值漂移率低(一般小于0.5%/1000小时);
  3. 认证齐全:除环保认证外,部分批次可满足AEC-Q200(汽车电子)标准,适配对可靠性要求较高的车载场景。

总结

RK73H2ATTD1003F以其平衡的精度、功率、温度特性和紧凑封装,成为电子电路设计中通用精密电阻的高性价比选择,适合多数需要稳定阻抗性能的中低端至中端应用。

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