WMSIC Electronic Components

KOA RN73H1ETTP1002B25

ModelRN73H1ETTP1002B25
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 RN73H1ETTP1002B25
Type
KOA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RN73H1ETTP1002B25
Electronic Component
1
Package
402
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.011g
Electronic Component
10kΩ
Electronic Component
1
Electronic Component
BM0265802628
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±25ppm/℃

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

RN73H1ETTP1002B25 金属膜贴片电阻产品概述

一、产品定位与核心价值

RN73H1ETTP1002B25是KOA品牌0402封装高精度金属膜贴片电阻,针对小信号电路中对阻值精度、稳定性要求较高的场景设计,兼具小型化、高可靠性特点,可替代同类低精度电阻提升电路性能,适用于消费电子、工业控制、通信设备等多领域。

二、关键性能参数深度解析

1. 阻值与精度

标称阻值10kΩ,精度±0.1%——属于“高精度电阻”范畴,可满足分压电路、反馈网络等对阻值一致性要求高的设计,避免因阻值偏差导致的电路输出误差(例如在12V电源分压为3.3V的电路中,0.1%精度可将输出误差控制在±3.3mV内)。

2. 功率与电压约束

  • 额定功率62.5mW:需注意功率-电压匹配(公式:(P=U^2/R)),实际应用中需保证电阻功耗不超过额定值(如10kΩ电阻若工作电压为25V,功耗为62.5mW,刚好满足额定要求;若电压超过25V,需通过电路限流保证功耗不超标);
  • 最大工作电压50V:为电阻的绝缘耐压上限,不可单独作为功耗依据,需结合功率约束综合判断。

3. 温度系数与稳定性

温度系数±25ppm/℃——衡量阻值随温度变化的核心指标:温度每变化1℃,阻值变化0.0025%。以工作温度范围(-55℃+155℃)计算,总阻值变化量约0.525%,远低于普通碳膜电阻(通常100500ppm/℃),可保证高低温环境下电路性能稳定(如工业车间高温场景或户外低温场景)。

4. 宽温工作范围

-55℃~+155℃:覆盖工业级、部分汽车级温度需求,无需额外散热设计即可适应极端环境,提升产品适用场景广度。

三、封装与工艺优势

1. 小型化封装

采用0402封装(英制:0.04″×0.02″;公制:1.0mm×0.5mm),体积仅为常规1206封装的1/9,可大幅提升PCB贴装密度,适合智能手机、智能穿戴等小型化终端产品的布局需求。

2. 金属膜工艺特性

通过真空溅射金属膜技术制备电阻体,相比碳膜电阻具有三大优势:

  • 低噪声:典型值<0.1μV/√Hz,适合音频、传感器等对噪声敏感的电路;
  • 低漂移:长期使用阻值漂移<0.1%/1000小时,提升电路长期可靠性;
  • 耐焊接:可承受回流焊(260℃/10秒)等焊接工艺,无阻值突变风险。

四、品牌与可靠性保障

KOA作为日本老牌电子元器件制造商(成立于1940年),在电阻领域拥有70余年技术积累:

  • 符合RoHS、REACH环保法规,无铅焊接兼容性强;
  • 通过严格可靠性测试(高温存储、温度循环、振动测试),批量生产一致性误差<0.05%;
  • 支持汽车级应用(部分衍生型号),可满足车载电子的严苛要求。

五、典型应用场景

  1. 消费电子:智能手机电源管理IC的分压反馈电阻、平板电脑音频模块的阻抗匹配电阻;
  2. 通信设备:路由器信号放大电路偏置电阻、光模块限流电阻;
  3. 工业控制:PLC输入信号调理电阻、温度传感器信号分压电阻;
  4. 医疗设备:便携式血糖仪信号放大电阻、监护仪参数校准电阻;
  5. 汽车电子:车载USB接口限流电阻(需搭配KOA汽车级认证型号)。

六、选型注意事项

  • 需结合电路功耗选择,避免超过额定功率(62.5mW);
  • 若用于汽车电子,需确认型号是否具备AEC-Q200认证;
  • 贴装时需遵循0402封装的焊接参数(如回流焊温度曲线),避免虚焊。

RN73H1ETTP1002B25凭借高精度、宽温稳定、小型化等特点,成为小信号电路中替代低精度电阻的优选方案,可满足多领域对电子元器件性能的需求。

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