WMSIC Electronic Components

KOA RK73H2ATTD6R20F

ModelRK73H2ATTD6R20F
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 26+

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Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H2ATTD6R20F
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
RK73H2ATTD6R20F
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
6.2Ω
Electronic Component
1
Electronic Component
BM0264387466
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±200ppm/℃

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

RK73H2ATTD6R20F厚膜电阻产品概述

一、产品基本定位与核心身份

RK73H2ATTD6R20F是日本KOA品牌推出的0805封装厚膜贴片电阻,属于常规功率型电阻范畴,核心参数聚焦6.2Ω阻值、±1%精度、250mW功率,适用于中小功率电路的阻值匹配、限流、分压等基础应用,同时具备宽温工作能力,可覆盖工业级环境需求。

二、核心电气参数详解

本产品的关键电气参数围绕阻值精度、功率耐受、环境适应性展开,具体如下:

  • 阻值与精度:标称阻值6.2Ω,精度等级±1%,可满足大多数电路对阻值偏差的控制需求(如信号匹配、电源反馈等场景无需更高精度);
  • 功率与电压:额定功率250mW(即1/4W),符合0805封装的常规功率范围;最大工作电压150V,远高于“功率/阻值”的理论计算值(约6.3V),说明产品绝缘性能优异,可兼容高压小电流场景;
  • 温度系数:±200ppm/℃,表示温度每变化1℃,阻值变化约±0.0002%;若环境温度变化100℃,阻值偏差仅±0.2%,厚膜工艺下的温度稳定性优于部分薄膜电阻;
  • 工作温度范围:-55℃~+155℃,覆盖工业级温度标准,可适应低温(如户外低温环境)、高温(如设备内部散热区域)场景。

三、封装与物理特性

产品采用0805封装(公制对应2012,即2.0mm×1.2mm尺寸),属于表面贴装(SMD)器件,具备以下物理特性:

  • 封装尺寸紧凑,适合小型化电路设计(如消费电子、便携设备);
  • 采用厚膜工艺制造:以高纯度氧化铝陶瓷为基板,通过丝网印刷电阻浆料(含金属氧化物)并高温烧结成型,电阻膜层厚度约10~100μm,兼具成本优势与机械稳定性;
  • 焊盘设计适配回流焊、波峰焊工艺,可兼容自动化贴装生产线,提升量产效率。

四、电气性能与可靠性优势

相比普通电阻,RK73H2ATTD6R20F在性能稳定性与环境耐受性上具备明显优势:

  1. 精度一致性好:厚膜工艺的丝网印刷精度可控,批量产品的阻值偏差一致性优于±1%标称值,适合规模化生产应用;
  2. 功率与电压兼容:250mW功率可满足中小功率负载(如LED限流、小信号放大),150V耐压可兼容高压分压电路(如电源监控);
  3. 宽温下性能稳定:-55℃~155℃范围内,阻值漂移小,无明显性能衰减,适合工业控制、汽车电子等恶劣环境;
  4. 耐环境性强:厚膜电阻膜层致密,抗潮湿、抗盐雾能力优于碳膜电阻,可适应户外或潮湿工作场景。

五、典型应用场景

结合参数特性,本产品主要适用于以下场景:

  1. 电源电路:DC-DC转换器的反馈分压电阻、低压电源的限流电阻;
  2. 信号处理:音频放大电路的负载电阻、传感器接口的匹配电阻;
  3. 工业控制:PLC模块的输入/输出接口电阻、温度传感器的偏置电阻;
  4. 消费电子:小型家电(如加湿器、充电器)、便携设备(如蓝牙耳机)的常规电阻应用。

六、品牌与质量保障

KOA作为日本知名无源器件制造商,拥有超过70年的电阻研发与生产经验,产品符合RoHS 2.0、REACH等环保标准,且通过ISO 9001质量管理体系认证。RK73H2ATTD6R20F的厚膜工艺成熟,批量稳定性高,可满足客户对成本与性能的平衡需求。

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