WMSIC Electronic Components

KOA RK73H2ATTD1001F

ModelRK73H2ATTD1001F
Package805
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 RK73H2ATTD1001F
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
RK73H2ATTD1001F
Electronic Component
1
Package
805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
1kΩ
Electronic Component
1
Electronic Component
BM0264770989
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.

RK73H2ATTD1001F 厚膜贴片电阻产品概述

RK73H2ATTD1001F是日本KOA公司推出的通用型厚膜贴片电阻,采用0805(英制)封装,核心参数聚焦1kΩ阻值、±1%精度、250mW额定功率,适配工业控制、消费电子、汽车电子等多领域需求,兼具成本优势与性能稳定性。

一、产品核心身份与定位

该型号属于KOA厚膜贴片电阻系列的主流产品,定位为中精度、中小功率、宽温适用的通用无源器件。型号编码“1001”遵循国际电阻编码规范:前三位“100”为有效数字,第四位“1”为倍率(10¹),即100×10¹=1000Ω(1kΩ),清晰对应标称阻值。

二、关键参数指标详解

  1. 阻值与精度:标称阻值1kΩ,精度±1%——可满足多数电路对阻值偏差的严格要求(如传感器信号分压、电源电压反馈回路),无需额外校准即可保证电路性能一致性;
  2. 功率与电压约束:额定功率250mW,最大工作电压150V。由公式P=U²/R可知,当电压达150V时,实际功率仅22.5mW(远低于额定),因此电压限制是核心应用约束,适配高压小电流场景;
  3. 温度特性:温度系数(TCR)±100ppm/℃——温度每变化1℃,阻值变化0.01%。以25℃基准值1kΩ为例,125℃时阻值漂移范围为990Ω~1010Ω,宽温下性能稳定;
  4. 工作温度范围:-55℃~+155℃——覆盖工业级极端工况(如户外设备低温启动、高温设备内部散热),部分场景可兼容汽车电子温度需求。

三、封装与物理特性

采用0805贴片封装(公制对应2012,尺寸2.0mm×1.2mm×0.5mm),适配SMT自动化生产,兼容回流焊、波峰焊工艺。端电极采用“镍底层+锡镀层”结构,保证焊接强度与长期可靠性,避免虚焊、脱焊。厚膜工艺(丝网印刷+烧结)赋予其成本优势,兼顾功率密度与稳定性,区别于薄膜电阻的高精度高成本路线。

四、电气性能优势

  1. 精度稳定性:±1%精度+±100ppm/℃温漂组合,宽温下阻值偏差≤2%(如155℃时漂移≤1.55%),满足工业控制电路长期可靠性;
  2. 电压兼容性:150V最大电压适配LED驱动(高压端限流)、电源适配器(高压反馈)等场景,避免电压击穿;
  3. 低功耗适配:250mW额定功率覆盖中小功率电路(微控制器IO限流、音频信号衰减),实际使用建议降额至50%以下延长寿命。

五、环境适应性与可靠性

  1. 温度耐受:-55℃~+155℃宽温通过KOA内部测试,极端温度下连续工作1000小时无性能衰减;
  2. 耐湿抗振:符合JIS C 5201标准,耐受85℃/85%RH湿热1000小时,抗振动(10g~2000Hz)、抗冲击(1000m/s²),适合车载、手持终端;
  3. 环保合规:满足RoHS 2.0、REACH指令,无铅无镉,符合全球环保要求。

六、典型应用场景

  1. 工业控制:PLC IO口限流、传感器信号调理(分压/滤波)、电机驱动辅助电路;
  2. 消费电子:LED照明驱动(高压限流)、电源适配器(电压反馈分压)、音频信号衰减;
  3. 汽车电子:车载显示屏背光驱动、胎压监测传感器接口;
  4. 通信设备:基站电源模块(辅助分压)、路由器信号调理;
  5. 医疗设备:小型监护仪信号电路(低功率需求)。

七、品牌与品质背书

KOA作为日本百年无源器件厂商,厚膜电阻工艺成熟,品控严格。该型号通过ISO 9001、IATF 16949认证,产品一致性获华为、三星、西门子等客户验证,广泛应用于全球终端产品。

总结:RK73H2ATTD1001F是性价比突出的通用厚膜电阻,平衡精度、功率、宽温与成本,是多数电子设备“够用且可靠”的优选方案。

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