WMSIC Electronic Components

KOA RK73H1JTTD33R0F

ModelRK73H1JTTD33R0F
Package0603
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 Option 133242

Availability on request

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H1JTTD33R0F
Type
KOA
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73H1JTTD33R0F
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.023g
Electronic Component
33Ω
Electronic Component
1
Electronic Component
BM0265802643
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃

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

RK73H1JTTD33R0F 厚膜贴片电阻产品概述

RK73H1JTTD33R0F是日本KOA公司推出的一款小功率高精度厚膜贴片电阻,采用0603(英制)紧凑封装,针对消费电子、工业控制、通信设备等领域的精准信号调理、限流分压需求设计,兼具成本优势与可靠性表现。

一、产品核心定位

该电阻属于KOA厚膜电阻系列中的通用型产品,核心定位为**“高性价比+宽温稳定”**:在满足±1%精度要求的同时,通过厚膜工艺平衡了成本与性能,适配对空间敏感、环境温度变化较大的电路场景——既避免了薄膜电阻的高成本,也弥补了普通碳膜电阻的精度与温度特性不足,是工业级与消费电子领域的实用型选择。

二、关键参数详解

各参数直接决定了产品的应用边界,具体解析如下:

1. 阻值与精度

阻值为33Ω±1%,绝对偏差≤0.33Ω。该精度可覆盖绝大多数需要精准控制的电路:例如工业传感器的信号分压电路(需稳定分压比)、手机充电电路的限流电阻(需精准控制电流),避免因阻值偏差导致的信号失真或电流过载。

2. 功率与电压额定值

  • 额定功率:125mW,可稳定承载的最大连续功率,适配低功耗电路(如IoT设备、小型通信模块);
  • 工作电压:75V,最大允许施加电压,避免高压击穿风险,适合12V、24V等工业常用电压系统。

3. 温度特性与工作范围

  • 温度系数(TCR):±100ppm/℃,即温度每变化1℃,阻值变化±33μΩ(33Ω×100×1e-6)。当环境温度从-55℃升至155℃(变化210℃),阻值最大变化仅±0.693Ω,仍在±1%精度范围内,保证宽温环境下的性能稳定;
  • 工作温度范围:-55℃~+155℃,覆盖工业级(-40℃+85℃)与部分汽车级(-40℃+125℃)场景,可适应极端温度环境(如户外传感器、车载辅助电路)。

三、封装与工艺特性

1. 0603封装优势

采用英制0603封装(公制1608,尺寸1.6mm×0.8mm),体积仅为0805封装的约50%,适合高密度PCB设计:例如智能手机主板、小型路由器、可穿戴设备等对空间要求严格的产品,能有效提升电路集成度,满足小型化趋势。

2. 厚膜工艺特点

通过丝网印刷+高温烧结工艺制备,相比薄膜电阻(真空沉积)成本更低,同时具备:

  • 耐脉冲能力强:可承受短时间过功率冲击(如电路启动瞬间的浪涌),降低失效风险;
  • 长期稳定性好:经老化测试后,阻值漂移率≤0.1%/1000小时,适合量产应用与长期运行的设备。

四、典型应用场景

结合参数特性,该电阻主要应用于以下领域:

1. 消费电子

  • 手机/平板:电源管理模块的限流电阻、屏幕驱动电路的分压电阻;
  • 可穿戴设备:心率传感器、运动传感器的信号调理电阻,兼顾小体积与精度需求。

2. 工业控制

  • PLC(可编程逻辑控制器):输入输出接口的限流电阻,保证信号传输稳定;
  • 传感器系统:温度传感器、压力传感器的信号分压与校准电阻,适配宽温环境。

3. 通信设备

  • 小型基站:射频前端的匹配电阻,提升信号传输效率;
  • 路由器/交换机:电源滤波电路的辅助电阻,降低电磁干扰。

4. 汽车电子(辅助场景)

  • 车载显示屏:背光驱动电路的限流电阻,控制亮度稳定;
  • 车身控制模块:小功率开关电路的分压电阻,适配车载温度波动。

五、品牌与可靠性优势

KOA作为日本老牌电子元件厂商(成立于1940年),在电阻领域拥有成熟的研发与制造体系:

  • 环保合规:符合RoHS、REACH等国际环保标准,无铅无镉,满足绿色制造要求;
  • 可靠性验证:通过高温存储、温度循环、湿热测试等多项可靠性实验,保证10年以上的使用寿命;
  • 供应链稳定:全球布局生产基地,可满足大批量量产需求,交付周期可控。

综上,RK73H1JTTD33R0F是一款平衡精度、成本与可靠性的厚膜贴片电阻,适配多领域的紧凑、宽温电路设计,是工业与消费电子领域的高性价比选择。

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