WMSIC Electronic Components

KOA RK73B2BTTD156J

ModelRK73B2BTTD156J
Package1206
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+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73B2BTTD156J
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
RK73B2BTTD156J
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.03g
Electronic Component
15MΩ
Electronic Component
1
Electronic Component
BM0265324815
Operating Temperature
55℃~+155℃
Operating Voltage
200V
Electronic Component
±400ppm/℃

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

RK73B2BTTD156J 厚膜贴片电阻产品概述

一、产品核心身份与定位

RK73B2BTTD156J是KOA公司推出的1206封装(公制3216)厚膜贴片电阻,属于通用型高阻值系列产品。该电阻针对中低功率电子电路的阻值匹配、信号调理需求设计,以平衡性能与成本为核心,适配工业控制、消费电子、信号链路等多领域的常规应用场景,无需高精度等级的工程设计可优先选择。

二、关键性能参数详解

该电阻的核心参数明确了应用边界,具体如下:

  • 阻值与精度:标称阻值15MΩ(15兆欧姆),精度±5%,满足多数不需要高精度的电路需求(如分压、信号衰减),阻值偏差在工程应用中可忽略;
  • 功率等级:额定功率250mW(0.25瓦),为1206封装厚膜电阻的常规功率规格,适配小功率电路的功耗上限;
  • 工作电压:最大工作电压200V,需严格控制实际电路电压不超过此值,避免电阻击穿或性能下降;
  • 温度系数:±400ppm/℃,表示温度每变化1℃,阻值变化±0.04%,宽温范围内阻值漂移可控;
  • 工作温度范围:-55℃至+155℃,覆盖工业级温度要求,可用于户外、车载等复杂环境。

三、封装与工艺特性

  • 封装规格:采用1206英制封装(对应公制3216,尺寸3.2mm×1.6mm),是贴片电阻主流封装之一,体积紧凑,适合高密度PCB布局,兼容常规SMT生产工艺;
  • 厚膜工艺:以陶瓷基底为载体,通过丝网印刷厚膜电阻浆料、高温烧结形成电阻层,再经电极制作与封装完成。相比薄膜电阻,厚膜工艺成本更低,且耐过负载能力、机械稳定性更优,适合批量应用。

四、典型应用场景

该电阻因高阻值、常规功率的特性,广泛应用于以下场景:

  1. 信号衰减电路:射频、模拟信号链路中作为分压电阻,衰减信号强度以匹配后级电路输入范围,避免过载;
  2. 电源监控电路:配合运放、ADC实现电压检测与过压/欠压保护,用于电源状态实时监控;
  3. 高阻输入前端:示波器探头、传感器信号调理模块的偏置电路,以高阻值减少对信号源的负载影响,保证信号完整性;
  4. 工业控制模块:PLC、传感器节点中作为电阻网络的一部分,实现信号滤波、电平转换;
  5. 消费电子:智能家居设备、小型家电的电源分压、信号滤波等低功耗场景,满足基础功能需求。

五、可靠性与环境适应性

  • 负载可靠性:额定功率下长期工作,1000小时负载寿命试验阻值漂移≤±1%,符合KOA工业级标准;
  • 宽温稳定性:-55℃至+155℃范围内,温度系数±400ppm/℃,阻值漂移不影响多数电路功能;
  • 环境耐受性:耐湿度(符合IEC 60068-2-67湿负荷试验)、抗机械振动(符合IPC-9701标准),适合复杂工况。

六、选型与使用注意事项

  1. 降额使用:实际工作功率建议不超过额定值的80%(即200mW),避免长期过载导致阻值漂移;
  2. 电压控制:实际电路电压需≤200V,脉冲电压需评估功率与电压限值;
  3. PCB设计:焊盘尺寸符合IPC-A-610标准(长1.82.0mm、宽1.21.4mm),确保焊接可靠性;
  4. 存储条件:常温(1535℃)、干燥(相对湿度40%60%)环境存储,避免受潮影响焊接;
  5. 替换验证:替换时需确认阻值、精度、功率、封装、温度系数完全匹配,避免性能不达标。

该电阻以成熟工艺与平衡的性能参数,成为中低功率高阻电路的实用选择,适配多数常规电子设计需求。

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