WMSIC Electronic Components

KOA RK73B1ETTP754J

ModelRK73B1ETTP754J
Package0402
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73B1ETTP754J
Type
KOA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73B1ETTP754J
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.011g
Electronic Component
750kΩ
Electronic Component
1
Electronic Component
BM0264517941
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±200ppm/℃

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

RK73B1ETTP754J 厚膜贴片电阻产品概述

一、产品基本信息

RK73B1ETTP754J是日本KOA公司推出的通用型厚膜贴片电阻,属于该品牌经典的RK73B系列。其核心定位为微型化、高可靠性的基础电路元件,适配各类小型化电子系统的信号调理、分压、滤波等需求。

  • 品牌与系列:KOA RK73B系列(厚膜贴片电阻通用线);
  • 封装规格:0402英制(对应1005公制),尺寸约0.4mm×0.2mm×0.15mm,重量仅0.1mg;
  • 型号编码解析:
    • RK73B:系列标识;
    • 1ETTP:封装/功率规格(0402封装、100mW功率);
    • 754:阻值代码(75×10⁴=750kΩ);
    • J:精度等级(±5%公差)。

二、核心性能参数

该产品参数严格遵循工业级设计标准,关键指标如下:

指标 规格值 说明 标称阻值 750kΩ 代码754(75×10⁴) 精度公差 ±5%(J档) 通用电路适配 额定功率 100mW 0402封装典型功率 最大工作电压 75V 需同时满足P=V²/R(75V时功率≈7.5mW) 温度系数(TCR) ±200ppm/℃ -55℃~+155℃范围内阻值漂移≤0.02%/℃ 工作温度范围 -55℃~+155℃ 覆盖极端环境(汽车/工业场景) 封装类型 0402(1005公制) 微型化高密度布局适配

三、设计特点与优势

基于KOA成熟的厚膜工艺,该产品具备以下核心优势:

1. 小型化适配高密度设计

0402微型封装可将PCB占用面积减少60%以上,适合智能手机、智能手表、物联网传感器等对体积要求严苛的产品,支持多层PCB高密度布线。

2. 厚膜工艺稳定可靠

采用丝网印刷+高温烧结工艺制造,相比薄膜电阻更耐机械冲击、高温老化,长期使用阻值漂移小(1000小时漂移≤0.5%)。

3. 宽温范围适应恶劣环境

-55℃+155℃的工作温度覆盖汽车发动机舱(-40℃+125℃)、工业现场(-20℃~+85℃)等极端场景,无需额外降额设计。

4. 通用性能覆盖多场景

±5%精度、100mW功率、75V电压的组合,可满足90%以上通用电路需求(如电源滤波、信号分压、偏置电路),无需额外选型成本。

5. 环保兼容现代制造

采用符合RoHS2.0、REACH标准的无铅锡膏封装,适配无铅回流焊(220℃~245℃)与波峰焊工艺,焊接良率≥99.9%。

四、典型应用场景

该产品因性能均衡、体积小巧,广泛应用于以下领域:

1. 消费电子

  • 智能手机:射频前级信号调理、电池管理系统分压;
  • 智能穿戴:智能手表传感器偏置、蓝牙耳机电源滤波;
  • 智能家居:智能门锁信号转换、温湿度传感器信号放大。

2. 工业控制

  • 小型PLC:输入输出信号分压、数字量输出限流;
  • 工业传感器:压力/温度传感器信号放大偏置;
  • 电机驱动:微型伺服电机电流采样电阻。

3. 汽车电子

  • 辅助驾驶:毫米波雷达信号调理、摄像头模块偏置;
  • 车载系统:胎压监测传感器信号转换、车载音响滤波网络。

4. 通信设备

  • 5G基站:小型模块电源滤波、光纤收发器信号调理;
  • 物联网网关:传感器接口信号分压、低功耗通信模块偏置。

五、可靠性与环境适应性

RK73B1ETTP754J通过多项国际标准测试,保障长期稳定运行:

  1. 功率降额要求:高温环境需降额(125℃时80mW,155℃时50mW),寿命符合MTBF≥10⁶小时;
  2. 环境测试:通过IEC 60068-2-67(湿热)、IEC 60068-2-27(振动)、IEC 60068-2-32(冲击)标准;
  3. 焊接兼容性:回流焊后无开路/短路,焊点剪切强度≥15N;
  4. 长期稳定性:额定条件下工作1000小时,阻值漂移≤0.5%,电压系数≤0.01%/V。

该产品凭借体积小、性能稳、适配广的特点,成为消费电子、工业控制、汽车电子等领域的高性价比选择,可满足多数通用电路的基础电阻需求。

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