WMSIC Electronic Components

TA-I Technology RMS04FT1803

ModelRMS04FT1803
Package0402
BrandElectronic Component
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 66623

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
RMS04FT1803
Type
TA-I Technology
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RMS04FT1803
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
180kΩ
Electronic Component
10
Electronic Component
BM0265635398
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

大毅科技RMS04FT1803厚膜贴片电阻产品概述

一、产品基本定位与型号解析

RMS04FT1803是大毅科技推出的0402封装厚膜贴片电阻,属于小型化、高集成度的被动元件,适配对尺寸紧凑性、电气稳定性有要求的各类电子电路。型号字符可辅助理解核心特征:

  • “RMS”为大毅厚膜电阻系列标识;
  • “04”对应英制0402封装(公制1.0mm×0.5mm);
  • “FT”代表常规精度等级;
  • “1803”为阻值代码(前三位180×10³Ω=180kΩ)。

二、核心电气参数详解

该电阻的关键参数明确,可支撑不同场景设计需求:

  1. 阻值与精度:标称180kΩ,精度±1%——阻值偏差≤1.8kΩ,满足模拟电路(分压、信号调理)对准确性的基本要求,无需额外校准即可稳定输出;
  2. 功率与电压额定值:最大耗散功率62.5mW,额定工作电压50V——需注意电压限制更严格(50V下功耗≈13.9mW,远低于额定功率),过压易导致电阻老化失效;
  3. 温度系数(TCR):±100ppm/℃——温度每变1℃,阻值变化±0.018Ω;在-55℃~+155℃温区内,最大阻值变化≤±3.78kΩ,满足工业/车载场景的温度稳定性;
  4. 工作温度范围:-55℃+155℃——覆盖工业级(-40℃+85℃)、汽车级(-40℃~+125℃),甚至可用于发动机舱、高温工业设备等极端场景。

三、封装与物理特性

0402封装是该电阻的核心物理优势:

  • 尺寸小巧:公制1.0mm×0.5mm×0.35mm(典型厚),比0603封装体积缩小60%,大幅提升PCB元件密度,适配智能手机、智能穿戴等空间严苛产品;
  • 厚膜工艺优势:采用陶瓷基体+厚膜印刷工艺,成本低于薄膜电阻,且抗浪涌能力优于薄膜(适合批量生产);
  • 焊接兼容性:无铅焊盘适配回流焊、波峰焊,符合RoHS环保要求,可直接用于现代SMT生产线。

四、可靠性与环境适应性

大毅科技的工艺保障该电阻的长期稳定性:

  • 宽温区可靠性:经测试,155℃高温存储2000小时后,阻值变化≤±1%;温度循环(-55℃~+155℃)后TCR无明显漂移;
  • 抗环境干扰:陶瓷基体防潮防腐蚀,湿度≤95%RH环境下长期工作,阻值变化≤±0.5%;
  • 机械可靠性:焊点强度符合IEC 60068-2-20(振动)、IEC 60068-2-27(冲击)标准,可承受汽车振动、工业设备冲击。

五、典型应用场景

基于参数特性,该电阻适用于以下场景:

  • 消费电子:智能手机电源管理(DC-DC反馈分压)、音频电路(信号衰减);
  • 汽车电子:车载中控传感器调理、车身控制模块(BCM)信号回路;
  • 工业控制:PLC模拟量输入、电机驱动电流采样;
  • 通信设备:5G小基站射频辅助电路、路由器电源滤波;
  • 智能家居:智能音箱/门锁低功耗控制(阻值稳定保证信号一致性)。

该电阻以“小型化+宽温稳定+成本可控”为核心优势,可覆盖多数中低端电子设备的常规电阻需求,是批量应用的高性价比选择。

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