WMSIC Electronic Components

TA-I Technology RMS04FT4751

ModelRMS04FT4751
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 66628

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
RMS04FT4751
Type
TA-I Technology
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RMS04FT4751
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
4.75kΩ
Electronic Component
10
Electronic Component
BM0265635399
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.

RMS04FT4751 厚膜片式电阻产品概述

这款由大毅科技推出的RMS04FT4751,是一款专为高密度、低功耗电子电路设计的0402封装厚膜片式电阻,凭借精准的阻值控制、稳定的性能表现及紧凑的体积,成为消费电子、工业控制等领域的常用元件。

一、产品核心定位与优势

RMS04FT4751聚焦小体积+高精度+宽温适应性的设计目标,针对现代电子设备“轻薄化、集成化”的趋势优化。其0402封装(公制1005)仅1.0mm×0.5mm大小,可大幅节省PCB空间;同时兼顾±1%的阻值精度与±100ppm/℃的温度系数,能在极端温度下保持稳定性能,适合对空间和可靠性有双重要求的场景。

二、关键参数深度解析

1. 阻值与精度

阻值为4.75kΩ,采用四位代码标识(4751)——前三位“475”为有效数字,第四位“1”代表倍率10¹,即475×10¹=4750Ω=4.75kΩ。±1%的精度满足绝大多数通用电路需求,无需额外校准即可用于信号调理、电源反馈等对精度敏感的模块。

2. 功率与电压规格

额定功率为1/16W(62.5mW),是0402封装电阻的常规功率等级;最大工作电压50V,需注意功率与电压的匹配关系:实际使用时,电阻两端电压不应超过50V,且功耗需控制在62.5mW以内(最大电流约1.25mA),避免过载损坏。

3. 温度与环境参数

  • 温度系数:±100ppm/℃,即每升高/降低1℃,阻值变化约0.01%。例如在100℃温差下,阻值漂移仅±1%,符合工业级设备的长期稳定性要求;
  • 工作温度范围:-55℃~+155℃,覆盖了从极寒环境(如户外监测设备)到高温工况(如汽车引擎舱周边模块)的大部分场景。

三、封装与工艺特性

RMS04FT4751采用厚膜工艺制造:在陶瓷基底上印刷电阻浆料,经高温烧结形成电阻层,再覆盖保护层。相比薄膜电阻,厚膜工艺成本更低、抗过载能力更强;相比绕线电阻,体积缩小数倍,适合表面贴装(SMD)。

0402封装的物理尺寸仅1.0mm(长)×0.5mm(宽)×0.35mm(厚),适配自动贴装生产线,可提高批量生产效率,同时减少人工成本。

四、典型应用场景

结合参数特性,RMS04FT4751的常见应用包括:

  1. 消费电子:智能手机、智能手环、蓝牙耳机等轻薄设备的信号滤波、分压电路;
  2. 工业控制:PLC模块、传感器信号调理电路(如温度传感器的分压输出);
  3. IoT设备:低功耗无线模块(如WiFi/蓝牙模块)的偏置电阻、限流电阻;
  4. 汽车电子:车载小功率模块(如仪表盘背光控制、车门传感器)的辅助电路。

五、可靠性与品质保障

大毅科技作为专业元器件厂商,对RMS04FT4751的品质管控严格:

  • 出厂前经过精度分选(确保每只电阻阻值落在±1%范围内);
  • 完成温度循环测试(-55℃~155℃循环500次,阻值漂移≤0.5%);
  • 符合RoHS、REACH等环保标准,无铅无镉,适配绿色制造需求。

这款电阻凭借平衡的性能与成本优势,成为众多电子设计工程师的常规选型之一,尤其适合对空间、精度和可靠性有综合要求的场景。

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