WMSIC Electronic Components

TA-I Technology RMS12FT4703

ModelRMS12FT4703
Package1206
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RMS12FT4703
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RMS12FT4703
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
470kΩ
Electronic Component
1
Electronic Component
BM0265676245
Operating Temperature
55℃~+155℃
Operating Voltage
200V
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.

RMS12FT4703 厚膜贴片电阻产品概述

一、产品基本属性与型号解析

RMS12FT4703是大毅科技推出的通用厚膜贴片电阻,属于该品牌中低功率电阻系列的核心型号。从型号命名可直观拆解核心特征:

  • "RMS"为大毅厚膜电阻系列标识,代表标准工业级厚膜工艺;
  • "12"对应1206封装(英制0.12英寸×0.06英寸,公制3.2mm×1.6mm);
  • "F"明确阻值精度等级为±1%;
  • "T4703"中"4703"为阻值编码(470×10³Ω=470kΩ),"T"为系列细分标识。
    该电阻采用厚膜丝网印刷工艺,兼顾成本与性能稳定性,适配多数常规电子电路需求。

二、关键电气性能参数

RMS12FT4703的核心电气参数可满足通用电路的精度与功率要求:

  1. 阻值与精度:额定阻值470kΩ,精度±1%,可满足信号分压、滤波电路对阻值一致性的基础要求,避免因阻值偏差导致输出波动;
  2. 功率与电压:额定功率250mW,最大工作电压200V(经计算,200V下通过电流约0.425mA,实际功耗仅85mW,电压与功率性能匹配可靠,无过载风险);
  3. 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±47Ω。在宽温范围内,阻值漂移可控,可适应温度波动较大的工作环境。

三、封装与物理特性

该电阻采用1206贴片封装,是SMT(表面贴装技术)常用封装之一,具有以下物理优势:

  • 体积小巧(典型尺寸3.2mm×1.6mm×0.5mm),可有效节省PCB空间,适配高密度电路设计;
  • 无引线结构,适配自动化贴装设备,生产效率高,降低人工成本;
  • 符合RoHS环保标准,不含铅、镉等有害物质,满足当前电子行业环保法规要求。

四、环境适应性

RMS12FT4703的工作温度范围覆盖**-55℃至+155℃**,远超民用级(0℃~70℃)标准,属于工业级温度范围:

  • 低温端可适应严寒环境(如北方户外设备、航空航天辅助电路);
  • 高温端可耐受电子设备内部发热(如电源模块、汽车ECU);
  • 温度系数稳定,在宽温范围内阻值漂移≤±0.5%(100℃温差下),避免电路参数偏移影响功能。

五、典型应用场景

结合参数与特性,RMS12FT4703适用于以下场景:

  1. 工业控制:PLC输入输出模块的分压、滤波,传感器信号调理电路;
  2. 消费电子:手机、平板的电源反馈网络、音频电路阻抗匹配;
  3. 汽车电子:车载温度/压力传感器的信号放大电路;
  4. 通信设备:路由器、交换机的信号衰减、阻抗匹配电路;
  5. 低功率医疗设备:小型监护仪的信号处理电路(需环保与宽温适配)。

六、品牌与可靠性说明

大毅科技作为专业元器件制造商,该电阻经过严格可靠性测试:

  • 负载寿命测试:125℃+额定功率下连续工作1000小时,阻值变化率≤±0.5%;
  • 高温高湿测试:85℃/85%RH环境下240小时,性能无明显衰减;
  • 符合IEC 60115国际标准,批量一致性好,适合量产应用。

该产品以稳定性能、成本优势,成为工业、消费电子等领域的常用电阻选择。

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