WMSIC Electronic Components

RALEC RTT124701FTP

ModelRTT124701FTP
Package1210
BrandRALEC
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
RALEC RTT124701FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT124701FTP
Electronic Component
1
Package
1210
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
4.7kΩ
Electronic Component
1
Electronic Component
BM0265147819
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.

RTT124701FTP 贴片厚膜电阻产品概述

一、产品基本定位与核心特征

RTT124701FTP是旺诠(RALEC) 推出的1210封装厚膜贴片电阻,针对中功率、高精度电子电路需求设计,兼具成本优势与环境适应性。核心特征包括:采用厚膜陶瓷工艺、阻值4.7kΩ(±1%高精度)、额定功率500mW、工作电压200V、宽温范围(-55℃~+155℃)及稳定的温度系数(±100ppm/℃),适配自动化贴装与恶劣工况应用。

二、关键电气与物理参数详解

1. 阻值与精度

阻值为4.7kΩ(标识代码4701,对应“47×10¹=4700Ω”),精度达**±1%** —— 远高于普通碳膜电阻的±5%,可满足需要准确分压、限流的场景(如反馈网络、精密衰减),减少电路误差。

2. 功率与耐压

  • 额定功率:500mW(0.5W):是1210封装电阻的主流中功率规格,可支撑中等负载电路(如电源限流、小信号放大);
  • 工作电压:200V:高于多数同封装电阻(通常100V以下),适配部分高压场景(如AC-DC转换高压侧)。
    注:实际使用需遵循*降额原则——环境温度超过70℃时,功率需按曲线降低(如125℃时降额至300mW),避免过热失效。*

3. 温度特性

温度系数(TCR)为**±100ppm/℃**,即温度每变化1℃,阻值漂移±0.01%。以极限温变为例:155℃(最高工作温度)比25℃(常温)高130℃,总漂移仅±1.3%,宽温下仍能保持稳定性能,适合工业、车载等高低温场景。

4. 封装与尺寸

采用1210英制封装,对应公制尺寸为3225(长3.2mm±0.2mm,宽2.5mm±0.2mm,厚度≈0.55mm),符合IPC标准,兼容回流焊、波峰焊等自动化贴装工艺,生产效率高。

三、可靠性与工艺优势

1. 厚膜工艺核心

厚膜电阻通过“陶瓷基底印刷电阻浆料→高温烧结→环氧树脂涂层”工艺制成:

  • 陶瓷基底(氧化铝):耐高温、低膨胀,减少热应力对阻值的影响;
  • 厚膜浆料:功率密度高于碳膜,稳定性优于薄膜电阻(成本更低);
  • 环氧树脂涂层:抗潮湿、抗腐蚀,防护电路免受环境侵蚀。

2. 环境适应性

  • 工作温度:-55℃+155℃,覆盖工业级(-40℃+85℃)与部分高温场景(如烤箱控制电路);
  • 耐候性:通过湿热试验(85℃/85%RH,1000小时),阻值变化≤1%,可靠性符合IEC 60115标准。

四、典型应用场景

RTT124701FTP因“高精度+中功率+宽温”特性,广泛用于以下领域:

  1. 电源电路:DC-DC转换器分压反馈、线性电源限流电阻、AC-DC整流后滤波RC网络;
  2. 信号调理:运算放大器(运放)反馈网络、滤波器(RC低通/高通)、传感器信号衰减;
  3. 工业控制:PLC输入输出模块、电机驱动电路、温度传感器接口;
  4. 消费电子:智能家居设备(如智能灯控制)、小型家电(如电饭煲温控)、音频设备(如耳机放大器);
  5. 通信设备:小型基站、路由器的信号衰减电阻、电源模块分压。

五、品牌与品质保障

旺诠(RALEC)是台湾老牌被动元件制造商,专注电阻研发30余年,产品通过:

  • 国际认证:ISO 9001(质量管理)、ISO 14001(环境管理)、RoHS(无铅);
  • 品质管控:每批次抽样检测阻值精度、温度系数、功率负载能力,一致性≥99.5%;
  • 技术支持:提供详细 datasheet、应用设计指南,协助客户优化电路方案。

该产品平衡了性能与成本,是中功率高精度电路的高性价比选择。

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