WMSIC Electronic Components

RALEC RTT025112FTH

ModelRTT025112FTH
Package0402
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+

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Technical data

Product details

13 specifications

Core information

Product name
RALEC RTT025112FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT025112FTH
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
10
Electronic Component
BM0265746269
Electronic Component
Electronic Component
Electronic Component
10000

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

RTT025112FTH 贴片厚膜电阻产品概述

一、产品基本定位

RTT025112FTH是台湾旺诠(RALEC)推出的0402封装贴片厚膜电阻,属于小功率高精度系列。该产品针对高密度PCB设计优化,兼顾成本与性能稳定性,核心适配消费电子、工业控制、汽车电子等领域的常规信号调理及小功率分配场景,是替代部分薄膜电阻降低成本的高性价比选择。

二、核心性能参数详解

该电阻的关键参数围绕“小体积、高精度、宽温宽”设计,具体特性如下:

  1. 阻值与精度:标称阻值51.1kΩ,精度±1%,满足工业级电路对阻值一致性的基本要求,可直接用于无需超高精度的信号放大、分压等场景;
  2. 功率与电压:额定功率62.5mW,额定工作电压50V。实际使用中需注意功率降额(建议不超过40-50mW),避免过载导致阻值漂移或损坏;
  3. 温度特性:温度系数(TCR)±100ppm/℃,即温度每变化1℃,阻值变化±51.1mΩ;工作温度范围-55℃~+155℃,覆盖汽车、工业等极端环境的长期稳定运行需求;
  4. 封装尺寸:0402封装(英制0.04″×0.02″,公制1.0mm×0.5mm),体积小巧,可显著提升PCB集成度,适配便携设备轻量化设计。

三、封装与制造工艺

3.1 0402封装特点

0402封装是贴片电阻的主流小封装之一,具备三大优势:

  • 体积紧凑:相比0603封装体积减少约60%,适合高密度PCB布局;
  • 重量轻:单颗重量约0.005g,适配智能穿戴、手机等便携设备的轻量化需求;
  • 工艺兼容:支持回流焊、波峰焊等常规贴片工艺,生产良率稳定。

3.2 厚膜工艺优势

采用厚膜丝网印刷烧结工艺,与薄膜电阻相比:

  • 成本更低:无需真空镀膜等复杂制程,批量生产效率高;
  • 稳定性强:厚膜层与氧化铝陶瓷基板结合牢固,抗机械应力能力优于薄膜电阻;
  • 抗浪涌:厚膜电阻的浪涌承受能力略高,适合瞬态电压变化的场景(如电源滤波)。

四、典型应用场景

RTT025112FTH的参数特性使其适配多种场景:

  1. 消费电子:手机、平板、智能手表的音频前置放大电路、射频匹配网络(如WiFi模块的信号滤波);
  2. 工业控制:PLC、传感器信号调理模块(如温度传感器的分压电路,依赖宽温宽性能);
  3. 汽车电子:车载中控、胎压监测、温度传感器的辅助电路(符合-55℃~155℃温宽要求);
  4. 通信设备:基站射频单元的偏置电路、光模块的信号分配电路(小体积适配高密度设计)。

五、品牌与可靠性说明

RALEC(旺诠)是全球知名被动元件制造商,专注电阻研发30余年,RTT025112FTH具备可靠的质量保障:

  • 环保认证:符合RoHS 2.0、REACH等国际标准,无铅无镉,适配全球市场;
  • 长期稳定:阻值漂移率低于0.1%/1000小时,满足工业设备、汽车电子的长期使用需求;
  • 认证齐全:通过ISO 9001、IATF 16949(汽车级)认证,产品一致性达行业领先水平。

六、选型与使用注意事项

  1. 功率降额:实际工作功率建议不超过额定功率的80%(即50mW),避免高温加速老化;
  2. 电压限制:绝对不能超过50V额定工作电压,否则可能导致电阻击穿;
  3. 焊接工艺:回流焊峰值温度需控制在245℃±5℃,时间≤10秒,避免过热损坏封装;
  4. 存储条件:存储于温度-20℃~+40℃、湿度≤60%的干燥环境,开封后建议12个月内使用完毕。

该产品以平衡的性能与成本优势,成为中低端电子设备的理想电阻选型,可满足多数常规电路的稳定运行需求。

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