WMSIC Electronic Components

RALEC RTT051802FTP

ModelRTT051802FTP
Package0805
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 RTT051802FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT051802FTP
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
18kΩ
Electronic Component
1
Electronic Component
BM0265746255
Operating Temperature
55℃~+155℃
Operating Voltage
150V
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.

RTT051802FTP 厚膜贴片电阻产品概述

RTT051802FTP是台湾旺诠(RALEC)推出的一款常规功率型厚膜贴片电阻,采用0805(2012公制)封装,以高性价比和稳定性能适配多数电子电路的基础阻抗需求,是消费电子、工业控制等领域的常用元件。

一、产品基本定位与品牌背景

旺诠(RALEC)作为全球知名被动元件制造商,专注电阻、电感研发生产近30年,其厚膜贴片电阻系列以量产一致性好、成本可控为核心优势。RTT051802FTP属于该品牌常规功率电阻产品线,定位为小体积、中精度、宽温范围的通用贴片电阻,可替代多数同规格竞品,满足低功耗至中等功率电路的阻抗匹配、分压限流等基础功能。

二、核心性能参数详解

该电阻的关键参数明确了应用边界,具体如下:

  • 阻值与精度:标称阻值18kΩ,精度±1%——满足一般精密电路需求(如分压网络、信号衰减),无需额外校准即可实现稳定阻抗输出;
  • 额定功率:125mW(0805封装常规功率等级)——适用于小信号电路(传感器接口、通信链路)或低功耗电源支路,高温环境需配合功率降额;
  • 最大工作电压:150V——电路设计需确保电压不超此值,避免击穿失效;
  • 温度系数(TCR):±100ppm/℃——温度每变化1℃,阻值变化0.01%。以25℃→155℃为例,阻值最大变化量约234Ω,适合对温漂要求不高的场景;
  • 工作温度范围:-55℃~+155℃——覆盖工业级环境(户外设备、车载辅助系统),但155℃时需按旺诠规格降额至80%额定功率(即100mW)。

三、封装与工艺特性

  • 封装尺寸:0805(英制)/2012(公制)——体积仅2.0mm×1.2mm,显著节省PCB空间,适配高密度贴装;
  • 制造工艺:厚膜印刷烧结——采用陶瓷基板+厚膜电阻浆料,经丝网印刷、高温烧结成型,成本低且抗过载能力强;
  • 端接设计:镍钯金(NiPdAu)或镍锡(NiSn)端接——保证焊接可靠性,耐回流焊/波峰焊高温(峰值240~250℃,焊接时间≤10秒),不易虚焊脱落。

四、典型应用场景

结合参数特性,RTT051802FTP的常见应用包括:

  1. 消费电子:手机/平板电源管理(电池分压、LED背光限流)、音频电路滤波;
  2. 工业控制:小型PLC、传感器接口(温度传感器信号调理)、低压电机辅助电路;
  3. 通信设备:路由器/小型基站信号链路阻抗匹配、电源滤波网络;
  4. 汽车电子:仪表盘背光控制、车门传感器接口(若符合AEC-Q200车规,可拓展至更多车载场景)。

五、可靠性与使用注意事项

为确保性能稳定,需注意:

  • 焊接工艺:优先回流焊,避免手工焊接温度≥300℃(易损坏电阻);
  • 功率降额:环境温度>125℃时,按旺诠降额曲线降低功率(如155℃时≤100mW);
  • 存储条件:常温干燥(25±5℃、湿度<60%),避免受潮(厚膜电阻受潮可能导致阻值漂移);
  • 应用限制:因精度和温漂特性,不适合医疗设备、精密测量仪器等对阻值要求极高的场景。

综上,RTT051802FTP是一款性能均衡、成本可控的通用厚膜贴片电阻,以0805小封装实现宽温范围与中精度输出,可满足多数电子设备的基础阻抗需求,是设计选型的高性价比选择。

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