WMSIC Electronic Components

RALEC RTT052491FTP

ModelRTT052491FTP
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RALEC RTT052491FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT052491FTP
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
2.49kΩ
Electronic Component
1
Electronic Component
BM0265143972
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.

RTT052491FTP 贴片厚膜电阻产品概述

RTT052491FTP是台湾旺诠(RALEC)推出的一款0805封装厚膜贴片电阻,针对中小功率电子电路设计,以平衡的性能、成本和可靠性成为消费电子、工业控制等领域的常用选型。

一、核心参数与实际意义

该电阻的核心参数明确了其应用边界,具体解读如下:

  • 阻值与精度:2.49kΩ(即2490Ω)±1%,属于常规精度范畴,能满足大多数对阻值偏差要求不苛刻的电路(如信号分压、滤波),无需额外校准即可稳定工作;
  • 功率等级:125mW,是0805封装的典型额定功率,适配小型化设备的低功耗需求;
  • 工作电压:150V为最大耐压上限,实际使用需同时满足功率限制(如2.49kΩ×125mW对应的电压约17.6V),耐压主要用于应对瞬间过压防护;
  • 温度系数:±100ppm/℃,即温度每变化1℃,阻值偏差±0.01%,若环境温度从25℃升至155℃,总阻值偏差约±1.3%,叠加精度后整体偏差≤±2.3%,适合一般温度环境;
  • 工作温度范围:-55℃~+155℃,覆盖工业级温度区间,可应对沙漠高温、寒冷地区低温等极端场景。

二、封装与工艺特性

  • 封装规格:0805英制封装(公制2.0×1.25mm),体积小巧,适配自动化贴片生产,适合高密度电路板设计;
  • 厚膜工艺:采用陶瓷基板印刷电阻浆料+烧结工艺,成本低于薄膜电阻,且稳定性优于碳膜电阻,表面覆盖玻璃釉保护,抗潮湿、抗机械应力能力强;
  • 焊接兼容性:符合IPC标准的焊盘设计,支持回流焊、波峰焊等常规贴片工艺,回流焊峰值温度建议240~250℃(持续时间<10秒),避免过温损坏。

三、性能优势与典型应用

1. 核心优势

  • 成本效益平衡:常规精度+厚膜工艺,比高精度薄膜电阻便宜30%以上,适合非严苛电路;
  • 宽温适应性:-55~155℃覆盖工业、汽车电子(部分场景);
  • 小体积大功率比:0805封装实现125mW功率,满足智能穿戴、IoT模块等小型设备需求;
  • 环保合规:无铅工艺符合RoHS标准,适配出口产品。

2. 典型应用场景

  • 消费电子:智能手机主板信号分压、蓝牙耳机滤波电路、智能手表传感器调理;
  • 工业控制:PLC输入输出模块、温度传感器信号放大;
  • IoT设备:低功耗传感器节点的电阻网络、无线模块偏置电路;
  • 汽车电子:车载中控辅助电路(需确认对应汽车级认证)。

四、可靠性与应用注意事项

1. 可靠性特点

  • 长期稳定性:老化率<0.5%/1000小时,持续工作10年以上阻值偏差仍可控;
  • 抗环境能力:玻璃釉保护层可抵御潮湿、灰尘侵蚀,适合户外IoT设备;
  • 机械强度:陶瓷基板封装紧凑,可承受轻微振动(如车载场景)。

2. 应用注意事项

  • 功率降额:实际使用功率建议不超过100mW(额定功率的80%),避免过热导致阻值漂移;
  • 电压限制:工作电压需同时满足“功率计算值”和“150V耐压”,取较小值(如2.49kΩ电阻长期工作电压≤17V);
  • 温度考量:若电路对阻值稳定性要求高(如精密仪表),需额外增加温度补偿电路;
  • 存储条件:开封前存储于常温干燥环境(湿度<60%),开封后建议1个月内用完,避免受潮影响焊接。

RTT052491FTP凭借成熟的工艺和平衡的参数,成为中小功率电子电路的高性价比选型,广泛适配各类消费、工业场景的常规设计需求。

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