WMSIC Electronic Components

RALEC RTA03-4D1001FTP RTA03

ModelRTA03-4D1001FTP
Package0603x4
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

13 specifications

Core information

Product name
RALEC RTA03-4D1001FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTA03-4D1001FTP
Electronic Component
1
Package
0603x4
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0265746260
Electronic Component
Electronic Component
Electronic Component
5000

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

RALEC RTA03-4D1001FTP 排阻产品概述

RALEC(旺诠)作为国内被动元件领域的资深厂商,其推出的RTA03-4D1001FTP是一款专为空间紧凑、轻载电路设计的4路集成排阻,兼顾了集成度、精度与成本优势,广泛适配消费电子、工业控制等多类场景。

一、产品核心定位与关键特性

这款排阻的核心定位是通用型中小功率集成电阻,针对需要多组相同阻值电阻且PCB空间有限的设计需求。其关键特性可总结为“四合一集成、常规精度、轻载适配”:

  • 集成4个独立电阻,无需单独贴装4颗离散电阻,大幅简化电路布局;
  • 单颗阻值1kΩ,精度±1%,满足多数信号调理、分压电路的精度要求;
  • 单颗额定功率62.5mW,适配小电流(如5V电路中≤12.5mA)的轻载场景;
  • 温度系数±200ppm/℃,常温下阻值漂移可控,稳定性优于多数经济型排阻。

二、关键参数深度解析

1. 电阻集成与阻值特性

该排阻集成4个完全独立的电阻单元,每颗阻值为1kΩ(电阻代码“1001”,即100×10¹=1000Ω)。4个电阻在封装内相互独立,可分别用于不同电路支路(如上拉、下拉、分压等),无串扰风险,适合多路相同功能的电路设计。

2. 精度与温度稳定性

  • 精度±1%:相比±5%的经济型排阻,该精度可有效降低信号传输误差,适合需要准确分压、匹配的场景(如传感器信号调理、串口上拉);
  • 温度系数±200ppm/℃:温度每变化1℃,阻值变化±0.2Ω(1kΩ×200×10⁻⁶)。以25℃为基准,若环境温度升至85℃(温差60℃),阻值最大漂移±12Ω,仍在±1%精度范围内(允许±10Ω),常温稳定性优异。

3. 功率与电流能力

单颗电阻额定功率62.5mW,结合1kΩ阻值,最大允许电流约7.9mA(I=√(P/R))。实际使用建议降额50%以上(实际功耗≤31.25mW,电流≤5.6mA),避免长期过热导致阻值漂移或寿命缩短。

三、封装与引脚配置

1. 封装设计

该排阻采用1206(英制,3216公制)表面贴装封装,单颗电阻单元为0603(0.06×0.03英寸)小封装,4个单元集成后整体尺寸仅1206,比单独贴装4颗0603电阻节省约30%的PCB面积,同时减少贴装次数,降低生产损耗。

2. 引脚布局

采用8引脚单排封装,每两个引脚对应一个独立电阻单元(共4组),引脚间距符合标准SMT工艺要求,兼容多数自动贴片机的贴装精度,无需特殊治具。

四、典型应用场景

基于其集成度、精度与功率特性,RTA03-4D1001FTP主要适配以下场景:

1. 消费电子设备

  • 按键电路分压:手机、智能音箱的功能按键,通过4组1kΩ排阻实现不同按键的分压识别,简化线路;
  • LED指示灯限流:4个小功率LED(电源、充电状态指示)的限流电阻,单颗功率可满足5V供电LED(电流≤10mA)的需求。

2. 工业控制模块

  • 传感器信号调理:温度、压力传感器的输出信号分压,±1%精度保证信号采集准确性;
  • 数字接口上拉:UART、SPI、I2C等接口的上拉电阻,4组排阻可同时为多个接口提供匹配阻值。

3. 通信设备配件

  • 电源监控分压:电源电压检测电路的分压电阻,实现过压/欠压保护的准确阈值设置;
  • 射频接口匹配:低功率射频电路的阻抗匹配(需确认频率范围适配性)。

五、品牌与可靠性保障

RALEC(旺诠)拥有30余年被动元件生产经验,产品符合RoHS 2.0、REACH等环保标准,通过IEC 60115、JIS C 5201等国际可靠性认证:

  • 焊接可靠性:可承受回流焊温度曲线(峰值260℃±5℃,时间≤10s),无开路、短路风险;
  • 寿命测试:额定条件下工作,平均无故障时间(MTBF)超10⁶小时,满足批量生产的长期稳定性需求。

六、选型与使用注意事项

  1. 功率降额:实际功耗需低于单颗额定功率的50%,避免过热;
  2. 温度范围:确认工作环境温度在-55℃~125℃范围内,高温环境需进一步降额;
  3. 焊接工艺:回流焊遵循标准温度曲线,手工焊接控制烙铁温度≤350℃、时间≤3s;
  4. 引脚识别:贴装前确认排阻引脚与PCB焊盘的对应关系,避免接反导致功能异常。

这款排阻以高集成度、常规精度与可靠性能,成为中小功率电路设计的高性价比选择,尤其适合需要简化布局、降低成本的批量生产项目。

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