WMSIC Electronic Components

RALEC RTA02-4D220JTH RTA02

ModelRTA02-4D220JTH
PackageSMD,2x1mm
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 RTA02-4D220JTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTA02-4D220JTH
Electronic Component
1
Package
SMD,2x1mm
Electronic Component
Resistor Array
Electronic Component
±5%
Electronic Component
0.012g
Electronic Component
22Ω
Electronic Component
8
Electronic Component
1
Electronic Component
BM0265114408
Electronic Component
±200ppm/℃
Resistor
4
Power
62.5mW
Electronic Component
Electronic Component

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

RALEC RTA02-4D220JTH 4联排阻产品概述

一、产品核心定位与基础特征

RALEC RTA02-4D220JTH是一款4联表面贴装排阻,专为高密度、小型化电子电路设计。它将4个独立电阻集成在一个紧凑的SMD封装内,既节省PCB空间,又能简化电路布局(减少焊接点与布线复杂度)。核心基础参数清晰:标称阻值22Ω,精度±5%,单个电阻额定功率62.5mW,温度系数±200ppm/℃,采用8引脚封装,适配自动化SMT生产流程。

二、电气性能参数详细说明

  1. 阻值与精度:标称阻值22Ω,精度等级为±5%(行业常用J级精度),批量应用中阻值一致性较好,无需额外筛选即可满足多数常规电路需求。
  2. 功率承载能力:单个电阻额定功率62.5mW,4个电阻总功率250mW,适合低功率信号处理、小型负载驱动等场景(单个电阻工作在额定功率下长期稳定性有保障)。
  3. 温度特性:温度系数±200ppm/℃,环境温度偏离25℃基准时,阻值变化量为:22Ω×200×10⁻⁶×ΔT=0.0044Ω×ΔT。例如温度升高10℃,阻值仅增加0.044Ω,对多数电路影响可忽略。
  4. 集成度设计:8引脚对应4个独立电阻(每个2引脚),封装内电阻排列紧凑,避免离散0402电阻的布局分散问题,尤其适合PCB尺寸严格的产品。

三、封装与机械结构设计

  1. 封装规格:SMD表面贴装封装,尺寸为2×1mm(即“0402×4”,相当于4个0402电阻的集成封装),比离散0402电阻总占用空间小30%以上,显著提升PCB布局密度。
  2. 工艺可靠性:采用陶瓷基片+厚膜电阻技术(RALEC主流工艺),封装抗机械应力、耐温变能力强,适配回流焊、波峰焊等SMT工艺,焊接后引脚与PCB结合牢固,不易虚焊。
  3. 引脚布局:8引脚呈双排排列(符合行业标准),引脚间距兼容多数SMT贴片机吸嘴与贴装程序,可直接导入量产流程。

四、典型应用场景分析

这款排阻因体积小、功率匹配、集成度高,广泛适用于以下场景:

  1. 便携式消费电子:手机、智能手表、蓝牙耳机的信号分压、LED指示灯限流(小功率LED)、按键电路滤波。
  2. 物联网终端:传感器节点(温湿度/运动传感器)的信号调理电路,集成4个电阻简化传感器与MCU接口设计。
  3. 小型家电控制板:智能插座、小型加湿器的控制电路,低功率信号处理与驱动。
  4. 汽车电子辅助模块:车载USB接口过流保护分压、仪表盘指示灯驱动(适配低功率车规场景)。
  5. 工业控制小模块:小型PLC输入输出接口滤波、模拟信号调理。

五、品牌可靠性与合规性

RALEC(旺诠)是全球知名电阻制造商,产品具备以下优势:

  1. 环保合规:符合RoHS 2.0、REACH等国际法规,无铅无镉,适配绿色电子产品生产。
  2. 可靠性测试:经过高低温循环(-55℃~125℃)、湿度测试(85℃/85%RH)、机械振动测试,长期稳定性有保障(测试数据可参考官方datasheet)。
  3. 量产一致性:自动化生产工艺确保批量产品阻值、功率等参数一致性高,适合大规模量产需求。

综上,RALEC RTA02-4D220JTH是一款高性价比的4联排阻,能有效满足小型化电子电路的集成化、高密度设计需求,是消费电子、物联网等领域的常用选择。

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