WMSIC Electronic Components

RALEC RTA02-4D201JTH RTA02

ModelRTA02-4D201JTH
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 RTA02-4D201JTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTA02-4D201JTH
Electronic Component
1
Package
SMD,2x1mm
Electronic Component
Resistor Array
Electronic Component
±5%
Electronic Component
0.012g
Electronic Component
200Ω
Electronic Component
8
Electronic Component
1
Electronic Component
BM0266078512
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 RTA02-4D201JTH 贴片排阻产品概述

一、产品定位与核心特征

RALEC(旺诠)RTA02-4D201JTH是一款4位通用型贴片排阻,集成4个独立电阻于紧凑封装内,专为低功率、高密度PCB设计场景打造。其核心特征可概括为:体积迷你、功率适配小电流电路、精度适中、温度稳定性良好,是消费电子、小型工业设备等领域的基础被动元件选择。

二、关键参数详细解析

该排阻的核心参数直接决定其适用场景,具体解读如下:

  1. 阻值与精度:单电阻阻值为200Ω(代码“201”表示20×10¹),精度等级为±5%(标识“J”),满足大多数非高精度电路的阻抗匹配需求,无需额外校准即可稳定工作。
  2. 功率容量:单个电阻额定功率为62.5mW(0.0625W),因排阻内部为独立电阻,实际使用时需注意单电阻的功率降额(建议按50%降额,即单电阻工作功率不超过31.25mW),避免过热损坏。
  3. 温度系数:±200ppm/℃,表示温度每变化1℃,阻值变化量为200×10⁻⁶×200Ω=0.04Ω,温度稳定性处于通用型排阻的中等偏上水平,可适应-55℃至125℃的典型工作温度范围(行业通用规格,适配大部分应用环境)。
  4. 引脚与数量:8脚贴片封装,符合4位排阻的标准引脚布局(通常1脚为公共端,2-5脚为4个电阻的独立输出端,6-8脚为冗余或接地端,具体需参考 datasheet),便于PCB布线和电路集成。

三、封装与物理特性

该排阻采用SMD 2×1mm封装(标注“0402×4”,即每个集成电阻为0402封装尺寸),体积仅为常规单电阻的4倍左右,但可替代4个独立0402电阻,大幅节省PCB空间,尤其适合智能手机、智能穿戴等对体积要求严苛的产品。 封装材质为耐高温陶瓷基,焊接兼容性良好,支持回流焊、波峰焊等标准贴片工艺,无铅环保(符合RoHS 2.0标准),适配现代电子制造的环保要求。

四、典型应用场景

因参数特性适配低功率、小体积需求,RTA02-4D201JTH的典型应用场景包括:

  1. 消费电子终端:智能手机、平板的按键矩阵电路(4个电阻分别对应不同按键的上拉/下拉阻抗)、LED状态指示灯驱动(低电流限流)、音频接口阻抗匹配。
  2. 小型家电与遥控器:电视遥控器、空调遥控器的按键电路、小家电(如加湿器、台灯)的控制板低功耗电路。
  3. 工业控制与物联网设备:小型传感器节点的信号调理电路、低功率MCU的I/O口上拉电阻、小型PLC的辅助控制电路。
  4. 汽车电子辅助电路:车载USB接口的过流保护限流、仪表盘状态指示灯驱动(需确认工作温度是否匹配汽车级要求,部分场景需选型汽车级 variant)。

五、品牌与可靠性保障

RALEC(旺诠)是台湾老牌被动元件制造商,专注电阻研发生产超过30年,产品通过ISO 9001、IATF 16949(汽车级)等认证,RTA02-4D201JTH的可靠性体现在:

  • 电阻膜层采用厚膜工艺,阻值稳定性经长期老化测试;
  • 封装密封性良好,可抵抗潮湿、粉尘等环境影响;
  • 引脚抗弯折性能符合行业标准,减少焊接后引脚断裂风险。

六、选型与使用注意事项

  1. 功率降额:必须严格控制单电阻的工作功率,避免超过31.25mW(50%降额),若电路电流较大,需重新选型更高功率的排阻。
  2. 精度匹配:±5%精度适用于非高精度场景,若需阻抗匹配精度≥±1%,需更换为F级(±1%)的排阻。
  3. 焊接工艺:回流焊温度需控制在230-260℃(峰值),避免温度过高损坏电阻膜层;波峰焊需采用无铅焊料,焊接时间不超过3秒。
  4. 引脚布局:PCB设计时需确认公共端引脚(通常为1脚),避免电路连接错误导致功能异常。

综上,RTA02-4D201JTH凭借紧凑体积、稳定性能与亲民成本,成为中小功率电子设备的理想排阻选择,适配多种主流应用场景的基础阻抗需求。

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