WMSIC Electronic Components

RALEC RTA03-4D330JTP RTA03

ModelRTA03-4D330JTP
Package1206
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 RTA03-4D330JTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTA03-4D330JTP
Electronic Component
1
Package
1206
Electronic Component
Resistor Array
Electronic Component
±5%
Electronic Component
0.03g
Electronic Component
33Ω
Electronic Component
8
Electronic Component
1
Electronic Component
BM0265114407
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 RTA03-4D330JTP 排阻产品概述

一、产品基本定位与型号解析

RALEC RTA03-4D330JTP是一款4位薄膜排阻,专为小型化电子电路设计,集成4个独立电阻于1206封装内,兼具高密度集成与稳定性能。其型号各部分含义清晰:

  • RTA03:RALEC小型排阻系列代号;
  • 4D:集成4个独立电阻;
  • 330:单颗电阻阻值为33Ω(前两位为有效数,第三位为倍率×10⁰);
  • J:精度代码(±5%);
  • TP:对应1206封装规格。

该产品属于低功耗排阻,单颗额定功率62.5mW,可满足大多数便携式、小型电子设备的功率需求。

二、核心性能参数详解

1. 阻值与精度

单颗阻值33Ω,精度±5%(J档),无需额外校准即可满足常规电路功能需求,适合分压、上拉等对精度要求不苛刻的场景;若需更高精度,可升级至F档(±1%)。

2. 功率特性

单颗额定功率62.5mW,1206封装散热性能良好。实际使用建议降额至80%(即50mW以内),可有效避免过热老化,延长产品寿命。

3. 温度稳定性

温度系数±200ppm/℃,意味着温度每变化1℃,阻值漂移约0.0066Ω;工作温度范围-55℃~125℃,宽温环境下阻值稳定性优异,适合工业控制、车载等场景。

4. 引脚配置

8引脚设计,4个电阻分别对应独立引脚(每电阻2脚),便于电路灵活连接:可单独使用某几个电阻,或通过引脚组合实现串联、并联,适配多样化电路需求。

三、封装与物理特性

该产品采用1206封装(英制尺寸:3.2mm×1.6mm),内部集成4个0603尺寸(1.6mm×0.8mm)的薄膜电阻,相比分散焊接4个0603电阻:

  • 节省约60%的PCB面积,适配高密度设计;
  • 减少焊接点数量,降低虚焊风险;
  • 引脚材质为镀锡铜,兼容回流焊、波峰焊等主流工艺,焊接兼容性好。

四、品牌与可靠性保障

RALEC(旺诠)是全球知名被动元件制造商,拥有30+年电阻生产经验,产品通过ISO9001、ISO14001认证,符合RoHS 2.0、REACH等环保标准。

RTA03系列采用真空镀膜工艺制备薄膜电阻,相比碳膜电阻具有:

  • 低噪声(典型值< -40dB);
  • 低漂移(长期稳定性优于0.1%/1000小时);
  • 抗老化(平均故障间隔时间MTBF达10⁶小时以上)等优势,可靠性远超普通排阻。

五、典型应用场景

1. 单片机IO口上拉/下拉

如STM32、51单片机的4路GPIO口需上拉电阻,使用该排阻可一次性完成配置,简化电路布线(避免4个分散电阻的焊接与布线)。

2. ADC输入分压网络

若需将05V信号分压至01V供ADC采集,33Ω电阻可与其他阻值电阻组成分压电路;4位排阻便于多路信号(如温度、湿度、压力)同时处理。

3. 便携式设备电源滤波

在蓝牙耳机、智能手环等低功耗设备中,RC滤波电路的电阻阵列可采用该排阻,减少元件体积,适配设备小型化需求。

4. LED数码管驱动

4位排阻可作为数码管段码的限流电阻(每个段对应1个电阻),降低布线复杂度,适合小型显示模块(如电子时钟、计数器)。

5. 工业传感器信号调理

如温度传感器的差分放大电路中,4个33Ω电阻可组成反馈网络,提高信号稳定性,适配工业控制场景。

六、选型与使用注意事项

  1. 功率验证:实际电路需计算单颗电阻功耗,若超过50mW(降额后),需更换更高功率排阻(如RALEC RTA05系列,单颗125mW);
  2. 温度范围:若环境温度超出-55℃125℃,需选择宽温型排阻(如RALEC高温系列,工作温度-55℃155℃);
  3. 焊接工艺:回流焊峰值温度需控制在245℃±5℃,时间不超过10秒,避免高温损伤薄膜电阻;
  4. 静电防护:薄膜电阻易受静电损伤,焊接/存储需采用防静电工作台、防静电包装。

总结

RALEC RTA03-4D330JTP凭借高密度集成、稳定性能、高可靠性,成为小型化电子设计中4位排阻的优选方案,覆盖消费电子、工业控制、便携式设备等多场景,可有效简化电路设计、降低成本并提升产品竞争力。

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