WMSIC Electronic Components

RALEC RTT06R020FTP

ModelRTT06R020FTP
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

13 specifications

Core information

Product name
RALEC RTT06R020FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT06R020FTP
Electronic Component
1
Package
1206
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0265966508
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.

RTT06R020FTP 贴片厚膜电阻产品概述

RTT06R020FTP是台湾旺诠(RALEC)推出的1206封装厚膜贴片电阻,专为低阻值、中小功率场景设计,核心定位是满足工业控制、消费电子、电源管理等领域的电流检测、分压及负载需求。产品以稳定的厚膜工艺为基础,结合精准的阻值控制与合理的功率设计,成为中小功率低阻应用的高性价比选择。

一、产品核心特性总结

该电阻的核心优势可概括为「低阻精准、中小功率适配、工业级环境耐受」:

  • 低阻值(20mΩ)+ 高精度(±1%):精准匹配电流检测等需低阻信号采集的场景;
  • 1206封装:适配主流SMT自动化生产,尺寸紧凑;
  • 宽温工作:-55℃~+155℃覆盖工业级与部分汽车级温度范围;
  • 环保合规:符合RoHS、REACH等全球环保标准,无铅焊接兼容。

二、关键参数详细说明

1. 阻值与精度

阻值为20mΩ(毫欧),属于低阻范畴(通常<100mΩ为低阻),适合电流感测中「小电压降采集大电流」的设计(如I=V/R,20mΩ电阻上100mV压降对应电流5A)。精度±1%,即阻值波动范围为19.8mΩ~20.2mΩ,满足大多数工业/消费电子的精度需求,无需额外校准即可实现基础电流检测。

2. 功率与电压

  • 额定功率:333mW(0.333W),需注意功率与电流的关联:根据P=I²R,最大允许电流I=√(P/R)=√(0.333/0.02)≈4.1A(需结合实际散热条件,若环境温度高于25℃需降额使用);
  • 工作电压:150V,指电阻两端允许施加的最大直流/交流电压,实际使用中需同时满足「电压≤150V」与「功率≤333mW」两个条件(如150V时电流I=150V/20mΩ=7.5A,远超功率允许的4.1A,因此实际最大电流以功率限制为准)。

3. 温度系数与温宽

  • 温度系数(TCR):±1200ppm/℃,表示温度每变化1℃,阻值变化±1200×10⁻⁶;以100℃温度变化为例,阻值变化量为20mΩ×1200e-6×100=2.4mΩ,实际应用中需根据场景温度波动调整检测精度;
  • 工作温度范围:-55℃~+155℃,覆盖工业环境(-40℃~+85℃)与高温场景(如LED驱动、电机周边),满足恶劣环境下的稳定工作。

三、封装与工艺特点

1. 1206封装细节

1206为英制封装尺寸(公制对应3216),具体参数为:

  • 长度:3.2mm±0.2mm;
  • 宽度:1.6mm±0.15mm;
  • 厚度:0.55mm±0.1mm; 适配主流贴片机的吸嘴规格,贴装效率高,且尺寸紧凑,适合高密度PCB设计。

2. 厚膜工艺优势

采用厚膜丝网印刷工艺:将电阻浆料(如钌基浆料)印刷在96%氧化铝陶瓷基片上,经高温烧结后形成电阻层,再表面涂覆玻璃釉保护层。该工艺的优势在于:

  • 成本低于薄膜电阻,性价比高;
  • 电阻层附着力强,抗冲击、抗振动能力优于薄膜;
  • 阻值范围宽(从毫欧到兆欧),适配多场景需求。

四、典型应用场景

RTT06R020FTP的低阻、中小功率特性,使其在以下场景中广泛应用:

  1. 电源管理系统:如开关电源、DC-DC转换器的输出电流检测,过流保护电路的电流采样;
  2. 电池管理系统(BMS):锂电池组的充放电电流监测,单体电池均衡电路的负载电阻;
  3. 电机驱动:小型直流电机、步进电机的电流反馈,过流保护采样;
  4. 消费电子:如充电器、移动电源的电流检测,智能穿戴设备的功率监测;
  5. 工业控制:PLC输入输出模块的负载电阻,传感器信号调理电路的分压电阻。

五、可靠性与使用注意事项

1. 可靠性验证

旺诠作为专业电阻厂商,RTT06R020FTP通过以下可靠性测试:

  • 高温存储(155℃×1000h):阻值变化≤±1%;
  • 温度循环(-55℃~+155℃×1000次):阻值变化≤±1%;
  • 耐焊接热(260℃×10s):阻值变化≤±0.5%; 符合IEC 61040等电子元器件可靠性标准。

2. 使用注意事项

  • 降额使用:环境温度高于25℃时,需按旺诠提供的降额曲线(如85℃时功率降额至70%);
  • 焊接规范:采用无铅回流焊,峰值温度≤260℃,回流时间≤10s;手工焊接需控制烙铁温度≤350℃,焊接时间≤3s;
  • 机械应力:避免PCB弯折或外力挤压,防止电阻层开裂;
  • 存储条件:常温(15℃~35℃)、干燥(湿度≤60%)环境存储,开封后12个月内使用完毕。

总结:RTT06R020FTP是一款「精准低阻+中小功率+工业级耐受」的贴片厚膜电阻,适配多领域的电流检测与负载需求,是旺诠针对中低端低阻应用推出的高性价比产品。

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