WMSIC Electronic Components

RALEC RTT022000FTH

ModelRTT022000FTH
Package0402
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 RTT022000FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT022000FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
200Ω
Electronic Component
10
Electronic Component
BM0265421420
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

RTT022000FTH 厚膜贴片电阻产品概述

一、产品核心定位与典型应用场景

RTT022000FTH是旺诠(RALEC)推出的0402封装厚膜贴片电阻,主打“小体积、高精度、宽温稳定”特性,专为低功耗、高密度布局的电子设备设计。其典型应用覆盖三大领域:

  1. 消费电子小型化设备:如TWS无线耳机、智能手表、便携式蓝牙音箱等的电源管理模块分压电阻、信号调理电路限流电阻;
  2. 工业与物联网终端:如传感器节点、小型PLC(可编程逻辑控制器)的模拟信号采样电阻、低功耗无线模块的偏置电阻;
  3. 医疗电子设备:如便携式血糖仪、血氧仪的信号放大电路匹配电阻,满足低功耗与稳定输出需求。

二、关键技术参数详细解析

该电阻的核心参数针对低功耗精密电路优化,关键指标如下:

  • 阻值与精度:标称阻值200Ω,精度±1%——满足精密分压、电流采样等对阻值一致性要求较高的场景,避免因阻值偏差导致的电路输出误差;
  • 功率与电压:额定功率62.5mW,最大工作电压50V。需注意功率-电压匹配原则:实际工作时,电压需同时满足( U \leq \sqrt{P \times R} = 3.54V )(由额定功率推导)和( U \leq 50V ),两者取较小值,确保电阻长期可靠工作;
  • 温度系数(TCR):±100ppm/℃——即温度每变化1℃,阻值变化±0.01%。以工作温度范围(-55℃~+155℃)计算,最大温漂为±2000ppm(±0.2%),远低于电路对阻值变化的容忍阈值;
  • 工作温度范围:-55℃至+155℃——覆盖工业级、部分汽车级(如车载小型传感器)的温区要求,适应极端环境下的稳定运行。

三、封装与工艺特性

  1. 封装规格:采用0402英制贴片封装(对应公制1005,尺寸1.0mm×0.5mm),体积紧凑,适合高密度PCB布局(如多层板内层电路),有效降低设备体积;
  2. 厚膜工艺:通过丝网印刷电阻浆料于陶瓷基板上,经高温烧结形成稳定电阻膜层,兼具“性能稳定、成本可控、批量一致性好”三大优势,区别于薄膜电阻的高成本、线绕电阻的大体积;
  3. 焊接兼容性:SMD贴片式引脚,兼容回流焊、波峰焊等常规贴片工艺,焊接后焊点可靠性高,符合IPC-A-610电子组装标准。

四、可靠性与环境适应性

该电阻针对宽温、潮湿等复杂环境优化,可靠性表现突出:

  • 温漂稳定性:±100ppm/℃的TCR在宽温范围内表现稳定,例如在-40℃(工业低温)和+85℃(常规工作温度)下,阻值变化率仅为±0.0125%,不影响精密电路的输出精度;
  • 耐环境性能:厚膜电阻的陶瓷基板与封装材料耐潮湿、耐盐雾(符合IEC 60068-2-11盐雾测试标准),适合户外设备、沿海地区应用;
  • 长期可靠性:额定功率下连续工作1000小时,阻值漂移≤±0.5%(符合旺诠内部可靠性标准),满足设备的长寿命需求。

五、品牌与品质保障

RTT022000FTH依托旺诠(RALEC)的专业制造能力,品质有明确保障:

  • 品牌背景:旺诠是全球知名电阻制造商,专注厚膜/薄膜电阻研发超过20年,产品广泛应用于苹果、华为等知名品牌的消费电子设备;
  • 环保与认证:符合RoHS 2.0、REACH等环保指令,无铅焊接兼容,部分批次通过AEC-Q200(汽车级)认证(旺诠具备相关认证能力);
  • 批量一致性:±1%的精度与严格生产管控,确保批量产品阻值偏差控制在±0.5%以内(实际生产能力优于标称精度),适合量产设备的标准化生产。

该产品以“小体积适配高密度布局、高精度满足精密电路需求、宽温稳定适应极端环境”为核心优势,是低功耗电子设备的优选电阻方案。

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