WMSIC Electronic Components

RALEC RTT021182FTH

ModelRTT021182FTH
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

13 specifications

Core information

Product name
RALEC RTT021182FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT021182FTH
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
10
Electronic Component
BM0265746270
Electronic Component
Electronic Component
Electronic Component
10000

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

RTT021182FTH厚膜贴片电阻产品概述

一、产品基本信息

RTT021182FTH是台湾旺诠(RALEC)推出的一款厚膜贴片电阻,采用0402英制封装(对应公制1005尺寸,长1.0mm×宽0.5mm),属于小体积高密度贴片电阻范畴。型号中“02”对应封装规格(0402的简化标识),“1182”为阻值代码(118×10²Ω=11.8kΩ),“FTH”代表厚膜工艺及宽温适配特性。该产品主打“小体积+高精度+低功耗”平衡,适用于对空间和性能要求苛刻的电子电路设计。

二、核心性能参数详解

RTT021182FTH的关键参数围绕工业级可靠性与场景适配性设计,具体如下:

  1. 阻值与精度:标称阻值11.8kΩ,精度±1%(实际阻值范围11.682kΩ~11.918kΩ),无需额外校准即可满足消费电子、工业控制电路的阻值匹配需求。
  2. 功率与电压:额定功率62.5mW(0402封装典型值),最大工作电压50V。需注意:实际使用需遵循“功率优先”——当电压超过√(62.5e-3×11800)≈27.2V时,功耗会超出额定值,建议通过降额设计(实际功耗≤31.25mW)保证可靠性。
  3. 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±1.18Ω,适配一般环境温度波动(如室内±25℃)。
  4. 工作温度范围:-55℃~+155℃,符合工业级及汽车级宽温标准,可应对沙漠高温、寒带低温等极端场景。

三、工艺设计与结构特点

该产品采用厚膜丝网印刷工艺,在氧化铝陶瓷基片上实现电阻层烧结,具有以下优势:

  1. 小体积高密度:0402封装仅1.0mm×0.5mm,可减少PCB板占用面积30%以上,适合便携式设备(智能手环、蓝牙耳机)及高密度模块(电源管理IC周边)。
  2. 端电极可靠性:三层电极结构(镍底层+铜中间层+锡表层),兼顾焊接润湿性与抗硫化性能,通过回流焊测试(符合J-STD-020标准),焊接后拉力强度≥1.5N。
  3. 阻值稳定性:厚膜层与陶瓷基片结合紧密,长期使用阻值漂移率≤0.1%/1000小时,满足电子设备5年以上使用寿命要求。

四、典型应用场景

RTT021182FTH因体积小、功耗低、宽温稳的特点,广泛应用于:

  1. 便携式消费电子:手机传感器(加速度计、心率传感器)的分压/限流电路;
  2. 小型电源模块:DC-DC转换器反馈电阻、LDO输出分压(低功耗设计下仅需数mW);
  3. 工业控制:PLC输入输出信号匹配、传感器接口限流(适配车间温差);
  4. 汽车电子辅助电路:胎压监测(TPMS)信号电路、车载USB过流保护(符合-40℃~+85℃车载环境);
  5. 物联网终端:智能水表、环境传感器的信号分压、通信模块偏置电阻。

五、可靠性与环境适应性

该产品通过多项可靠性测试,保证复杂环境下稳定工作:

  1. 环境测试:温度循环(-55℃~+155℃,50次)、湿度测试(85℃/85%RH,1000小时)后,阻值变化率≤0.5%;
  2. 抗硫化性能:端电极抗硫化设计,通过ASTM B809标准(硫化氢环境100小时),无腐蚀现象;
  3. 降额建议:旺诠官方建议实际功耗控制在额定值50%以内,使用寿命可延长至10年以上。

RTT021182FTH以高性价比实现了小体积与高性能的平衡,是便携式设备、工业控制及汽车电子等领域的实用选择。

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