WMSIC Electronic Components

RALEC RTT021131FTH

ModelRTT021131FTH
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 RTT021131FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT021131FTH
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
50
Electronic Component
BM0265966482
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.

RTT021131FTH 厚膜贴片电阻产品概述

RTT021131FTH是RALEC旺诠推出的一款小体积、高精度厚膜贴片电阻,采用0402封装,适配低功耗、宽温环境下的精密电路设计,广泛应用于消费电子、工业控制、汽车电子等领域。

一、产品基本属性

该产品属于旺诠RTT系列厚膜贴片电阻,核心属性明确:

  • 品牌型号:RALEC(旺诠)RTT021131FTH
  • 电阻类型:厚膜贴片电阻(区别于薄膜电阻,具备更好的过负载耐受能力)
  • 封装规格:0402(英制代码,对应公制尺寸1.0mm×0.5mm×0.45mm,典型厚度)
  • 型号标识逻辑:型号中“02”对应0402封装,“1131”关联1.13kΩ标称阻值,“FTH”为精度与工艺组合标识。

二、核心性能参数

RTT021131FTH的关键参数精准匹配低功耗精密电路需求,具体如下:

  1. 阻值与精度:标称阻值1.13kΩ,精度±1%,满足多数信号调理、反馈电路对阻值稳定性的要求;
  2. 功率容量:额定功率62.5mW,适配低功耗设计场景(如智能穿戴、物联网节点);
  3. 工作电压:最大工作电压50V,避免高压击穿风险;
  4. 温度特性:温度系数±100ppm/℃,工作温度范围-55℃~+155℃,宽温下阻值漂移可控(如125℃时漂移约±0.126%);
  5. 封装尺寸:0402小体积,可大幅节省PCB空间,适配便携设备的小型化趋势。

三、典型应用场景

结合参数特性,该电阻主要应用于以下场景:

  1. 消费电子:手机、平板等便携设备的音频放大电路偏置电阻、信号滤波电阻,小体积适配紧凑主板设计;
  2. 工业控制:温度传感器、压力传感器的信号放大电路,宽温范围保证户外设备(如气象站)极端环境下阻值稳定;
  3. 汽车电子:倒车雷达、胎压监测系统的信号处理电路,155℃高温耐受能力满足发动机舱附近的环境需求;
  4. 通信设备:基站射频前端偏置电路、电源管理模块反馈电阻,±1%精度保障信号质量;
  5. 低功耗电路:智能手环、无线传感器节点的信号调理电路,62.5mW功率适配低功耗设计要求。

四、性能优势

相对于同封装薄膜电阻或普通厚膜电阻,RTT021131FTH具备以下优势:

  1. 宽温稳定性:-55℃~+155℃覆盖汽车、工业等极端环境,±100ppm/℃温度系数使阻值漂移在宽温下可控;
  2. 小体积高集成:0402封装尺寸仅1.0mm×0.5mm,可减少PCB布局面积,适配便携设备的小型化趋势;
  3. 精度可靠:±1%精度满足精密信号调理需求,避免因阻值偏差导致电路性能波动;
  4. 厚膜工艺优势:厚膜电阻的过负载耐受能力优于薄膜电阻,可承受短时间脉冲电压(如1.5倍额定电压下的脉冲测试),提升电路可靠性;
  5. 低功耗适配:62.5mW额定功率无需额外大幅降额,即可满足多数低功耗电路需求。

五、应用注意事项

为保障电路可靠性,使用时需注意以下几点:

  1. 功率降额:实际应用功率建议不超过额定功率的50%(即31.25mW),延长产品寿命;
  2. 电压限制:工作电压不得超过50V,避免击穿损坏;
  3. 焊接适配:回流焊需符合J-STD-020标准(峰值温度260℃±5℃,时间≤10秒),手工焊烙铁温度≤350℃;
  4. 温漂补偿:若需更高精度(如±0.1%),可结合温度系数设计补偿电路,抵消宽温下的阻值漂移。

六、选型替代参考

若需替代或扩展选型,可参考以下规则:

  • 同品牌替代:旺诠同系列需满足封装0402、阻值1.13kΩ±1%、功率≥62.5mW;
  • 跨品牌替代:国巨、三星等品牌同封装0402、阻值1.13kΩ±1%、功率≥62.5mW的厚膜电阻可替代,但需验证温度系数与工作温度范围是否匹配。

该产品凭借稳定的宽温性能、小体积优势,成为低功耗精密电路设计的常用选型之一。

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