WMSIC Electronic Components

RALEC RTT022942FTH

ModelRTT022942FTH
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 RTT022942FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT022942FTH
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
50
Electronic Component
BM0265966506
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.

RALEC RTT022942FTH 贴片厚膜电阻产品概述

RALEC(旺诠)推出的RTT022942FTH是一款针对小体积高密度电路、低功耗场景设计的0402封装厚膜贴片电阻,兼具高精度、宽温稳定性与成本优势,广泛适配消费电子、工业控制等领域的电路需求。以下从核心定位、参数性能、封装特性、应用场景等维度展开概述。

一、核心身份与市场定位

RTT022942FTH属于旺诠常规贴片厚膜电阻产品线,聚焦**“小尺寸+高精度+工业级宽温”** 三大核心需求:既满足便携设备对PCB空间的极致压缩,又能应对工业环境的极端温度变化,同时通过厚膜工艺平衡了性能与成本,是替代部分薄膜电阻、适配低功耗电路的高性价比选择。

二、关键参数与性能指标

该电阻的核心参数精准匹配低功耗高精度场景,具体如下:

  1. 阻值与精度:标称阻值29.4kΩ,精度±1%——满足多数信号调理、分压电路对阻值偏差的控制要求(如模拟电路中电压/电流转换的线性度需求);
  2. 功率与电压:额定功率62.5mW,最大工作电压50V——适合电池供电设备、小信号电路等低功耗场景,避免功率过载导致的性能衰减;
  3. 温度特性:温度系数(TCR)±100ppm/℃,工作温度范围-55℃~+155℃——在极端温度变化下(如工业现场的高温作业、寒冷地区的户外设备),阻值漂移幅度可控(以155℃为例,相对于25℃的阻值变化约1.3%),稳定维持电路电气性能;
  4. 环保与认证:符合RoHS 2.0、REACH等环保标准,无铅焊接兼容,适配全球市场合规要求。

三、封装与物理特性

采用0402封装(英制尺寸,对应公制1005,即1.0mm×0.5mm),是贴片电阻的主流小尺寸封装之一:

  • 物理尺寸紧凑,适配高密度PCB布局(如智能手机主板、小型医疗仪器电路板);
  • 贴片式设计支持自动化SMT生产,提高批量制造效率;
  • 厚膜工艺优势:相比薄膜电阻,厚膜电阻抗过载能力更强(短期脉冲负载耐受度高),且成本更低,适合大规模应用。

四、典型应用场景

基于参数特性,RTT022942FTH的核心应用场景集中在以下领域:

  1. 消费电子:智能手机、平板电脑、智能穿戴设备的信号滤波、分压电路(小体积适配便携设备的紧凑空间);
  2. 工业控制:PLC输入输出模块、传感器信号放大电路(宽温范围适配工厂车间的高低温环境);
  3. 汽车电子:车载小功率控制模块(如仪表盘背光调节、传感器信号处理,155℃高温适配部分车载场景);
  4. 通信设备:小型基站、路由器的电源滤波、阻抗匹配电路(高密度布局适配通信设备的模块化设计);
  5. 医疗电子:便携式血糖仪、监护仪的信号检测电路(稳定的温度特性保障医疗设备的精度一致性)。

五、可靠性与品牌背书

RALEC(旺诠)作为全球知名电阻制造商,其产品通过多重可靠性测试验证:

  • 负载寿命测试:在额定功率、85℃环境下连续工作1000小时,阻值变化率≤±0.5%;
  • 温度循环测试:-55℃~+155℃循环100次,无外观损坏、阻值漂移符合规格;
  • 品牌认可度:产品广泛应用于华为、小米、西门子等企业的下游设备,市场验证充分。

六、选型与使用注意事项

为保障电路稳定性,使用时需注意以下要点:

  1. 功率降额:实际工作功率建议不超过额定功率的80%(即≤50mW),避免长期过载导致电阻老化;
  2. 焊接规范:采用回流焊时,温度曲线需满足0402封装要求(预热150-180℃,峰值230-250℃,峰值时间≤30秒);波峰焊需控制焊接时间≤3秒;
  3. 静电防护:操作时需佩戴ESD手环/手套,避免静电放电损坏电阻内部结构;
  4. 存储条件:常温干燥环境(温度15-35℃,湿度≤60%)存储,避免长期暴露于潮湿环境(厚膜电阻受潮会影响焊接性能)。

总结

RTT022942FTH是旺诠针对低功耗、高密度、宽温场景推出的高性价比贴片厚膜电阻,平衡了小尺寸、高精度与可靠性,能满足消费电子、工业控制等多领域的电路需求,是替代传统电阻、优化PCB布局的理想选择。

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