WMSIC Electronic Components

RALEC RTT023903FTH

ModelRTT023903FTH
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 RTT023903FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT023903FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
390kΩ
Electronic Component
10
Electronic Component
BM0265569512
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.

RTT023903FTH 贴片厚膜电阻产品概述

RTT023903FTH是台湾旺诠电子(RALEC)推出的一款0402封装厚膜贴片电阻,专为小型化、低功耗电子设备设计,兼顾精度、稳定性与成本优势,广泛应用于消费电子、传感器模块、物联网等领域。

一、产品基本信息

  • 品牌:RALEC(旺诠)
  • 产品类型:厚膜贴片电阻
  • 封装规格:0402(英制尺寸,对应公制1005,实际尺寸约1.0mm×0.5mm)
  • 型号标识:RTT023903FTH(其中“023903”对应阻值390kΩ,“F”代表精度±1%,“TH”关联厚膜工艺特性)

二、核心电气参数详解

RTT023903FTH的参数适配中低功耗、小型化场景,关键参数及实际意义如下:

  1. 阻值与精度:390kΩ±1%
    阻值偏差控制在±1%以内,满足多数电子电路对阻值一致性的要求(如信号分压、滤波网络、反馈回路),无需额外校准即可稳定工作,平衡了精度与成本。
  2. 额定功率:62.5mW
    0402封装的标准低功率规格,适配便携式设备(如智能手表、物联网节点)的低功耗设计,避免功率冗余导致的PCB空间浪费与成本增加。
  3. 最大工作电压:50V
    电路中实际工作电压不得超过50V,若超过可能引发绝缘击穿或阻值漂移,需结合电路设计预留10%~20%的安全裕量。
  4. 温度系数(TCR):±100ppm/℃
    每变化1℃,阻值变化约0.01%,在宽温范围内保持较好的稳定性,适合传感器、工业控制等高低温交替的场景。
  5. 工作温度范围:-55℃~+155℃
    覆盖工业级温度要求,可在极端环境(如户外传感器、车载电子)中连续可靠运行,无需额外温控措施。

三、封装与工艺特性

  • 0402封装优势:体积小巧(1.0mm×0.5mm),可大幅节省PCB空间,适配小型化设备(如可穿戴设备、微型医疗仪器)的高密度贴装需求;支持自动化SMT生产线,生产效率高,适合批量应用。
  • 厚膜工艺特点:通过丝网印刷电阻浆料、高温烧结制成,相比薄膜电阻成本更低,且厚膜层抗磨损、抗环境腐蚀能力更强,批量生产一致性好,长期可靠性高。

四、典型应用场景

RTT023903FTH的参数特性使其适用于以下场景:

  1. 小型化消费电子:智能手机、智能手表的电源管理电路(如电池电压分压检测)、音频信号调理电路;
  2. 传感器模块:压力传感器、温度传感器的信号放大/滤波电路(宽温范围适配传感器工作环境);
  3. 物联网低功耗设备:智能家居节点、无线传感器网络(WSN)的信号收发电路(低功率匹配设备功耗);
  4. 工业控制与车载电子:小型控制器的反馈网络、车载辅助电子的信号处理电路(宽温范围适应车载-40℃~+85℃的环境)。

五、使用注意事项

为确保产品性能与可靠性,需注意以下要点:

  1. 功率与电压限制:实际电路功耗不得超过62.5mW,电压不得超过50V,避免过功率/过压导致阻值漂移或损坏;
  2. 焊接要求:采用回流焊工艺时,需遵循0402封装的标准温度曲线(峰值温度≤245℃,时间≤10s),避免热应力导致阻值变化;
  3. 存储与运输:存储于温度0℃~40℃、湿度≤60%的干燥环境,避免受潮影响焊接性;运输过程中防止机械冲击,避免封装破损;
  4. 电路设计:若需更高精度(如±0.1%)或更大功率(如0.125W),需根据需求选择对应规格的电阻,不可超参数使用。

RTT023903FTH凭借紧凑封装、稳定性能与成本优势,成为小型化电子设备中390kΩ阻值的理想选择,可满足多数中低精度、低功耗场景的需求。

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