WMSIC Electronic Components

RALEC RTT02205JTH

ModelRTT02205JTH
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 RTT02205JTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT02205JTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.009g
Electronic Component
2MΩ
Electronic Component
50
Electronic Component
BM0265577601
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.

RTT02205JTH 贴片厚膜电阻产品概述

RTT02205JTH是RALEC旺诠推出的一款0402封装厚膜贴片电阻,针对低功耗、小型化电路场景设计,兼具成本优势与稳定性能,广泛适配消费电子、工业控制等领域的高密度电路需求。

一、产品基本定位

该电阻属于小功率厚膜贴片电阻,核心定位为「高密度电路中的低功耗阻值匹配元件」。厚膜电阻工艺(丝网印刷+烧结)使其在成本控制与稳定性之间实现平衡,0402封装(尺寸约1.0mm×0.5mm)则满足便携式设备、微型模块的小型化要求,是替代传统插件电阻、优化电路布局的理想选择。

二、核心性能参数详解

RTT02205JTH的参数设计精准匹配低功耗场景,关键参数及意义如下:

1. 阻值与精度

  • 标称阻值:2MΩ(2000000Ω),覆盖高频/低频电路中高阻匹配需求(如射频模块阻抗匹配、传感器信号偏置);
  • 精度:±5%,属于工业级通用精度,可满足大多数电路的阻值匹配要求(无需超高精度的场景下,平衡性能与成本)。

2. 功率与电压

  • 额定功率:62.5mW(0.0625W),适配低功耗电路(如传感器信号调理、待机电路),避免功率冗余导致的成本增加;
  • 最大工作电压:50V,满足常规电子电路的电压范围(如3.3V/5V系统、12V辅助电路),无需额外降额设计(降额使用可进一步提升可靠性)。

3. 温度特性

  • 温度系数(TCR):±100ppm/℃,表示温度每变化1℃,阻值变化±100百万分之一。以2MΩ为例,每度阻值变化±200Ω;
  • 工作温度范围:-55℃~+155℃,覆盖工业级、汽车级(部分场景)的温度需求,极端环境下仍能保持性能稳定(如户外传感器、车载低功耗模块)。

4. 封装与类型

  • 封装:0402(英制尺寸:0.04英寸×0.02英寸),适合回流焊工艺,适配高密度PCB布局(每平方厘米可容纳超100个该封装电阻);
  • 类型:厚膜电阻,工艺成熟、成本低,且抗浪涌能力优于薄膜电阻,适合批量应用。

三、典型应用场景

RTT02205JTH因体积小、功耗低、温度范围宽,广泛应用于以下场景:

1. 消费电子

  • 便携式设备:蓝牙耳机、智能手环、智能手表的信号调理电路(如麦克风偏置电阻、传感器接口匹配);
  • 小型家电:智能插座、遥控器的低功耗待机电路(阻值匹配电源分压,降低待机电流)。

2. 工业控制

  • 传感器模块:温度传感器、压力传感器的信号放大电路(高阻特性减少信号衰减);
  • 微型PLC:输入输出接口的上拉/下拉电阻(高密度布局,优化PCB空间)。

3. 通信设备

  • 射频辅助电路:蓝牙/WiFi模块的匹配电阻(高阻特性适配射频阻抗,提升信号传输效率);
  • 电源管理:低功耗DC-DC模块的反馈电阻(功率匹配,保证输出电压稳定)。

4. 汽车电子(辅助场景)

  • 车载传感器:胎压监测、车内温度传感器的信号调理(-40℃~+85℃汽车级基础要求,155℃上限可覆盖发动机舱附近高温区域);
  • 待机电路:汽车中控的低功耗待机电阻(功耗低不额外耗电,延长电池寿命)。

四、品牌与可靠性优势

RALEC旺诠作为台湾老牌电阻制造商,RTT02205JTH继承了其成熟的厚膜电阻工艺,具备以下可靠性优势:

  1. 环保合规:符合RoHS 2.0、REACH等国际环保标准,无铅无卤,适配全球市场;
  2. 稳定性测试:通过高温存储(155℃/1000h)、温度循环(-55℃~+155℃/500次)、湿度测试(85℃/85%RH/1000h)等行业标准测试,阻值变化率≤1%;
  3. 批量一致性:厚膜工艺的一致性优于薄膜电阻,适合大规模生产中的阻值匹配,降低电路调试成本。

五、安装与存储注意事项

为保证性能稳定,建议遵循以下安装存储规范:

  1. 焊接工艺:采用回流焊,峰值温度控制在240℃~260℃,焊接时间不超过10秒(避免封装受热变形);
  2. 机械应力:0402封装体积小,避免焊接后施加外力(如弯曲PCB),防止焊点开裂;
  3. 存储环境:未开封产品存储于温度15℃35℃、湿度40%60%的干燥环境,开封后建议12个月内使用完毕(避免受潮影响焊接性能)。

RTT02205JTH以其小体积、低功耗、宽温特性,成为高密度低功耗电路的高性价比选择,适配多领域的通用阻值匹配需求。

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