WMSIC Electronic Components

RALEC RTT022703FTH

ModelRTT022703FTH
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 RTT022703FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT022703FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
270kΩ
Electronic Component
10
Electronic Component
BM0265569505
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.

RTT022703FTH 厚膜贴片电阻产品概述

一、产品定位与核心特性

RTT022703FTH是台湾旺诠(RALEC)推出的0402封装厚膜贴片电阻,属于通用型小功率高精度器件,专为小型化、宽温区应用场景设计。其核心特性可总结为:

  • 小封装高密度:0402(1.0mm×0.5mm)封装,适配便携/微型电路的高密度布局;
  • 精准阻值控制:270kΩ固定阻值,±1%精度满足多数信号/电源电路的精准需求;
  • 稳定温漂特性:±100ppm/℃温度系数,温度变化对阻值影响极小;
  • 宽温工作范围:-55℃~+155℃,覆盖工业、汽车(辅助系统)及极端环境;
  • 低功率适配:62.5mW额定功率,匹配小电流信号电路的功耗要求。

二、关键参数详解

该产品的核心参数均针对实际应用场景优化,具体如下:

  1. 阻值与精度:固定阻值270kΩ,±1%精度(实际阻值范围267.3kΩ~272.7kΩ),可满足传感器信号调理、电源分压等需要精准阻值的电路;
  2. 功率与电压:额定功率62.5mW(0.0625W),额定工作电压50V。需注意:功率与电压满足(P=\frac{V^2}{R}),实际使用中电压不得超过50V(对应功率约9.26mW,远低于额定功率,故电压限制更严格);
  3. 温度系数(TCR):±100ppm/℃,含义为温度每变化1℃,阻值变化百万分之一。以270kΩ为例,1℃变化仅导致阻值变化0.27Ω,可稳定信号电路的输出一致性;
  4. 工作温区:-55℃+155℃,高于普通商业级(0℃70℃),可适应工业现场的高低温循环、车载环境的极端温度。

三、封装与工艺说明

  1. 封装类型:0402英制封装(公制1005),尺寸为(1.0\mathrm{mm} \times 0.5\mathrm{mm} \times 0.3\mathrm{mm})(长×宽×高),适配SMT自动贴装生产线,生产效率高;
  2. 工艺特点:采用厚膜印刷工艺,在氧化铝陶瓷基底上印刷钌基电阻浆料并高温烧结而成。厚膜工艺的优势在于:
    • 耐高压性能优于薄膜电阻;
    • 成本低于同精度薄膜电阻;
    • 抗机械应力性能较好,适配振动环境。

四、典型适用场景

RTT022703FTH的参数特性使其适用于以下场景:

  1. 消费电子:手机、平板、智能穿戴的电源滤波、信号分压电路(小封装适配便携设备的高密度布局);
  2. 工业控制:PLC、温度/压力传感器模块的信号调理电路(宽温区适应车间高低温,±1%精度保证信号放大精准性);
  3. 通信设备:小型基站、路由器的射频前端匹配网络(低功率+小封装适配射频电路的小型化需求);
  4. 汽车电子(辅助系统):车内温度传感器、胎压监测的信号处理电路(-55℃~125℃的汽车环境完全覆盖,155℃余量提升可靠性);
  5. 医疗设备:小型监护仪的信号采集电路(稳定性要求高,温漂特性保证数据准确性)。

五、可靠性与环境适应性

该产品通过多项可靠性测试,满足工业级标准:

  • 耐温循环:-55℃~+155℃循环1000次,阻值变化≤±0.5%;
  • 耐湿度:85℃/85%RH环境下放置1000小时,阻值变化≤±1%;
  • 抗振动:符合IEC 60068-2-6振动测试标准(10~2000Hz,加速度2g),无开路/短路故障;
  • 耐电压:额定电压50V,可承受短时间100V过压测试(符合UL认证要求)。

六、选型参考提示

若需替代或扩展,可参考以下对比:

  • 需更高精度(±0.1%):可选RALEC薄膜电阻系列(如RTT02系列薄膜款);
  • 需更高功率(0.125W):可选0603封装同阻值电阻(如RTT032703系列);
  • 需更低温漂(±50ppm/℃):可选低温漂厚膜电阻(如RALEC RTT02-LT系列);
  • 需更低成本:若精度放宽至±5%,可选择同封装经济型厚膜电阻(如RTT022703系列经济型款)。

该产品凭借小封装、高精度、宽温区的综合优势,成为消费电子、工业控制等领域的高性价比选择。

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