WMSIC Electronic Components

RALEC RTT022700FTH

ModelRTT022700FTH
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RALEC RTT022700FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT022700FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
270Ω
Electronic Component
50
Electronic Component
BM0265140130
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.

RALEC RTT022700FTH 厚膜片式电阻产品概述

一、产品基本定位与核心参数

RALEC(旺诠)RTT022700FTH是一款针对小型化、低功耗电子设备设计的厚膜片式电阻,核心参数聚焦「标准阻值、精准度与宽温适应性」,具体如下:

  • 阻值:270Ω(E24系列标准阻值,适配多数电路设计的通用需求)
  • 精度:±1%(高于常规±5%电阻,满足信号调理、分压限流的精确性要求)
  • 功率:62.5mW(即0.0625W,适配小信号电路的低功耗场景)
  • 工作电压:50V(直流/交流峰值电压,需结合功率限制实际应用)
  • 温度系数:±100ppm/℃(阻值随温度变化的稳定性指标)
  • 工作温度:-55℃~+155℃(覆盖汽车、工业等宽温环境)
  • 封装:0402(英制,公制对应1005,尺寸1.0mm×0.5mm,适合高密度PCB布局)

二、封装与工艺特性

RTT022700FTH采用0402小型化封装,配合旺诠成熟的厚膜工艺,兼具成本优势与可靠性:

  1. 封装设计:尺寸紧凑(1.0mm长×0.5mm宽×0.3mm厚),适配智能手机、可穿戴设备等对空间要求苛刻的产品;端电极采用镍-锡镀层,兼容无铅回流焊,焊接强度与抗氧化性符合IPC-A-610标准。
  2. 厚膜工艺:以高绝缘性氧化铝陶瓷为基底,通过丝网印刷电阻浆料、高温烧结形成电阻层——相比薄膜电阻成本更低,同时具备足够的阻值稳定性与耐温性,适配量产需求。

三、电气性能详解

3.1 阻值精度与功率限制

  • 精度±1%:可避免电阻偏差导致的信号失真,例如在模数转换(ADC)的参考分压电路中,能保证输出电压的精准度;
  • 功率62.5mW:实际应用需满足「P≤62.5mW」,换算得最大允许电流约15mA((I=\sqrt{P/R}=\sqrt{0.0625/270}≈15.2mA)),最大允许电压约4.1V((V=IR≈4.1V))。需注意:标称50V为极限电压,实际受功率限制,不可直接施加50V(否则功率达9.26W,远超额定值)。

3.2 温度系数与宽温稳定性

温度系数±100ppm/℃表示:温度每变化1℃,阻值变化±0.027Ω。在工作温度范围-55℃~+155℃内,最大阻值变化量为±5.4Ω,仍在±1%精度(±2.7Ω)的2倍范围内,满足宽温环境下的性能一致性(如汽车发动机舱、工业高温设备)。

四、环境适应性表现

RTT022700FTH的环境适应性覆盖多数应用场景:

  • 宽温范围:-55℃+155℃,高于常规消费电子(0℃70℃),适配汽车电子(-40℃125℃)、工业控制(-55℃125℃)等场景;
  • 耐湿性能:厚膜电阻结构致密,耐湿热老化(符合IEC 60068-2-60标准),适合湿度变化大的户外设备;
  • 耐焊接热:可承受260℃回流焊温度(10秒内),焊接后阻值变化率≤0.5%,可靠性符合行业标准。

五、典型应用场景

结合参数特性,RTT022700FTH主要用于以下场景:

  1. 小型化消费电子:智能手环、蓝牙耳机的传感器信号调理(如心率传感器分压);
  2. 工业控制小信号电路:PLC输入/输出接口的限流、温度传感器的信号放大;
  3. 汽车电子辅助电路:仪表盘背光驱动、车身控制器的低功耗电路(适配-40℃~125℃环境);
  4. 通信设备射频前端:4G/5G小基站的低噪声放大器(LNA)外围电阻(0402封装适配高密度布局);
  5. LED小功率驱动:小型LED阵列(如指示灯)的限流电阻(电流≤15mA)。

六、品牌与可靠性说明

RALEC(旺诠)是全球知名被动元件制造商,RTT022700FTH具备以下可靠性优势:

  • 环保合规:符合RoHS 2.0、REACH等欧盟环保标准,无铅无卤;
  • 可靠性测试:通过振动(10g,20-2000Hz)、冲击(100g,10ms)等测试,MTBF(平均无故障时间)≥10^6小时;
  • 一致性:量产产品阻值偏差控制在±1%内,批次间一致性好,适合批量生产。

该产品凭借「小型化、精准度、宽温适配」三大核心优势,成为消费电子、工业、汽车等领域低功耗电路的高性价比选择。

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