WMSIC Electronic Components

RALEC RTT025760FTH

ModelRTT025760FTH
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 RTT025760FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT025760FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
576Ω
Electronic Component
10
Electronic Component
BM0265134775
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.

RTT025760FTH 产品概述

一、产品简介

RTT025760FTH 是 RALEC(旺诠)系列0402 封装的贴片厚膜电阻,标称阻值 576Ω,精度 ±1%,额定功率 62.5mW(0.0625W)。该器件针对空间受限且要求中等精度与良好温度稳定性的 SMT 应用设计,适配常见贴片回流工艺,适用于消费电子、通信、工业控制等多种电路板应用场景。

二、主要电气与热参数

  • 阻值:576Ω
  • 精度:±1%(1%)
  • 额定功率:62.5mW(0.0625W)
  • 允许工作电压:50V(器件规范给出值)
  • 温度系数(TCR):±100ppm/℃(≈每℃ 0.01%)
  • 工作温度范围:-55℃ ~ +155℃
    注:按功率限制计算的最大允许电压与电流为关键参考值——最大允许电流 Imax ≈ √(P/R) ≈ √(0.0625/576) ≈ 0.0104A ≈ 10.4mA;按功率对应的电压 Vpower ≈ √(P·R) ≈ √(0.0625×576) ≈ 6V。因此在实际电路中,应以不超过功率限值(对应约 6V)与器件工作电压 50V 中的较低值作为安全工作电压。

三、产品特点

  • 小型化封装 0402(适合高密度贴装)
  • 厚膜工艺,性价比高,适合批量生产应用
  • ±1% 精度可满足多数精密模拟与分压应用需求
  • 宽温度范围与 ±100ppm/℃ 的温度稳定性,适应温度变化环境
  • 额定电压较高(50V),在低电流场合提供更灵活的电路布局空间

四、典型应用

  • 电压分压与偏置网络
  • 信号采集与滤波电路(与其他元件配合)
  • 手持与便携设备、物联网终端的阻性元件需求
  • 工业控制与测量设备(在满足功率与可靠性要求下)
  • 通信设备、消费电子产品的常规限流与测量电路

五、焊接与使用建议

  • 推荐使用常规 SMT 回流焊工艺,遵循制造商的回流温度曲线(若采用无铅回流,请控制峰值温度及时间以防过热)。
  • 在布局时注意热阻与散热路径:0402 尺寸小,热量集中,长期高功率工作需通过板上散热设计或升大封装实现。
  • 在电压与电流选择上,优先以功率限值(对应约 6V/10.4mA)作为设计边界;若实际工作电压接近 50V,应确保电流远低于功率限值以避免过热。

六、可靠性与环境注意

  • 该器件工作温度覆盖 -55℃ 至 +155℃,可适应较宽环境温度波动。
  • ±100ppm/℃ 的 TCR 表明随温度变化阻值变化较小,利于稳定电路设计。
  • 存储与贴装前建议防潮处理,避免长时间暴露在高湿环境中;元件易受静电损伤,贴装过程中注意 ESD 防护。

七、封装与采购信息

  • 封装:0402(国际尺寸) SMT
  • 品牌:RALEC(旺诠)
  • 常见包装形式为卷带(Tape & Reel),便于自动贴装生产。具体包装数量与订购编码请参照供应商或 RALEC 官方资料。

八、注意事项

  • 切勿仅以“允许工作电压 50V”为唯一依据进行高电压设计,应同时考虑功率限制与实际 PCB 散热条件;实际允许电压通常受限于功率对应值(约 6V)。
  • 如需在苛刻环境(高湿、强振动或严格汽车级要求)使用,请向供应商确认是否通过相关认证或考虑更高规格器件(如金属膜、合金箔或汽车级认证产品)。

若需该型号的完整数据手册(包括功率随温度的降额曲线、回流温度曲线、耐久与温度循环试验数据),可提供联系方式或我可协助检索并整理关键参数以便做元件选型与可靠性评估。

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