WMSIC Electronic Components

RALEC RTT251000FTE

ModelRTT251000FTE
Package2512
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

13 specifications

Core information

Product name
RALEC RTT251000FTE
Type
RALEC
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT251000FTE
Electronic Component
1
Package
2512
Electronic Component
0.061g
Electronic Component
1
Electronic Component
BM0265746250
Electronic Component
Electronic Component
Electronic Component
4000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

RALEC旺诠RTT251000FTE厚膜电阻产品概述

一、产品基本识别

RTT251000FTE是台湾旺诠(RALEC)推出的工业级表面贴装厚膜电阻,属于其经典厚膜电阻系列。型号命名逻辑清晰:

  • “RTT”为旺诠厚膜电阻系列代号;
  • “2512”对应封装规格(英制25mil×12mil,公制6.4mm×3.2mm);
  • “1000”表示标称阻值为100Ω(100×10⁰);
  • “FTE”为精度、功率等参数的后缀标识。
    该产品针对工业、汽车等对可靠性要求苛刻的场景设计,平衡了功率承载与宽温适应性。

二、核心性能参数详解

  1. 阻值与精度:标称阻值100Ω,精度±1%,满足多数电路(如分压、限流、采样)的精度需求,无需额外校准即可稳定工作。
  2. 功率与电压:额定功率1W,额定工作电压200V。需注意参数匹配原则:实际使用需同时满足功率≤1W和电压≤200V(如电流≤10mA时功率1W,电压1V;若电压达200V则功率400W,远超额定值,需避免)。
  3. 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±0.01Ω(100Ω×100ppm)。在-55℃~155℃范围内,阻值最大变化不超过±2.1Ω,仍处于±1%精度区间内。
  4. 工作温度范围:-55℃+155℃,覆盖工业级(-40℃125℃)、汽车级(-40℃~125℃)甚至部分极端户外环境的温度要求。

三、封装与物理特性

采用2512表面贴装封装,具备以下技术优势:

  • 尺寸紧凑:6.4mm×3.2mm的封装适配高密度PCB设计,降低设备体积;
  • 工艺适配:表面贴装工艺兼容自动化生产,大幅提升组装效率;
  • 厚膜工艺优势:通过丝网印刷电阻浆料于氧化铝陶瓷基板,经高温烧结而成——相比薄膜电阻成本更低,功率承载能力更强;
  • 散热性能:封装散热面积适中,1W功率下可稳定散热,避免局部过热导致的阻值漂移。

四、典型应用场景

RTT251000FTE因宽温、高可靠性,广泛应用于:

  1. 工业控制:PLC输入输出模块的分压限流、变频器驱动电路的电流采样、工业机器人关节控制电路;
  2. 电源模块:DC-DC转换器的反馈分压网络、开关电源的负载电阻、UPS不间断电源的保护电路;
  3. 汽车电子:发动机舱传感器信号调理、车载充电系统的过流保护、汽车仪表盘背光控制电路(适配-40℃~125℃的汽车环境);
  4. 通信设备:基站射频电路的匹配电阻、光模块的偏置电路、路由器电源滤波电阻;
  5. 消费电子:高端电源适配器的EMI滤波电阻、智能家居设备的控制电路、无人机电源管理模块。

五、可靠性与品牌优势

  1. 品牌背书:RALEC旺诠是全球知名电阻制造商,专注厚膜电阻研发30余年,产品通过ISO/TS 16949汽车级认证、RoHS/REACH环保认证;
  2. 可靠性测试:经多项严苛测试验证——负载寿命测试(1W功率+125℃,1000小时阻值变化≤±0.5%)、高温高湿测试(85℃/85%RH,1000小时阻值变化≤±1%)、振动冲击测试(10G/10~2000Hz振动、100G/1ms冲击),满足工业级长期可靠性要求;
  3. 批量一致性:批量生产阻值一致性好,单批次阻值偏差控制在±0.5%以内,降低电路调试难度。

六、环境适应性分析

除宽温范围外,该电阻还具备:

  • 抗振动冲击:表面贴装封装与厚膜结构结合,可承受运输设备、户外基站等场景的振动冲击;
  • 耐湿热腐蚀:陶瓷基板与密封封装设计,可抵御高湿度、盐雾环境下的腐蚀,延长使用寿命;
  • 抗静电:封装材料具备一定抗静电能力,避免生产过程中静电损坏。

总结

RTT251000FTE是一款高性价比的工业级厚膜电阻,兼顾精度(±1%)、功率(1W)与宽温适应性(-55℃~155℃),适合对可靠性要求较高的各类电子设备,是工业控制、汽车电子、通信设备等领域的理想选择。

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