WMSIC Electronic Components

RALEC RTT25R010FTE

ModelRTT25R010FTE
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

19 specifications

Core information

Product name
RALEC RTT25R010FTE
Type
RALEC
Minimum package
4000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT25R010FTE
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.061g
Electronic Component
10mΩ
Electronic Component
1
Electronic Component
BM0265147820
Operating Temperature
55℃~+155℃
Resistor Type
Resistor
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.

RTT25R010FTE 厚膜电流采样电阻(分流器)产品概述

一、产品定位与核心身份

RTT25R010FTE是台湾旺诠(RALEC)推出的厚膜电流采样电阻(分流器),属于低阻值高精度功率型贴片电阻,核心作用是通过“电压降检测”实现电路电流的采样与反馈,广泛适配电源管理、电机控制、汽车电子等对电流精度与稳定性要求较高的场景。

二、关键参数深度解析

该产品的核心参数直接决定应用边界,具体解析如下:

  1. 阻值与精度:标称阻值10mΩ(毫欧级低阻),精度±1%——低阻设计可在大电流采样时降低自身功率损耗(如10A电流下压降仅0.1V),避免对电路功率平衡的干扰;±1%精度满足工业级电流检测的误差控制需求,防止反馈信号偏差导致系统误动作;
  2. 功率额定值:连续工作功率1W——结合阻值计算,最大连续电流可达10A(公式:(I=\sqrt{P/R}=\sqrt{1/0.01}=10A)),峰值电流可承受更高(需参考厂商降额曲线),适配中等功率电路的电流采样;
  3. 工作温度范围:-55℃~+155℃——覆盖工业级宽温需求,可稳定工作于极端环境(如高温工业炉、低温户外设备),无需额外温度补偿电路;
  4. 封装尺寸:2512(英制尺寸6.4mm×3.2mm)——贴片式封装,兼容自动化SMT贴装工艺,节省PCB布局空间。

三、封装与工艺特性

  1. 封装结构:采用2512贴片封装,以氧化铝陶瓷基板为支撑,表面印刷厚膜电阻浆料,两端镀镍/锡电极——电极设计兼容回流焊、波峰焊等标准焊接工艺,焊接可靠性高,焊点抗脱落性能优异;
  2. 厚膜工艺优势:相比绕线电阻(体积大、高频性能差)和薄膜电阻(功率低、成本高),厚膜电阻平衡了功率密度、稳定性与成本:烧结后的电阻层附着力强,耐冲击振动,且批量生产时阻值一致性好(偏差可控在规格范围内);
  3. 热管理设计:陶瓷基板具有良好导热性,可快速将工作时产生的热量传导至PCB,避免局部过热导致阻值漂移,延长产品使用寿命。

四、典型应用场景

基于参数特性,RTT25R010FTE主要适配以下场景:

  1. 电源管理系统:开关电源、DC-DC转换器的输出电流采样,配合过流保护电路实现过载切断;电池管理系统(BMS)的充放电电流监测,提升电池能效与循环寿命;
  2. 电机控制领域:BLDC无刷电机、伺服电机的电流反馈环节,通过精准电流调节实现扭矩控制与转速稳定;工业变频器的电流检测,优化电机能效与运行平稳性;
  3. 汽车电子:车载充电器(OBC)、电机控制器(MCU)的电流采样,宽温特性适配汽车舱内/舱外的温度变化(如发动机舱高温、冬季低温);
  4. 工业自动化:PLC可编程逻辑控制器、机器人关节驱动器的电流监测,抗振动特性满足工业设备的运动需求;
  5. 消费电子:高端快充充电器的电流限制,避免过充损坏设备;无人机动力系统的电流反馈,提升飞行稳定性与续航效率。

五、可靠性与环境适应性

  1. 温度稳定性:厚膜电阻的温度系数(TCR)处于合理范围(通常±100ppm/℃左右),宽温下阻值漂移小,保证不同环境温度下采样精度的一致性;
  2. 耐环境性能:-55℃低温无脆化,+155℃高温连续工作无失效;封装结构防潮性好,可适应湿度变化较大的环境(如沿海地区设备);
  3. 抗干扰性:低阻设计减少自身噪声,陶瓷基板降低寄生电感/电容,适合高频电路的电流采样(如开关电源的高频纹波检测)。

六、选型优势总结

相比同类低阻采样电阻,RTT25R010FTE具有以下核心优势:

  1. 精度与成本平衡:±1%精度满足多数工业场景,厚膜工艺降低成本,适合批量应用;
  2. 宽温适配性:-55~155℃覆盖车规级与工业级需求,无需额外降额设计;
  3. 空间效率高:1W功率集成于2512小封装,节省PCB空间,适配小型化设备;
  4. 品牌可靠性:旺诠RALEC作为专业电阻厂商,产品一致性好,供货稳定,提供完整的质量认证(如RoHS、REACH)。

该产品凭借“低阻高精度、宽温稳定、小封装大功率”的特性,成为电流采样场景的高性价比选择,可满足多数工业与消费电子领域的电流检测需求。

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