WMSIC Electronic Components

TA-I Technology RLP25FEER120

ModelRLP25FEER120
Package2512
BrandElectronic Component
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLP25FEER120
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER120
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
120mΩ
Electronic Component
1
Electronic Component
BM0264549184
Electronic Component
SMD
Electronic Component
±50ppm/℃
Resistor Type
Current Sense Resistor
Electronic Component
Electronic Component

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

大毅科技RLP25FEER120电流采样电阻产品概述

大毅科技RLP25FEER120是一款针对电流检测与功率监控设计的精密贴片分流电阻,采用成熟合金电阻工艺,具备低阻值稳定性、宽温可靠性等特点,广泛适配工业自动化、新能源、消费电子等领域的电流采样需求。

一、产品定位与核心价值

该电阻属于中等功率精密电流采样电阻,通过分流原理将电路电流转换为可检测电压(U=I×R),核心价值在于:平衡采样精度与成本,实现宽温环境下的稳定工作,同时适配自动化生产的贴片封装设计,满足多场景电流检测需求。

二、关键参数及性能优势

RLP25FEER120的核心参数围绕“精度、稳定性、功率适配”展开,具体如下:

  • 阻值与精度:120mΩ(毫欧级低阻值),精度±1%,满足工业级、消费级设备的基础电流检测需求,无需额外校准即可实现准确测量;
  • 功率容量:2W额定功率,结合2512贴片封装(6.4mm×3.2mm),散热效率符合设计规范,理论最大电流约129A(I=√(P/R)),实际应用建议留50%余量(≤64A);
  • 温度系数:±50ppm/℃,阻值随温度变化漂移极小——100℃温差下仅漂移0.6mΩ(变化率0.5%),确保-55℃~125℃宽温环境下的采样稳定性;
  • 封装与安装:2512贴片封装,适配标准PCB制程,便于自动化贴装,降低生产难度与成本,同时抗振动性能良好,适合车载、工业等振动场景。

三、设计特点与可靠性

大毅科技针对该型号的设计优化,重点提升了低阻值稳定性与环境适应性:

  1. 低阻值工艺:采用合金电阻膜技术,减少低阻值下的寄生效应,确保阻值长期稳定(老化漂移率≤0.1%/1000小时);
  2. 宽温可靠性:温度系数控制在±50ppm/℃,覆盖工业级温区,避免极端温度导致的阻值漂移,提升设备长期可靠性;
  3. 抗振动性能:贴片封装结构紧凑,焊接后与PCB结合牢固,可承受10G以上振动测试,适合户外、车载等场景;
  4. 低寄生参数:引脚短、封装紧凑,寄生电感与电容极小,适合高频电路中的电流采样(如快充模块、逆变器)。

四、典型应用场景

RLP25FEER120的参数特性使其适配多领域电流采样需求,典型场景包括:

  • 新能源领域:电动车BMS(电池充放电电流检测)、光伏逆变器(发电电流监控)、储能系统(功率平衡检测);
  • 工业自动化:变频器(电机电流矢量控制)、伺服驱动器(过载保护)、PLC模块(电流监测);
  • 消费电子:智能手机快充模块(充电电流检测)、移动电源(输出电流监控)、笔记本适配器(过流保护);
  • 电源系统:服务器电源(模块电流分配)、LED驱动电源(输出电流调节)、UPS电源(电池状态检测)。

五、选型与使用注意事项

为确保该电阻发挥最佳性能,选型与使用需注意以下几点:

  1. 电流余量:实际采样电流需小于额定功率对应的最大电流(留50%余量),避免功率过载导致阻值漂移;
  2. 精度匹配:若需更高精度(如±0.5%),可换用大毅同系列高精度型号(如RLP25FEER120F);
  3. 温度环境:确认工作温度是否在-55℃~125℃范围内,超出需换用高温型电阻;
  4. 焊接工艺:采用标准回流焊工艺,避免过度焊接导致封装损坏,影响散热与稳定性。

综上,大毅科技RLP25FEER120以“高性价比、宽温稳定、易生产”为核心优势,是中功率电流采样场景的可靠选择,可满足多领域设备的电流检测与监控需求。

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