WMSIC Electronic Components

TA-I Technology RLP25FEER002

ModelRLP25FEER002
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
RLP25FEER002
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER002
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
2mΩ
Electronic Component
1
Electronic Component
BM0264549202
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RLP25FEER002电流采样电阻产品概述

一、产品定位与核心价值

RLP25FEER002是大毅科技推出的高精度功率型贴片电流采样电阻,属于该品牌功率电阻系列的核心型号。其核心定位为中高功率场景提供精准、稳定的电流检测解决方案,兼顾功率承载能力与安装便利性。作为电流分流器,该电阻通过将电路中的大电流转换为可测量的低电压信号(V=I×R),实现对电流的实时监控,广泛适配工业控制、新能源、电源设备等对精度和可靠性要求较高的领域。

二、关键性能参数深度解析

该型号的性能参数围绕“低阻、高精度、高功率”三大核心设计,具体解析如下:

  1. 阻值与精度:标称阻值2mΩ,精度±1%。低阻值设计是电流采样电阻的关键——在几十安至数百安的大电流场景下,可避免产生过高的压降损耗;±1%的精度在同类2512封装电阻中处于中高端水平,能有效控制电流检测的系统误差(如将整体误差控制在1.5%以内,满足多数工业级应用需求)。
  2. 功率承载能力:额定功率2W,符合2512贴片封装的功率密度上限(该封装常规功率范围为1~3W)。在额定功率下长期工作时,电阻表面温度可稳定在<85℃的安全范围,避免过热导致的阻值漂移或失效。
  3. 温度系数(TCR):±50ppm/℃。该参数表示温度每变化1℃,阻值变化百万分之五十。以-55℃至125℃的工业级工作温度范围为例,阻值最大变化量仅为0.018mΩ,相对变化率约0.9%,保证了不同环境温度下采样精度的一致性。
  4. 封装与安装:采用标准2512贴片封装(尺寸约6.4mm×3.2mm),兼容常规SMT自动化贴装产线,可大幅提升客户生产效率;同时节省PCB空间,适合高密度电路设计。

三、封装与工艺特性

RLP25FEER002的封装及工艺设计直接支撑了其性能优势:

  1. 电阻体与基板:采用锰铜合金电阻体(低温度系数、低电阻率特性),搭配高导热氧化铝陶瓷基板,既保证阻值稳定性,又能快速散发热量,避免功率集中导致的温度升高。
  2. 阻值微调工艺:通过激光微调技术实现阻值精准控制,确保±1%精度的一致性,批量生产时良品率可达99%以上。
  3. 表面处理与环保:采用无铅镀锡表面处理,符合RoHS、REACH等全球环保法规,同时提升焊接兼容性(焊接温度范围220~260℃),降低虚焊风险。
  4. 可靠性测试:产品经过高低温循环测试(-55℃125℃,1000次循环)、湿热测试(85℃/85%RH,1000小时)、振动测试(102000Hz,加速度1g)等,满足工业级可靠性要求。

四、典型应用场景

该型号的性能特点使其适配多种中高功率电流采样场景:

  1. 新能源领域:电动车BMS(电池充放电电流检测,10200A)、光伏逆变器(直流侧电流监控,50300A)、储能系统(充放电电流监测,20~150A)。
  2. 工业控制:伺服电机驱动器(电机电流反馈,5100A)、变频器(输出电流检测,10200A)、PLC模块(模拟量电流采集,0~50A)。
  3. 电源设备:开关电源(输出电流限制,030A)、UPS不间断电源(电池充放电监测,1080A)、LED驱动电源(电流调节,0~10A)。

五、选型优势与市场竞争力

对比同类2512封装采样电阻,RLP25FEER002具备以下优势:

  1. 精度与温系的平衡:±1%精度+±50ppm/℃温系,优于多数竞品的±2%精度或±100ppm/℃温系,适合医疗设备、高端电源等精度敏感场景。
  2. 功率密度优势:2W功率在2512封装下,功率密度比1W型号提升100%,可减少并联电阻数量,简化电路设计。
  3. 品牌可靠性:大毅科技作为国内功率电阻龙头企业,产品一致性好,售后服务完善,适合批量采购的客户。
  4. 成本效益:在相同性能参数下,价格比进口品牌(如Vishay、KOA)低20%~30%,性价比突出。

综上,RLP25FEER002凭借精准的电流采样能力、稳定的功率承载及高性价比,成为工业控制、新能源等领域电流检测的优选型号。

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