WMSIC Electronic Components

RALEC LR2725-24R0005F1 LR2725

ModelLR2725-24R0005F1
Package2725
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 LR2725-24R0005F1
Type
2725
Minimum package
1000 圆盘

Technical parameters

Power
4W
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
LR2725-24R0005F1
Electronic Component
1
Package
2725
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.385g
Electronic Component
0.5mΩ
Electronic Component
1
Electronic Component
BM0265746264
Electronic Component
SMD
Electronic Component
±50ppm/℃
Resistor Type
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.

RALEC旺诠LR2725-24R0005F1电流采样分流器产品概述

一、产品核心定位与用途

RALEC旺诠LR2725-24R0005F1是一款高精度低阻值贴片电流采样分流器,核心作用是将电路中的大电流转换为可被ADC(模数转换器)测量的小电压信号(遵循欧姆定律(U=I×R)),实现电流监测、过流保护、功率控制等功能。针对大电流(≤90A)场景设计,平衡了低阻值、高功率承载与高精度采样的需求,是工业控制、新能源、消费电子等领域的常用核心器件。

二、关键电气参数深度解析

1. 低阻值与功率适配

  • 阻值:(0.5mΩ)(毫欧级),属于典型低阻分流器——既大幅降低自身功耗((P=I^2R)),又能在大电流下输出足够的电压信号(如90A时输出45mV),避免信号过弱导致的采样误差;
  • 额定功率:(4W),结合合理的PCB散热设计(如增加铜箔面积),可稳定承载持续电流或短时间脉冲电流,适配多数中功率场景。

2. 精度与温度稳定性

  • 精度:(±1%),满足工业控制、新能源等中高端应用的采样误差要求,无需额外校准即可实现可靠监测;
  • 温度系数:(±50ppm/℃),经换算,温度每变化1℃,阻值仅变化(0.005%);即使在(-40℃)至(125℃)的宽温范围内,阻值波动也控制在(0.0025mΩ)以内,避免因温度波动导致的电流误判。

3. 长期可靠性

产品经过严格老化测试,阻值长期漂移率≤(0.1%/1000)小时,符合工业级应用的稳定要求,可适配7×24小时连续工作场景。

三、封装与安装特性

采用2725标准贴片封装,具体参数为:

  • 公制尺寸:(6.9±0.2mm)(长)×(6.4±0.2mm)(宽)×(1.2±0.2mm)(高);
  • 安装方式:贴片式,兼容SMT自动化贴装线,无需额外钻孔,降低生产难度与成本;
  • 封装材料:采用耐高温、低应力的合金基底+陶瓷封装,焊接时不易变形,焊接可靠性达MIL-STD-883标准,适配无铅焊接工艺。

四、典型应用场景

1. 新能源领域

  • 新能源汽车:BMS(电池管理系统)电池包充放电电流采样、电机控制器电流反馈(实现扭矩精准控制);
  • 光伏/储能:逆变器汇流电流监测、储能电池充放电电流保护。

2. 工业控制与电源

  • 工业电源:开关电源、UPS不间断电源输出电流监测(避免过载损坏);
  • 伺服电机:驱动器电流反馈(实现高精度运动控制);
  • 工业自动化:PLC(可编程逻辑控制器)的电流信号采集。

3. 消费电子

  • 大功率快充:65W/100W充电器过流保护(精准判断充电电流是否超标);
  • 移动电源:充放电电流监测(提升续航显示准确性)。

4. 通信设备

  • 基站电源:通信设备供电电流监控(保障24小时稳定运行);
  • 数据中心:服务器电源电流监测(优化能耗管理)。

五、品牌与品质保障

RALEC(旺诠)是全球知名的精密电阻制造商,专注于分流器、功率电阻等产品研发30余年,拥有成熟的生产工艺与严格的质量管控体系:

  • 产品符合RoHS、REACH等环保标准,无铅焊接兼容;
  • 通过UL、VDE、IEC 61000等国际认证,可靠性与安全性有保障;
  • 广泛应用于汽车电子、工业自动化、新能源等对品质要求严苛的领域,市场口碑稳定。

综上,RALEC旺诠LR2725-24R0005F1分流器凭借低阻、高精度、宽温稳定与高功率承载能力,成为多领域电流采样场景的优选器件,适配从消费电子到工业级的多样化需求。

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