WMSIC Electronic Components

TA-I Technology RLM25FEER002

ModelRLM25FEER002
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLM25FEER002
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLM25FEER002
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
BM0264549176
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.

RLM25FEER002电流采样电阻产品概述

一、产品定位与核心参数

RLM25FEER002是大毅科技推出的一款贴片式电流采样电阻(分流器),专为中大功率电路的电流精准监测设计,核心参数覆盖工业级与汽车电子等场景的基础需求:

  • 阻值与精度:2mΩ(毫欧级低阻值)±1%,低阻特性减少自身功耗干扰,±1%精度满足多数电流采样的一致性要求;
  • 功率承载:2W额定功率,稳定支持持续电流(额定电流约31.6A,计算方式:(I=\sqrt{P/R}=\sqrt{2/0.002}));
  • 温度特性:±50ppm/℃温度系数,宽温范围内阻值漂移小;
  • 封装:2512标准贴片封装,适配自动化生产。

二、封装与安装特性

RLM25FEER002采用2512贴片封装,尺寸为6.35mm×3.05mm(0.25英寸×0.12英寸),符合电子行业标准化规格,具备以下安装优势:

  1. 自动化适配:可直接用于主流SMT(表面贴装技术)生产线,提升批量生产效率;
  2. 焊接可靠性:支持无铅焊接(RoHS合规),焊接温度需控制在260℃以内(回流焊)、手工焊时间不超3秒,避免热应力损坏;
  3. 空间紧凑:贴片式设计节省电路板空间,适合高密度集成系统。

三、电气性能核心优势

  1. 低阻精准采样
    2mΩ毫欧级阻值是电流采样的关键优势——自身压降仅约63mV(31.6A时),对原电路功率损耗与信号干扰极小;±1%精度可稳定输出电流反馈信号,避免因阻值偏差导致控制误差。

  2. 宽温稳定特性
    ±50ppm/℃的温度系数意味着:在-55℃~125℃工作范围内,每变化1℃阻值仅变化0.005%,大幅降低高低温波动对采样精度的影响,适合户外、工业车间等恶劣环境。

  3. 可靠功率承载
    2W额定功率可长期稳定工作,同时支持短期脉冲过载(如10倍额定功率1秒内冲击),应对电路瞬时大电流(如电机启动、电源切换)时不易损坏,提升系统抗干扰能力。

四、典型应用场景

RLM25FEER002的性能适配多类中大功率系统:

  • 电源领域:开关电源、DC-DC转换器的输出电流采样,配合过流保护实现电源安全控制;
  • 电机驱动:BLDC无刷电机、伺服电机的电流反馈,优化扭矩输出与效率,避免过载;
  • 电池管理(BMS):动力电池、储能电池的充放电电流监测,精准控制电池状态,延长寿命;
  • 工业自动化:PLC、变频器的电流检测,实现设备状态监控与故障诊断;
  • 汽车电子:车载电源、电机控制器的电流采样,满足汽车级振动、温湿度要求。

五、品牌与可靠性保障

大毅科技作为国内电阻制造领域的成熟厂商,RLM25FEER002具备完善的可靠性保障:

  • 严格测试:通过温度循环(-55℃~125℃)、湿热(85℃/85%RH)、振动(IEC 60068-2-6标准)等验证;
  • 材料可靠:采用合金电阻体+陶瓷基片封装,焊接性能优异,长期阻值漂移<0.1%(1000小时老化后);
  • 合规性:符合RoHS、REACH等环保指令,适配国际市场需求。

RLM25FEER002以高性价比、稳定性能成为中大功率电路电流监测的优选元件,覆盖工业控制、汽车电子等多行业应用。

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