WMSIC Electronic Components

TA-I Technology RLP25FEGMR007

ModelRLP25FEGMR007
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
RLP25FEGMR007
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
3W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEGMR007
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
7mΩ
Electronic Component
1
Electronic Component
BM0264549169
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.

RLP25FEGMR007 电流采样电阻产品概述

一、产品定位与核心属性

RLP25FEGMR007是大毅科技推出的贴片式电流采样电阻/分流器,专为高精度、大电流场景下的电流检测设计。作为电路中电流信号的“感知元件”,其核心作用是通过阻值分压实现电流与电压的线性转换,为过流保护、功率监控、反馈控制等功能提供准确电信号输入,广泛适配工业控制、电源系统、电池管理等领域的电路需求。

二、核心电气参数详解

RLP25FEGMR007的参数针对采样电阻核心需求优化,关键指标如下:

1. 阻值与精度

  • 标称阻值:7mΩ(毫欧),属于典型低阻采样范畴——低阻设计可显著降低自身压降损耗,避免干扰原电路功率,同时适配大电流场景(电流与压降成正比,低阻可在相同电流下输出可检测的低电压信号);
  • 精度等级:±1%,满足多数工业级、消费级电路的高精度采样需求,无需额外校准即可实现可靠检测。

2. 功率与电流承载

  • 额定功率:3W(25℃环境下长期稳定工作);结合阻值计算,额定电流约为20.7A(公式:(I=\sqrt{P/R}=\sqrt{3W/0.007Ω})),峰值电流可进一步提升(需参考降额曲线,常规场景满足中大功率需求)。

3. 温度系数(TCR)

  • 温度系数:±50ppm/℃,表示温度每变化1℃,阻值变化±50×10⁻⁶Ω。以25℃为基准,若环境温度升至100℃(变化75℃),阻值漂移仅±0.0075%,即阻值范围在6.999475mΩ7.000525mΩ之间,温度稳定性优异,适配宽温环境(典型工作温度:-55℃125℃)。

三、封装与安装特性

RLP25FEGMR007采用2512贴片封装(尺寸约5.0mm×6.4mm×1.2mm),具备以下优势:

  1. 自动化适配:无引线设计兼容SMT生产线,可通过贴片机高速贴装,提升生产效率;
  2. 空间紧凑:小尺寸适合高密度PCB设计,尤其在电源模块、BMS等空间受限场景中优势明显;
  3. 可靠性高:贴片焊接减少引线寄生电感/电阻影响,焊点机械强度稳定,抗振动、抗冲击性能优于直插电阻。

四、性能特点总结

RLP25FEGMR007在同类产品中具备核心优势:

  • 低阻高精度平衡:7mΩ低阻与±1%精度结合,既保证大电流采样信号可测性,又避免精度偏差导致的控制误判;
  • 宽温稳定:±50ppm/℃温度系数,确保极端环境下阻值漂移极小;
  • 高功率密度:2512封装承载3W功率,功率密度约93.75mW/mm²,远高于普通贴片电阻(如1206封装仅0.25W);
  • 兼容性强:可直接对接运放、ADC等采样电路,无需额外阻抗匹配。

五、典型应用场景

RLP25FEGMR007适配多领域需求:

  1. 电源系统:开关电源、UPS的输出电流采样,实现过流保护、恒流控制;
  2. 电池管理系统(BMS):动力电池、储能电池的充放电电流监测,精准控制SOC(荷电状态);
  3. 电机驱动:伺服电机、BLDC电机的电流反馈,优化转速与扭矩控制;
  4. 工业控制:变频器、PLC的电流监测,实现设备故障诊断与保护;
  5. 消费电子:大功率PD充电器、移动电源的电流采样,提升充电效率与安全性。

综上,RLP25FEGMR007以低阻、高精度、宽温稳定为核心优势,是中大功率电路电流检测的可靠选择。

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