WMSIC Electronic Components

TA-I Technology RLM10FTSMR002

ModelRLM10FTSMR002
Package0805
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
RLM10FTSMR002
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLM10FTSMR002
Electronic Component
1
Package
0805
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
2mΩ
Electronic Component
1
Electronic Component
BM0264549218
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.

RLM10FTSMR002 电流采样电阻产品概述

RLM10FTSMR002是大毅科技推出的一款高精度贴片电流采样电阻,属于分流器类别,专为电路中精准检测电流信号设计,兼顾小阻值、低功耗与高稳定性,适配多类电子系统的电流反馈需求。

一、产品核心定位与功能

该电阻的核心作用是通过分流原理将电路中的大电流转换为可检测的小电压信号((V=I×R)),为电源管理、电机控制、电池监测等系统提供可靠的电流反馈依据。其小阻值(2mΩ)设计可降低自身功耗对电路的影响,同时高稳定性参数确保不同工况下检测精度的一致性,是中小功率大电流场景的理想采样元件。

二、关键性能参数深度解析

1. 阻值与精度

  • 标称阻值:2mΩ(毫欧级),属于低阻值采样电阻范畴,适合大电流(如10A以上)检测,减少电压降对电路的影响;
  • 精度等级:±1%,在贴片采样电阻中属于较高精度水平,可有效降低电流检测的绝对误差(例如15A电流下,电压误差仅±0.3mV)。

2. 功率承载能力

  • 额定功率:500mW(0.5W),结合2mΩ阻值可计算最大连续工作电流:(I=\sqrt{P/R}=\sqrt{0.5/0.002}≈15.8A),满足多数中小功率电子设备的电流采样需求(如快充电源、小型电机控制)。

3. 温度系数(TCR)

  • 温度系数:±50ppm/℃,表示环境温度每变化1℃,阻值变化约±0.005%。若工作温度波动50℃,阻值变化仅±0.25%,可显著降低温度对电流检测精度的影响,适配温度变化较大的工业或户外场景。

4. 其他性能

  • 无引线设计:贴片封装消除了引线寄生电感/电阻,提升电流响应速度,适合高频电路或快速电流变化场景。

三、封装与安装特性

RLM10FTSMR002采用0805贴片封装(英制尺寸:2.0mm×1.2mm),具备以下优势:

  1. 空间效率高:常规贴片尺寸,可节省PCB布局空间,适配高密度电路设计(如手机快充模块、小型PLC);
  2. 安装便捷:兼容标准SMT(表面贴装技术)工艺,支持自动化贴装与回流焊,降低生产难度与成本;
  3. 抗干扰性强:无引线连接减少了电磁干扰(EMI)与射频干扰(RFI),提升电路稳定性。

四、典型应用场景

该电阻的性能参数匹配多类电子系统的电流采样需求,典型应用包括:

  1. 电源管理系统:
    • 开关电源、DC-DC转换器的输出电流检测,实现过流保护与功率调节;
    • 电池管理系统(BMS)的充放电电流监测,保障电池安全与寿命。
  2. 电机控制领域:
    • BLDC无刷电机、伺服电机的电流闭环控制,精准调节扭矩与转速;
    • 小型直流电机的过流保护,防止电机过载损坏。
  3. 消费电子:
    • 手机、平板、笔记本的快充电路电流采样,确保充电效率与安全;
    • 移动电源的充放电电流监控,提升续航管理精度。
  4. 工业自动化:
    • PLC可编程逻辑控制器的电流输入检测;
    • 变频器、伺服驱动器的电流反馈回路,实现精准控制。

五、品牌与品质保障

大毅科技作为专业被动元件制造商,在电阻、电容等领域具备成熟的研发与生产能力。RLM10FTSMR002通过以下品质保障:

  1. 严格可靠性测试:经过温度循环(-55℃125℃)、湿度测试(85℃/85%RH)、振动测试(102000Hz)等,符合工业级与消费级应用的可靠性要求;
  2. 环保合规:符合RoHS、REACH等环保标准,无有害物质,适配全球市场需求;
  3. 一致性管控:生产过程中采用高精度工艺,确保批量产品的阻值、精度、TCR等参数一致性。

六、选型价值总结

RLM10FTSMR002的核心价值体现在:

  • 高性价比:小阻值高精度,兼顾性能与成本,适合批量应用;
  • 环境适应性:低TCR与宽温度范围,适配复杂工况;
  • 安装兼容性:0805封装兼容主流SMT工艺,降低生产门槛;
  • 电流承载:15A左右的连续工作电流,覆盖多数中小功率大电流场景。

综上,该电阻是一款针对电流采样需求优化的贴片分流器,可满足电源、电机、消费电子等领域的精准电流检测要求。

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