WMSIC Electronic Components

TA-I Technology RLM10FTSMR005

ModelRLM10FTSMR005
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLM10FTSMR005
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLM10FTSMR005
Electronic Component
1
Package
0805
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
5mΩ
Electronic Component
1
Electronic Component
BM0264549213
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.

RLM10FTSMR005 精密电流采样电阻产品概述

一、产品定位与核心价值

RLM10FTSMR005是大毅科技(Taiyo Yuden) 推出的0805封装精密电流采样分流器,属于其RLM系列低阻值电阻产品线。作为专为电流检测设计的核心器件,该产品以「低阻值稳定性+高功率密度」为核心优势,精准匹配消费电子、工业自动化、电源管理等领域对电流检测精度与可靠性的双重需求,是替代传统电流互感器、霍尔传感器的轻量化、低成本方案之一。

二、关键参数与性能亮点

该产品的核心参数围绕「电流采样的精度与稳定性」优化,具体性能如下:

  1. 低阻值精准度:固定阻值5mΩ,精度等级±1%,满足多数中低端应用对电流检测的误差要求(无需额外校准即可覆盖±1%的电流检测误差);
  2. 功率密度与最大采样电流:额定功率500mW,结合低阻值特性,最大允许采样电流可达10A(由公式(I_{max}=\sqrt{\frac{P_{rated}}{R}})计算得出),可覆盖中小功率电源、电机的电流监测场景;
  3. 温度稳定性:温度系数(TCR)±50ppm/℃,在典型工作温度范围(-55℃~125℃)内,阻值漂移量不超过±0.005%,有效避免温度变化对电流检测精度的干扰;
  4. 封装与功率密度:采用0805贴片封装(尺寸2.0mm×1.2mm×0.5mm),功率密度达250mW/mm²,在小体积内实现高功率承载,适配高密度PCB设计。

三、封装设计与可靠性保障

大毅科技针对RLM10FTSMR005的封装工艺做了针对性优化,确保产品在复杂工况下的可靠性:

  1. 端电极结构:采用三层端电极设计(镍层+锡层+保护层),兼容回流焊、波峰焊等自动化贴装工艺,焊接后附着力强,抗机械应力性能优异;
  2. 环保与耐温:符合RoHS 2.0及REACH环保标准,工作温度范围宽(-55℃125℃),存储温度范围(-40℃85℃),可适应高低温交替的工业场景;
  3. 阻值稳定性:采用厚膜电阻技术,阻值一致性好,批量生产的离散度控制在±0.5%以内,减少同批次产品的参数差异。

四、典型应用场景

RLM10FTSMR005的性能匹配多领域电流检测需求,核心应用场景包括:

  1. 开关电源与适配器:用于手机、笔记本电脑适配器的输出电流检测,精准控制充电电流,避免过充过放;
  2. 电机驱动电路:小家电(如榨汁机、吸尘器)、无人机电机的过流保护与电流反馈,提升电机控制精度;
  3. 电池管理系统(BMS):小型储能电池、电动工具电池的充放电电流监测,辅助SOC(剩余电量)计算;
  4. 工业自动化设备:PLC(可编程逻辑控制器)、伺服驱动器的电流反馈回路,确保设备稳定运行。

五、选型与使用注意事项

为确保产品性能稳定,使用时需注意以下要点:

  1. 功率限制:实际使用功率不得超过额定值500mW,避免过功率导致阻值漂移或烧毁;
  2. 焊接规范:回流焊峰值温度不超过260℃,焊接时间不超过30秒;波峰焊温度不超过250℃,时间不超过5秒;
  3. 布局优化:尽量将电阻靠近电流采样点,缩短采样线路长度,减少线路压降对检测精度的影响;
  4. 存储条件:未开封产品需存储在常温(15℃35℃)、干燥(相对湿度40%60%)环境中,避免受潮影响焊接性能。

该产品凭借高性价比与稳定性能,成为中小功率电流检测场景的主流选型之一,可直接替代同类0805封装低阻值采样电阻,适配多数标准化电路设计。

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