WMSIC Electronic Components

TA-I Technology RLM10FTSMR001

ModelRLM10FTSMR001
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
RLM10FTSMR001
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLM10FTSMR001
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.082g
Electronic Component
1mΩ
Electronic Component
1
Electronic Component
BM0264899871
Operating Temperature
55℃~+170℃
Electronic Component
±50ppm/℃
Electronic Component
Electronic Component
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

大毅科技RLM10FTSMR001精密合金电阻产品概述

大毅科技(TAI-TECH)推出的RLM10FTSMR001是一款针对高精度电流检测、功率回路限流等场景设计的低阻值精密合金电阻,凭借紧凑的0805封装、宽温适应性及稳定的电气性能,成为工业、汽车电子等领域的高性价比选型。

一、产品核心身份与技术定位

RLM10FTSMR001属于大毅科技“精密合金电阻系列”,聚焦低阻值、高精度、宽温稳定三大核心需求,解决传统电阻在大电流检测、高温环境下精度漂移、功率不足的痛点。其设计目标明确:适配高密度PCB布局,满足工业级/汽车级可靠性要求,同时控制成本。

二、关键电气性能参数解析

该电阻的核心参数围绕“低阻高精度”优化,具体如下:

  • 阻值与精度:标称阻值1mΩ(毫欧),精度±1%——远高于常规电阻±5%的精度等级,可满足电池管理系统(BMS)、电机驱动等对电流采样精度敏感的场景;
  • 温度系数(TCR):±50ppm/℃——表示温度每变化1℃,阻值变化为百万分之五十,在低阻值合金电阻中属于中等偏优水平,有效抑制温区内的阻值漂移;
  • 功率特性:基于0805封装的合金电阻设计,额定功率约0.5W(需结合降额曲线使用),支持最大约22A的瞬时电流(计算:(I=\sqrt{P/R}=\sqrt{0.5/0.001}\approx22.4A)),适配中等功率回路的限流/采样需求。

三、宽温环境适应性设计

RLM10FTSMR001的工作温度范围为-55℃~+170℃,覆盖工业级(-40+85℃)及汽车级(-40+125℃)的宽温需求,甚至可兼容部分高温工业场景(如发动机舱、高温传感器附近)。结合±50ppm/℃的TCR,温区内阻值变化稳定:

  • 温差ΔT=170℃ - (-55℃)=225℃;
  • 阻值变化量=1mΩ×50ppm/℃×225℃=0.01125mΩ(约1.125%),仍在±1%精度范围内,保证极端温度下的性能一致性。

四、0805封装与物理特性

采用0805贴片封装(英制尺寸:2.0mm×1.2mm,公制:2012),具备以下优势:

  • 紧凑性:适配高密度PCB设计,可在小尺寸电路板上集成更多功能模块(如电动车BMS的多通道电流采样);
  • 工艺兼容性:支持标准SMT回流焊、波峰焊工艺,焊接可靠性高,抗振动、冲击能力优于插件电阻;
  • 封装可靠性:大毅科技采用自主封装技术,封装材料耐焊接热(回流焊峰值温度可达260℃),长期使用无开裂、氧化风险。

五、典型应用领域

RLM10FTSMR001的性能特点使其广泛应用于以下场景:

  1. 汽车电子:电动车BMS的单节/模组电流检测、电机驱动电路限流、车载充电器(OBC)功率监控;
  2. 工业控制:变频器/伺服驱动器电流采样、工业机器人关节电机限流、高温传感器信号调理;
  3. 消费电子:大功率电源适配器过流保护、移动电源放电电流监控、游戏主机电源管理;
  4. 通信设备:基站电源电流监控、光纤设备功率回路限流、5G小基站电源模块。

六、应用注意事项

  1. 电流降额:实际使用需根据环境温度、散热条件降额(如70℃环境下,降额至额定功率的80%),避免过热损坏;
  2. PCB布局:因阻值极低(1mΩ),需缩短走线长度、靠近采样点,减少铜箔寄生电阻对精度的干扰;
  3. 焊接工艺:遵循0805封装标准回流焊曲线(预热区150180℃,恒温区200220℃,峰值温度≤260℃,时间≤10s),避免过温影响性能。

总结

大毅科技RLM10FTSMR001凭借1mΩ低阻值、±1%高精度、±50ppm/℃稳定TCR、-55~170℃宽温范围及0805紧凑封装,成为工业、汽车电子等领域电流检测与功率限流的高性价比解决方案。其平衡了性能与成本,适配多种恶劣环境,是替代进口低阻电阻的优质选型。

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