WMSIC Electronic Components

TA-I RLH12FTCR110

ModelRLH12FTCR110
Package1206
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
RLH12FTCR110
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLH12FTCR110
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.035g
Electronic Component
110mΩ
Electronic Component
1
Electronic Component
BM0264899885
Electronic Component
SMD
Electronic Component
±100ppm/℃
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.

大毅科技RLH12FTCR110采样电阻产品概述

一、产品定位与核心属性

RLH12FTCR110是大毅科技推出的贴片式高精度电流采样电阻,核心功能是将电路中的电流信号转换为可检测的电压信号,为过流保护、电流反馈控制等场景提供基础支撑。该产品属于大毅“RLH”系列低阻值功率电阻,针对工业控制、电源管理、电池系统等领域的电流检测需求设计,兼顾高精度、小体积、高功率密度三大核心优势。

二、关键技术参数详解

RLH12FTCR110的参数完全匹配低阻值采样电阻的典型应用要求,具体如下:

  • 阻值:110mΩ(毫欧级低阻值,适合大电流场景下的电压信号采集,避免过高功耗);
  • 精度:±1%(常温25℃下的阻值偏差,满足中高端电子设备的电流测量误差要求);
  • 额定功率:1W(1206封装下的功率容量,需结合温度降额设计确保长期可靠性);
  • 温度系数(TCR):±100ppm/℃(温度每变化1℃,阻值变化±100×10⁻⁶,100℃温差下阻值变化≤±1%,保证宽温区采样精度一致性);
  • 封装尺寸:1206(英制尺寸,对应公制3.2mm×1.6mm,体积紧凑);
  • 安装方式:表面贴装(SMD,无引脚设计,适配自动化贴装生产线)。

三、封装与安装特性

3.1 1206封装的尺寸与优势

RLH12FTCR110采用标准1206贴片封装,具体尺寸为:长3.2±0.2mm、宽1.6±0.2mm、厚度0.5±0.1mm。该封装具有以下优势:

  • 体积紧凑:大幅节省PCB布局空间,适配高密度集成设计;
  • 兼容性强:符合主流电子设备贴装工艺标准,无需特殊治具;
  • 散热均衡:封装散热面积适中,配合PCB铜箔可有效导出1W功率产生的热量。

3.2 安装注意事项

  • 回流焊需遵循大毅推荐参数(峰值温度260℃±5℃,回流时间≤30秒),避免过温导致阻值漂移;
  • 贴装时确保焊盘与电阻电极对齐,焊接后无虚焊、桥接缺陷;
  • 手工焊接建议用恒温烙铁(温度≤350℃,焊接时间≤3秒),避免局部过热损坏。

四、核心性能特点

  1. 低阻值高精度匹配:110mΩ毫欧级阻值可在大电流下输出足够电压(如10A电流时输出1.1V),±1%精度确保电流测量误差可控;
  2. 宽温区稳定性:±100ppm/℃的TCR在-55℃~125℃范围内阻值变化极小,适合极端环境下的工业应用;
  3. 高功率密度:1W功率集成在1206封装内,功率密度达约1.95W/cm²,满足空间受限场景需求;
  4. 环保与可靠性:符合RoHS 2.0、REACH标准,通过1000小时额定功率负载测试(阻值变化≤±1%),长期可靠性有保障。

五、典型应用场景

RLH12FTCR110广泛适用于以下领域:

  • 电源管理:开关电源、适配器的输出电流检测,过流保护电路;
  • 电池管理系统(BMS):锂电池组充放电电流监测,过充/过放保护,均衡控制;
  • 电机驱动:直流伺服电机、BLDC电机的电流反馈,精准速度/扭矩控制;
  • 工业控制:变频器、PLC的负载电流检测,自动化设备安全保护;
  • 消费电子:笔记本电脑、移动电源的电流监测,快充电路功率控制。

六、可靠性与环境适应性

大毅科技对该产品进行了全面可靠性验证:

  • 工作温度范围:-55℃~125℃(覆盖工业级与汽车级部分场景);
  • 耐焊接热:通过260℃回流焊测试,无阻值漂移或结构损坏;
  • 长期稳定性:1000小时负载测试后,阻值变化≤±1%,TCR变化≤±50ppm/℃;
  • 耐湿性:符合JESD22-A101标准,湿度环境下性能稳定。

该产品以高性价比、稳定可靠的特性,成为电子设备电流采样环节的优选元件。

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