WMSIC Electronic Components

TA-I RLH12FTCR200

ModelRLH12FTCR200
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLH12FTCR200
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLH12FTCR200
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.076g
Electronic Component
200mΩ
Electronic Component
1
Electronic Component
BM0265427475
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
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RLH12FTCR200合金电阻产品概述

一、产品基本属性

RLH12FTCR200是大毅科技推出的1206封装低阻功率合金电阻,属于其RLH系列贴片电阻产品,核心属性如下:

  • 封装规格:1206(英制,对应公制尺寸3.2mm×1.6mm×0.5mm,主流贴片封装);
  • 品牌与系列:大毅科技(Taiwan)RLH系列;
  • 阻值:200mΩ(毫欧级低阻);
  • 精度等级:±1%;
  • 额定功率:1W(常温25℃下);
  • 温度系数(TCR):±100ppm/℃;
  • 工作温度范围:-55℃至+155℃(工业级宽温覆盖)。

二、核心技术参数详解

该型号的关键参数直接决定应用适配性,具体解析如下:

  1. 阻值与精度:200mΩ属于典型低阻范围,适配电流检测、限流等分流场景;±1%精度满足工业级、消费电子的阻值一致性要求,批量应用无需额外校准。
  2. 额定功率:1W功率在1206封装中属于高功率密度设计(常规1206碳膜电阻多为0.25W~0.5W),得益于合金电阻的低漂移特性,可在有限空间承载更高功率。
  3. 温度系数(TCR):±100ppm/℃表示温度每变化1℃,阻值漂移≤0.01%(如100℃温差下漂移≤1%),这一指标在合金电阻中属中等偏优,宽温环境下性能稳定。
  4. 工作温度范围:-55℃至+155℃覆盖户外、工业控制柜等温度波动场景,若需车载应用需参考官方AEC-Q200认证状态。

三、设计特点与优势

RLH12FTCR200的设计针对性强,核心优势体现在:

  • 合金材质稳定性:采用镍铬/锰铜合金电阻体,相比碳膜电阻,抗电流冲击能力更强,长期阻值变化小;
  • 高功率密度适配小型化:1206封装体积小,1W功率满足笔记本、充电器等小型设备的电源管理需求,无需牺牲空间;
  • 宽温可靠性:宽温范围+低TCR,避免电流检测误差(如电源电路中温度对检测精度影响极小);
  • 通用封装兼容性:1206是主流贴片封装,主流SMT贴片机可直接兼容,降低组装成本;
  • 批量一致性好:±1%精度在批量生产中稳定,减少电路调试的阻值匹配工作量。

四、典型应用场景

结合参数特点,该型号主要适用于:

  1. 电源管理电路:DC-DC转换器、开关电源的电流检测电阻(分流电阻)——200mΩ可检测1A~2.5A电流(如I=√(P/R)≈2.24A),满足中等功率电源过流保护;
  2. 工业控制设备:电机驱动电路的限流电阻,保护伺服/步进电机免受过流冲击,适配工业控制柜宽温环境;
  3. 消费电子终端:笔记本、平板的电池管理模块(BMS)电流检测,以及充电器过流保护;
  4. 通信设备:基站电源、路由器的电源模块,高功率密度适配高密度PCB布局;
  5. 汽车电子(需认证场景):若符合AEC-Q200,可用于车载充电器、车灯控制电路电流检测(需参考官方规格书)。

五、应用注意事项

为保证性能稳定,使用需注意:

  • 功率降额:实际功率建议≤0.8W(额定80%),155℃高温下需进一步按规格书降额;
  • 焊接工艺:回流焊峰值温度≤260℃(持续≤10秒),手工焊温度≤350℃(持续≤3秒);
  • 散热设计:高功率/高温环境下,PCB焊盘连接铜箔面积建议≥5mm²,增强散热;
  • 阻值匹配:若需检测>3A电流,建议选更低阻值(如100mΩ)或更高功率(如2W)的同系列产品。

该型号作为大毅科技针对低阻功率场景的实用型产品,凭借稳定性能和高适配性,可满足多领域电路设计需求,具体参数以官方详细规格书为准。

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