WMSIC Electronic Components

TA-I RL12FTNR680

ModelRL12FTNR680
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
RL12FTNR680
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RL12FTNR680
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
680mΩ
Electronic Component
1
Electronic Component
BM0264549220
Electronic Component
SMD
Electronic Component
±200ppm/℃
Resistor Type
Metal Film 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.

RL12FTNR680 电流采样电阻产品概述

一、核心产品定位

RL12FTNR680是大毅科技推出的一款1206封装贴片电流采样电阻(分流器),属于精密功率型电阻范畴,专为中小功率电路中的电流检测、过载保护及电源管理场景设计。该产品通过优化阻值精度与温度稳定性,满足消费电子、工业控制等领域对电流信号精准采集的需求,是实现电路电流闭环控制、功率监测的关键基础元件。

二、关键技术参数深度解析

  1. 阻值与精度:标称阻值680mΩ(0.68Ω),精度等级±1%,在常规应用中可直接满足电流采样的精准度要求,无需额外校准(特殊高精度场景可搭配后续电路补偿)。
  2. 功率承载能力:额定功率500mW,对应1206封装的功率密度适中,可稳定承载最大电流约850mA(根据I=√(P/R)计算:√(0.5W/0.68Ω)≈0.85A),适合中小功率电路的电流检测。
  3. 温度系数(TCR):±200ppm/℃,表示温度每变化1℃,阻值变化约0.0002%。以典型工作温度范围-40℃~125℃为例,阻值最大变化量约为680mΩ×0.0002×165≈22.44mΩ,可有效降低温度波动对电流采样精度的影响。
  4. 环保认证:符合RoHS 2.0、REACH等国际环保标准,无铅封装,适配现代电子制造的环保要求。

三、封装与安装特性

采用1206封装(英制尺寸:0.12"×0.06",公制尺寸:3.2mm×1.6mm),属于贴片电阻的常规封装类型,具备以下优势:

  • 体积紧凑:占用PCB面积小,适合高密度电路设计(如智能手机电池保护板、小型电源模块);
  • 安装便捷:适配SMT(表面贴装技术)流水线作业,回流焊/波峰焊工艺兼容性好,可实现高效量产;
  • 散热可靠:1206封装的焊盘面积适中,可通过PCB铜箔有效传导电阻工作时产生的热量,保障功率稳定。

四、典型应用场景

RL12FTNR680的参数特性使其在多领域具有广泛适用性:

  1. 消费电子:智能手机、平板电脑、笔记本电脑的电池保护板(BMS)电流采样,电源适配器的输出电流监测;
  2. 工业控制:小型电机驱动电路的过流保护,PLC模拟量输入模块的电流检测,小型工业电源的功率监测;
  3. 汽车电子:低功率车载设备(如仪表盘、胎压监测传感器、车载充电器)的电流采样,辅助实现设备工作状态监测;
  4. 通信设备:基站电源分配单元(PDU)的支路电流检测,小型路由器、交换机的电源管理模块。

五、品牌与可靠性保障

大毅科技作为国内领先的被动元件制造商,在电阻制造领域拥有多年技术积累,RL12FTNR680具备可靠的量产稳定性:

  • 工艺控制:采用高精度合金电阻工艺,阻值一致性好,批量生产误差可控;
  • 可靠性测试:通过高温老化(125℃/1000h)、湿度循环(85℃/85%RH/500h)等可靠性测试,满足工业级应用的环境适应性;
  • 供应保障:具备稳定的产能,可支持批量订单交付,适合电子产品量产需求。

RL12FTNR680凭借精准的参数性能、紧凑的封装及可靠的品牌背书,是中小功率电路电流采样场景的高性价比选择。

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