WMSIC Electronic Components

TA-I Technology RL12FTNR250

ModelRL12FTNR250
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
RL12FTNR250
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RL12FTNR250
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
250mΩ
Electronic Component
1
Electronic Component
BM0264549210
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.

RL12FTNR250 电流采样电阻产品概述

一、产品定位与核心价值

RL12FTNR250是大毅科技推出的贴片式电流采样电阻(分流器),核心作用是将电路中的电流转换为可测量的电压信号(依据欧姆定律(U=IR)),为系统控制单元提供准确的电流反馈。作为高精度低阻电阻,它适配中小功率电路的电流检测、过流保护及功率监控需求,是电源管理、电机驱动等领域的关键被动元件。

二、关键参数与性能优势

该电阻的核心参数及性能亮点如下:

  1. 阻值与精度:标称阻值250mΩ(毫欧),精度±1%——此精度级别可有效降低电流采样误差,满足大多数常规电路的检测需求,无需额外复杂校准即可实现可靠测量。
  2. 功率容量:额定功率500mW(毫瓦)——在额定功率范围内稳定工作,避免功率过载导致的阻值漂移或损坏,适配中小电流采样场景的功耗要求。
  3. 温度系数:±200ppm/℃——温度变化对阻值的影响较小,在-55℃至+155℃(电子设备常规工作温度区间)内,阻值变化可控制在合理范围,减少温度波动对测量的干扰。
  4. 低阻特性:250mΩ属于低阻电阻,采样时电压降小,不影响电路正常工作电压,同时能有效检测微小电流变化。

三、封装与安装特性

RL12FTNR250采用1206贴片封装(英制尺寸,对应公制3216,长3.2mm×宽1.6mm),具备以下优势:

  1. 小型化设计:体积紧凑,显著节省PCB布局空间,适配智能手机、便携式设备等对空间要求严格的产品。
  2. 自动化贴装:支持SMT(表面贴装技术)自动化生产,提高生产效率,降低人工成本,适合批量制造。
  3. 可靠性高:贴片焊接牢固,抗振动、抗冲击性能优于直插电阻,可适应工业设备、车载电子等振动环境。
  4. 环保合规:符合RoHS、REACH等国际环保标准,无铅无卤,满足绿色电子制造要求。

四、品牌与可靠性保障

大毅科技作为国内专业被动元件制造商,为产品提供多重可靠性保障:

  1. 参数一致性:批量生产时阻值、温系等参数一致性优异,减少不同批次间的性能差异,保障系统设计稳定性。
  2. 可靠性验证:经过高低温循环、湿度老化、振动测试等多项试验,满足工业级与消费级设备的长期工作要求。
  3. 技术支持:提供完善的产品资料与应用指导,帮助工程师快速选型与电路设计。

五、典型应用场景

RL12FTNR250适配多种电子领域的电流采样需求,典型应用包括:

  1. 开关电源系统:手机充电器、LED驱动电源、PC电源等,用于输出电流采样与过流保护,确保电源稳定输出。
  2. 电机驱动电路:小家电(扫地机器人、电风扇)、工业小电机的驱动电路中,检测电机工作电流,实现过载保护与转速控制。
  3. 电池管理系统(BMS):移动电源、电动车辅助电池、便携式储能设备的BMS中,监测充放电电流,保障电池安全与寿命。
  4. 消费电子设备:智能手机、平板电脑、智能穿戴设备的充电管理模块,检测充电电流,防止过充过放。
  5. 工业控制电路:小型PLC、传感器模块的电流监控,实现电路状态实时反馈。

六、总结

RL12FTNR250凭借高精度、低温漂、小体积、高可靠性等特点,成为电流采样场景的高性价比选择。其1206贴片封装适配自动化生产,大毅科技的品牌保障进一步提升了产品可靠性,可广泛应用于消费电子、电源、电机驱动等多个领域,满足不同场景的电流检测需求。

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