WMSIC Electronic Components

TA-I Technology RLP25FEER180

ModelRLP25FEER180
Package2512
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
RLP25FEER180
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER180
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
180mΩ
Electronic Component
1
Electronic Component
BM0264549163
Electronic Component
SMD
Electronic Component
±50ppm/℃
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.

RLP25FEER180 电流采样电阻产品概述

RLP25FEER180是大毅科技推出的一款贴片式电流采样电阻(分流器),专为中功率场景下的精准电流检测设计,平衡了精度、功率承载与成本控制,广泛适配工业控制、电源管理等领域的电流反馈需求。

一、产品定位与核心价值

作为面向通用型电流检测的分流器,RLP25FEER180的核心价值在于**“精准可靠+高性价比”**:既满足±1%的工业级精度要求,又能在2512小封装内实现2W持续功率承载,避免了高精度型号的成本冗余,也解决了低功率电阻在大电流场景下的功耗过载问题。其设计初衷是为自动化设备、电源系统等提供稳定的电流采样信号,支撑过流保护、功率监控等核心功能。

二、关键技术参数详解

RLP25FEER180的技术参数经过针对性优化,适配电流检测的核心需求:

  • 阻值与精度:180mΩ(0.18Ω)低阻设计,配合±1%的精度,可实现大电流下的低压降采样(如3A电流时压降仅0.54V),减少对后端电路的干扰;
  • 功率承载:持续功率2W,结合阻值计算最大持续电流约3.3A(I=√(P/R)),若为短时间脉冲场景,峰值功率可达10W(大毅科技官方可提供具体脉冲特性);
  • 温度系数(TCR):±50ppm/℃,意味着温度每变化1℃,阻值相对变化仅±0.005%(以180mΩ为基准),例如在-40℃~125℃宽温范围内,阻值漂移小于±0.15mΩ(相对变化±0.083%),保证宽温场景下的采样精度稳定;
  • 封装规格:2512贴片封装(英制尺寸,对应公制6.4mm×3.2mm),符合主流自动化贴装工艺要求,节省PCB空间。

三、封装与安装特性

RLP25FEER180采用2512贴片封装,具备以下安装优势:

  • 工艺兼容性:支持回流焊、波峰焊等主流贴片工艺,焊接参数遵循大毅科技标准(如回流焊峰值温度260±5℃,焊接时间≤30秒),避免焊接过程对电阻性能的影响;
  • 散热设计:封装底部内置散热焊盘,需配合PCB设计中较大面积的铜箔(建议焊盘铜箔面积≥10mm²),确保2W功率下的热量快速散出,避免局部过热导致阻值漂移;
  • 尺寸紧凑:2512封装比传统插件电阻节省约70%的PCB空间,适合高密度电路设计(如电源模块、BMS子板)。

四、典型应用场景

RLP25FEER180的性能参数覆盖多个核心应用领域:

  1. 开关电源与适配器:输出电流采样,配合PWM控制器实现过流保护、恒流充电;
  2. 工业控制设备:电机驱动板的电流检测,PLC模拟量输入的电流信号采集;
  3. 新能源领域:电池管理系统(BMS)的模组电流采样(适配10-20A脉冲场景)、充电桩的电流监控;
  4. 通信设备:基站电源的电流反馈,光模块的功率监控;
  5. 消费电子:快充充电器的电流检测,智能家电的功率管理。

五、可靠性与性能优势

对比同类2512封装采样电阻,RLP25FEER180具备以下优势:

  • 精度一致性:大毅科技采用激光微调工艺,批量产品精度一致性优于±0.5%(典型值),避免不同批次电阻的采样误差;
  • 宽温稳定性:TCR±50ppm/℃在-55℃~125℃范围内性能稳定,适合户外设备(如光伏逆变器)或高低温环境下的工业设备;
  • 抗冲击性:贴片封装结构抗振动、抗冲击,满足IEC 60068-2-6振动测试要求(10-2000Hz,1g加速度),适合车载、机器人等移动场景;
  • 成本可控:在保证±1%精度和2W功率的前提下,价格比高精度型号(±0.1%)低30%以上,适合中大规模量产。

六、选型与使用注意事项

为确保RLP25FEER180的性能发挥,需注意以下几点:

  1. 电流范围匹配:持续电流不超过3.3A,脉冲电流需控制在峰值功率10W以内(对应峰值电流约7.45A,持续时间≤1秒);
  2. 散热设计:PCB焊盘需增加铜箔厚度(建议≥1oz),并避免靠近发热元件(如MOS管),防止热耦合导致阻值漂移;
  3. 精度需求:若需更高精度(如±0.1%),需选择大毅科技的RLP系列高精度型号(如RLP25FEER180F);
  4. 焊接规范:避免手工焊接时温度过高(≤350℃)或时间过长(≤5秒),防止损坏电阻内部结构。

总结来看,RLP25FEER180是一款性能均衡、可靠性高的贴片电流采样电阻,适合大多数工业与消费电子场景的电流检测需求,是替代传统插件分流器的理想选择。

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