WMSIC Electronic Components

TA-I Technology RLP25FEER068

ModelRLP25FEER068
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLP25FEER068
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER068
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
68mΩ
Electronic Component
1
Electronic Component
BM0264549181
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.

RLP25FEER068 电流采样电阻产品概述

一、产品定位与核心功能

RLP25FEER068是大毅科技推出的高精度贴片电流采样分流器,专为电力电子系统中的电流检测、过流保护及功率计量设计。作为电流采样环节的核心元件,其通过“分流+电压检测”原理实现电路电流的精准测量(公式:(I = V_{drop}/R)),广泛适配工业控制、新能源、消费电子等多领域的高可靠性需求。

二、关键电气参数及应用意义

该电阻的核心参数围绕“低阻、高精度、高功率”三大采样电阻核心需求设计,具体如下:

2.1 低阻值与功率适配

  • 阻值:68mΩ(0.068Ω):属于典型的低阻分流器范畴,可在大电流场景下(如10A-50A)保持较低的电压降(例:10A电流时压降仅0.68V,20A时1.36V),避免对主电路电压/功率造成显著损耗,同时降低电阻自身发热风险。
  • 额定功率:2W:满足常规工业/消费电子的电流采样功率需求,实际应用中需结合环境温度进行降额(如100℃环境下功率降额至约1.5W),确保长期可靠性。

2.2 高精度与温度稳定性

  • 精度:±1%:远高于普通电阻的±5%精度,可有效减少电流检测误差(例:若电流检测误差要求≤1%,则电阻精度需匹配或更高),适配对计量精度敏感的场景(如BMS、充电桩)。
  • 温度系数:±50ppm/℃:温度每变化1℃,阻值变化仅0.005%,若工作温度范围为-55℃~125℃(工业级常见范围),总阻值变化≤0.9%,大幅降低温度波动对电流检测的影响。

三、封装与可靠性设计

RLP25FEER068采用2512贴片封装(英制尺寸:6.4mm×3.2mm,公制约0603),兼具高密度贴装与可靠性优势:

3.1 封装适配性

  • 适合自动化SMT贴装,生产效率高,可兼容常规PCB设计;
  • 小尺寸设计节省PCB空间,适配小型化设备(如便携电源、车载电子)。

3.2 可靠性保障

  • 采用合金电阻工艺(如锰铜合金),阻值稳定性优于碳膜/金属膜电阻,长期使用无漂移;
  • 耐温性能优异,可承受-55℃~125℃的宽温环境,抗振动/冲击能力符合工业级标准(如振动测试:10-2000Hz,1g加速度);
  • 符合RoHS 2.0、REACH环保标准,无铅焊接兼容,满足全球市场合规要求。

四、品牌与品质管控

大毅科技作为国内专业电阻制造商,RLP25FEER068的品质管控贯穿全流程:

  • 原材料选用高纯度合金,批次间阻值一致性控制在±0.5%以内(远低于标称±1%);
  • 生产过程采用全自动激光调阻,确保阻值精度;
  • 出厂前100%全检关键参数(阻值、功率、温度系数),并提供批次检测报告;
  • 产品通过UL、VDE等国际认证,可直接用于对安全认证要求严格的领域(如医疗设备、新能源充电桩)。

五、典型应用场景

RLP25FEER068的参数特性使其适配多类电流采样场景,核心应用包括:

5.1 开关电源与适配器

  • 用于AC/DC、DC/DC电源的输出电流检测,实现过流保护(OCP)、短路保护(SCP);
  • 低阻设计降低电源损耗,提升转换效率(如20W电源中,10A电流采样时损耗仅0.68W)。

5.2 电池管理系统(BMS)

  • 新能源汽车、储能电池的充放电电流检测,精准计量电池SOC(荷电状态);
  • 温度稳定性满足车载宽温(-40℃~85℃)需求,避免误判充放电状态。

5.3 变频器与电机驱动

  • 工业变频器、伺服电机的电流闭环控制,提升电机转矩精度;
  • 2W功率适配10A-30A的电机驱动电流,满足工业级负载需求。

5.4 充电桩与光伏逆变器

  • 充电桩的充电电流计量(符合国家计量标准),过流保护;
  • 光伏逆变器的并网电流检测,确保电能质量。

综上,RLP25FEER068凭借低阻、高精度、宽温稳定的特性,成为电力电子领域电流采样的高性价比解决方案,可满足从消费电子到工业级设备的多样化需求。

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