WMSIC Electronic Components

TA-I Technology RLP25FEER050

ModelRLP25FEER050
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
RLP25FEER050
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER050
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.084g
Electronic Component
50mΩ
Electronic Component
1
Electronic Component
BM0264549189
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.

大毅科技RLP25FEER050 贴片电流采样电阻产品概述

一、产品核心定位与应用方向

RLP25FEER050是大毅科技推出的2512封装高功率贴片电流采样电阻,属于分流器类器件,核心用于需要精准电流检测且功率需求达2W的电子系统。其设计兼顾精度、功率密度与可靠性,覆盖工业、电源、汽车电子(辅助系统)等多个领域的典型场景,是替代传统插件分流器的主流贴片方案之一。

二、关键参数与性能解析

该产品的核心参数直接支撑其应用价值,具体解析如下:

  • 阻值与精度:标称阻值50mΩ,精度±1%——满足工业级电流检测的基础精准度要求,例如在10A电流下,采样电压误差≤5mV(50mΩ×10A×1%),可匹配多数MCU/ADC的采样分辨率;
  • 功率能力:额定功率2W,2512封装下功率密度约10W/cm²(封装面积6.4mm×3.2mm=20.48mm²),支持低电压大电流场景的持续工作;
  • 温度系数(TC):±50ppm/℃——温度每变化1℃,阻值变化仅±2.5μΩ,若环境温度波动100℃(如-40℃~60℃),阻值总变化≤0.5%,有效降低温度对采样精度的影响;
  • 封装规格:2512(英制)贴片封装,尺寸6.4mm×3.2mm×0.55mm(典型),兼容自动化贴装生产线,适配多数PCB布局空间。

三、可靠性与工艺设计

大毅科技针对该产品的工艺优化,重点提升了可靠性与环境适应性:

  1. 基片与电阻材料:采用高导热氧化铝陶瓷基片+镍铬合金箔电阻体,既保证电阻的温度稳定性,又通过陶瓷基片快速散发热量,避免功率集中导致的过热失效;
  2. 焊接兼容性:支持无铅回流焊、波峰焊,焊接温度曲线符合IPC-J-STD-020标准,可通过3次回流焊(峰值温度260℃),焊接后无开裂、虚焊风险;
  3. 耐环境性能:工作温度范围-55℃155℃,存储温度-65℃155℃,符合MIL-STD-202G等可靠性标准,可适应工业现场的高低温、湿度变化;
  4. 抗浪涌能力:可承受10倍额定功率(20W)的短时间(10ms)浪涌冲击,满足电源启动、电机启动等瞬间大电流场景的可靠性要求。

四、典型应用场景示例

RLP25FEER050的参数特性使其在以下场景中具有明显优势:

  1. 开关电源/DC-DC模块:用于输出电流采样,例如12V/6A电源的电流反馈,2W额定功率可覆盖持续工作需求,±1%精度保证输出电流稳定;
  2. 电池管理系统(BMS):电动自行车、便携式储能设备的充放电电流检测,低TC特性可避免温度变化导致的采样误差,提升电池SOC计算精度;
  3. 伺服电机/BLDC驱动:电机运行时的电流反馈控制,精准检测扭矩电流,防止过载损坏,同时贴片封装便于驱动板的紧凑设计;
  4. 工业变频器:输出侧电流采样,配合保护电路实现过流保护,高功率密度适配变频器内部的高密度布局。

五、选型与使用注意事项

为确保产品性能稳定,需注意以下几点:

  1. 功率裕量设计:实际工作电流应低于额定电流(≈6.3A,由P=I²R计算),建议预留20%~30%裕量,避免长期满功率工作导致阻值漂移;
  2. 温度补偿考虑:若应用场景温度波动超过100℃,可通过软件或硬件补偿(如并联温度传感器)进一步提升采样精度;
  3. PCB布局优化:采样电阻应尽量靠近电流路径的低阻抗区域,避免与高频信号线并行,减少寄生电感对高频采样的干扰;
  4. 焊接工艺管控:回流焊时需控制升温速率(≤2℃/s),峰值温度不超过260℃,焊接后需检查引脚焊接完整性,避免虚焊导致的阻值异常。

RLP25FEER050作为大毅科技的成熟贴片采样电阻,以高功率密度、稳定的温度特性和工业级可靠性,成为中高端电子设备电流检测的可靠选择,适配多领域的主流应用需求。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.