WMSIC Electronic Components

Milliohm LRS2512-3WR005F LRS2512

ModelLRS2512-3WR005F
PackageSMD,6.4x2.8mm
BrandMilliohm
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
Milliohm LRS2512-3WR005F
Type
MILLIOHM
Minimum package
1000 圆盘

Technical parameters

Power
3W
Electronic Component
Electronic Component
Electronic Component
MILLIOHM
Electronic Component
LRS2512-3WR005F
Electronic Component
1
Package
SMD,6.4x2.8mm
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.094g
Electronic Component
5mΩ
Electronic Component
1
Electronic Component
BM0264487178
Electronic Component
SMD
Electronic Component
20ppm/℃~+75ppm/℃
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.

LRS2512-3WR005F 贴片采样电阻产品概述

一、产品核心定位与功能价值

LRS2512-3WR005F是一款高精度贴片电流采样电阻(分流器),专为小体积、大功率场景下的精准电流检测设计。其核心功能是通过低阻值特性将被测电流转换为可测量的电压信号(遵循欧姆定律(I=V/R)),广泛应用于电源、电池管理、电机驱动等领域,是实现电流监控、过流保护、功率控制的关键元器件。

二、关键性能参数深度解析

该产品的性能参数围绕“低阻、高精度、大功率”三大核心需求设计,具体如下:

  1. 阻值与精度:标称阻值5mΩ(毫欧级),精度±1%——低阻值可降低采样电路的功率损耗,±1%的高精度确保电流计算的准确性,避免因阻值偏差导致的监控误差;
  2. 功率容量:3W额定功率——根据功率公式(P=I^2R),在5mΩ下可支持最大约24.5A的持续电流采样((I=\sqrt{3W/0.005Ω}≈24.5A)),满足中大功率设备的电流检测需求;
  3. 温度系数(TCR):20ppm/℃+75ppm/℃——温度变化对阻值的影响极小(例如温度升高100℃,阻值最大漂移0.75%),可适应宽温环境(常规覆盖-40℃+125℃),确保极端场景下性能稳定;
  4. 封装规格:SMD 6.4x2.8mm(2512封装)——符合国际贴片封装标准,体积紧凑,适配高密度PCB布局。

三、封装与安装适配性

LRS2512-3WR005F采用表面贴装(SMD)2512封装,具备以下安装优势:

  • 体积紧凑:6.4mm(长)×2.8mm(宽)的尺寸,可有效节省PCB空间,适合小型化、高密度的电子设备设计;
  • 工艺兼容:支持回流焊、波峰焊等自动化贴装工艺,无需额外人工焊接,提升生产效率并降低成本;
  • 散热可靠:贴片封装的热传导路径短,配合PCB铜箔可快速散发热量,避免因功率损耗导致的温度累积,保障长期稳定运行。

四、品牌与可靠性保障

该产品由Milliohm(毫欧)品牌出品,该品牌专注毫欧级电阻研发近20年,在低阻器件领域具备成熟的技术积累:

  • 产品经过高温老化、温度循环、湿度测试等可靠性验证,满足工业级标准(部分场景可覆盖车规级需求);
  • 阻值一致性好,批量生产中精度偏差控制在±1%以内,减少后期校准成本;
  • 抗冲击、抗振动性能优异,适合车载、工业自动化等振动环境下的应用。

五、典型应用场景拓展

LRS2512-3WR005F因性能均衡,可覆盖多领域的电流采样需求:

  1. 电源系统:开关电源、DC-DC转换器的输出电流监控,配合保护电路实现过流/短路保护;
  2. 电池管理系统(BMS):电动车、储能电站的充放电电流检测,精准计算电池SOC(荷电状态),提升电池使用寿命;
  3. 电机驱动:伺服电机、BLDC无刷电机的电流反馈,实现精确的转矩与转速控制;
  4. 工业自动化:PLC、变频器、伺服驱动器的电流监测,保障设备安全稳定运行;
  5. 消费电子:大功率快充充电器、移动电源的电流检测,优化充电效率并防止过充过放。

总结来说,LRS2512-3WR005F以“低阻高精度、大功率、小体积”为核心优势,适配多场景电流采样需求,是电子设备中实现电流监控与保护的高性价比选择。

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.