WMSIC Electronic Components

TA-I Technology RL12FTNR750

ModelRL12FTNR750
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RL12FTNR750
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RL12FTNR750
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
750mΩ
Electronic Component
1
Electronic Component
BM0264549223
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.

RL12FTNR750电流采样电阻产品概述

一、产品基本识别信息

RL12FTNR750是大毅科技推出的一款贴片式电流采样电阻(分流器),采用行业通用的1206封装(尺寸约1.2mm×0.6mm),专为中低电流场景的精确采样设计。型号命名逻辑清晰:“RL”代表大毅低阻电阻系列,“12”对应1206封装规格,“FT”标识500mW功率等级,“NR”为±1%精度+±200ppm/℃温度系数组合,“750”直接对应标称阻值750mΩ,是市场上应用广泛的常规采样电阻之一。

二、核心参数详细说明

该电阻的核心参数针对电流采样需求做了针对性设计,具体如下:

  1. 阻值与精度:标称阻值750mΩ(毫欧),精度±1%——实际阻值范围为742.5mΩ~757.5mΩ,无需额外校准即可满足多数设备的采样精度要求,避免因阻值偏差导致的电流检测误差。
  2. 额定功率:500mW(毫瓦)——25℃环境下可长期稳定工作的最大功率,环境温度升高时需按降额曲线使用(如100℃时功率降至约300mW),确保不超过电阻最大允许功耗。
  3. 温度系数(TCR):±200ppm/℃——温度每变化1℃,阻值变化±0.0002%。例如,温度从25℃升至85℃(变化60℃),阻值变化仅±0.012%,在-55℃~125℃宽温范围内仍能保持稳定,适合户外或工业高温场景。
  4. 封装与安装:1206贴片封装,兼容自动化SMT贴装工艺(生产效率高),同时支持手工焊接(需控制焊接温度≤260℃、时间≤10秒),适配不同生产场景。

三、性能特点分析

RL12FTNR750针对电流采样的核心需求,具备以下差异化优势:

  • 低阻高灵敏:750mΩ低阻值可在电流通过时产生适中压降(如1A电流下压降0.75V),既便于后续运放/ADC采样(无需放大倍数过高),又不会因压降过大消耗过多功率,平衡采样精度与能效。
  • 精度与稳定性兼顾:±1%精度覆盖90%以上常规采样需求,±200ppm/℃温度系数远优于普通碳膜电阻(普通碳膜TCR通常>1000ppm/℃),避免温度波动导致的采样误差。
  • 小体积大集成:1206封装体积仅0.72mm²,可在有限PCB空间内实现多路电流采样,满足笔记本、无人机等便携设备的小型化要求。
  • 可靠性验证:通过大毅科技的1000小时负载寿命测试(70℃环境、1.2倍额定功率),阻值变化率≤0.5%,符合IEC 61000国际标准,批量供货一致性好,适合量产应用。

四、典型应用场景

该电阻广泛应用于以下领域,解决不同场景的电流采样需求:

  1. 电源管理系统:DC-DC转换器、开关电源的输出电流检测(防止过流损坏负载);PD3.0快充适配器的电流反馈控制(确保充电安全与效率)。
  2. 电池管理系统(BMS):电动车、储能电池的充放电电流监测(实时反馈电池状态,避免过充过放);笔记本电脑电池的电流采样(优化续航管理)。
  3. 电机驱动电路:无刷直流电机(BLDC)、伺服电机的电流闭环控制(提升转速稳定性);工业机器人关节电机的电流检测(保障运动精度)。
  4. 消费电子设备:智能手机快充电路、平板电脑的电池保护模块;扫地机器人的电机电流采样(延长设备寿命)。
  5. 工业控制设备:PLC模拟量输入模块、变频器的电流反馈回路(实现精准工业自动化控制)。

五、品牌与可靠性背书

大毅科技作为国内被动元器件领域的资深厂商,专注电阻研发生产20余年,产品覆盖汽车级、工业级、消费级全场景。RL12FTNR750具备以下品牌优势:

  • 环保合规:符合RoHS2.0标准,无铅无卤,适配全球市场要求;
  • 认证齐全:部分批次通过AEC-Q200汽车级认证,可满足严苛的汽车电子应用(如车载充电系统);
  • 工艺可靠:采用激光微调技术确保阻值精度与一致性,批量供货良率>99.5%,降低客户生产损耗。

综上,RL12FTNR750凭借“低阻高精度、宽温稳定、小体积易集成”的特点,成为中低电流采样场景的高性价比选择,适用于从消费电子到工业控制的多领域应用。

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.