WMSIC Electronic Components

TA-I Technology RLT10FTIR002

ModelRLT10FTIR002
Package0805
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
RLT10FTIR002
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
750mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLT10FTIR002
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.031g
Electronic Component
2mΩ
Electronic Component
1
Electronic Component
BM0264899870
Operating Temperature
55℃~+155℃
Electronic Component
±50ppm/℃
Electronic Component
Electronic Component
Electronic Component
5000

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RLT10FTIR002合金电阻产品概述

一、产品定位与品牌基础

大毅科技作为国内专注被动元器件研发制造的企业,其RLT10FT系列合金电阻以低阻值、高功率密度、宽温稳定性为核心优势,覆盖工业控制、汽车电子、电源管理等领域。RLT10FTIR002作为该系列代表型号,采用0805标准贴片封装(尺寸2.0mm×1.2mm),兼顾小型化与性能表现,是替代传统低阻值电阻的优选方案。

二、核心电气参数深度解析

RLT10FTIR002的参数设计精准匹配低阻值应用场景,关键指标如下:

  • 阻值与精度:标称阻值2mΩ(毫欧级),精度±1%——远高于常规碳膜电阻(±5%~±10%),可满足电池管理系统(BMS)等对电流采样精度要求较高的场景;
  • 功率容量:额定功率750mW——在0805封装下实现了较高的功率密度(常规0805贴片电阻额定功率多为500mW),能有效承载大电流负载下的功率损耗;
  • 温度系数(TCR):±50ppm/℃——意味着温度每变化1℃,阻值变化仅0.005%;在-55℃~+155℃宽温范围内,阻值漂移可控制在0.5%以内,避免因温度波动导致的采样误差;
  • 工作温区:-55℃~+155℃——覆盖工业级与汽车级环境要求,可在极端高低温场景下稳定工作(如户外储能设备、汽车发动机舱周边电路)。

三、材料与设计的性能支撑

RLT10FTIR002采用镍铬合金电阻体(部分型号结合锰铜合金优化),相比传统金属膜电阻具有以下优势:

  1. 低寄生参数:贴片封装设计紧凑,寄生电感<1nH、寄生电容<0.1pF,适合高频电路中的电流采样;
  2. 抗浪涌能力:合金电阻体的耐冲击电流能力是碳膜电阻的2~3倍,可承受瞬间10倍额定电流的浪涌(符合IEC 61000-4-5标准);
  3. 长期稳定性:经加速老化测试(1000小时+125℃)后,阻值变化率<0.1%,远优于行业平均水平。

四、典型应用场景匹配

结合参数特点,RLT10FTIR002的核心应用场景包括:

  • 电池管理系统(BMS):用于动力电池组的单体电压/电流采样,2mΩ阻值可在大电流(如135A以内,70%功率降额)下将功率损耗控制在合理范围;
  • DC-DC转换器:作为功率回路的电流检测电阻,低阻值降低转换损耗,宽温稳定性适配车载电源等场景;
  • 工业变频器:用于电机驱动电路的电流反馈,抗振动与宽温特性满足工业现场的严苛要求;
  • 新能源汽车电子:多数型号通过汽车级AEC-Q200认证,可用于车载充电机、电机控制器等模块。

五、选型与应用注意事项

为确保性能稳定,应用时需注意:

  1. 焊接工艺:因阻值极低(2mΩ),焊接点寄生电阻(通常<1mΩ)可能影响精度,建议采用回流焊工艺,避免手工焊接导致的焊点差异;
  2. 功率降额:实际使用功率建议不超过额定功率的70%(即525mW),延长使用寿命并降低温度对阻值的影响;
  3. 散热设计:0805封装的散热依赖PCB铜箔,建议在电阻焊盘周围增加1~2层铜箔(面积≥5mm²),降低热阻;
  4. 过流保护:虽耐浪涌,但需配合保险丝或PTC元件,避免持续过流导致电阻烧毁。

六、行业价值与替代方案

相比同封装同阻值的竞品(如国巨、风华高科对应型号),RLT10FTIR002的优势在于TCR更低(竞品多为±100ppm/℃)、功率更高,且大毅科技的本地化服务可快速响应定制需求(如阻值微调、封装改型)。对于追求高性价比与可靠性的客户,是理想的替代方案。

综上,大毅科技RLT10FTIR002合金电阻凭借低阻值、高精度、宽温稳定与高功率密度的综合优势,成为工业控制、汽车电子等领域的可靠被动元件选择,适配多种严苛应用场景的性能需求。

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