WMSIC Electronic Components

PSA FMF06FTHR005-LH FMF06FTHR005

ModelFMF06FTHR005-LH
Package1206
BrandPSA
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
PSA FMF06FTHR005-LH
Type
PSA
Minimum package
4000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
PSA
Electronic Component
FMF06FTHR005-LH
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.053g
Electronic Component
5mΩ
Electronic Component
1
Electronic Component
BM0265434717
Electronic Component
SMD
Electronic Component
±70ppm/℃
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.

FMF06FTHR005-LH 贴片电流采样电阻产品概述

一、产品核心定位与应用场景

FMF06FTHR005-LH是PSA(信昌电陶)推出的低阻值高精度贴片电流采样电阻,核心功能是实现电力电子系统中的电流监测、分流检测与反馈控制,是过流保护、功率调节、状态监测的关键被动元件。其应用覆盖多领域:

  • 新能源领域:新能源汽车、储能电站的电池管理系统(BMS)中,电池组充放电电流的实时监测;
  • 电机驱动:工业伺服电机、电动车电机的电流闭环控制,确保转矩稳定;
  • 电源系统:开关电源、快充适配器的输出电流检测,触发过流保护逻辑;
  • 工业控制:变频器、PLC的电流反馈回路,实现负载动态调节;
  • 消费电子:移动电源、无线充的电流管理,提升充电效率。

二、关键参数与性能优势

该产品围绕“低阻、高精度、稳定可靠”设计,核心参数适配主流电流采样需求:

1. 低阻值与功率能力

标称阻值5mΩ(毫欧级),是大电流采样的理想选择——100A电流下,电阻压降仅0.5V,既避免过高功耗(如100A持续工作时功耗0.5W,远低于1W额定值),又便于ADC采样(无需高压放大电路)。额定功率1W,可承受短时间过载(如电机启动峰值电流),满足动态负载场景。

2. 精度与温度稳定性

  • 精度等级±1%:满足中高端应用对电流检测准确性的要求(如BMS中电池SOC计算误差控制);
  • 温度系数(TCR)±70ppm/℃:在-55℃~125℃宽温范围内,阻值变化仅约±0.035%(按温度变化70℃计算),有效减少温漂对采样精度的影响。

3. 贴片封装适配性

采用1206(英制)贴片封装(尺寸3.2mm×1.6mm),符合主流SMT生产线要求,支持高速自动化贴装,降低生产工艺复杂度,适配高密度PCB设计。

三、封装与可靠性设计

PSA针对该产品的可靠性进行了针对性优化,确保复杂工况下的稳定性:

1. 结构设计

采用厚膜电阻技术,电阻体与96%氧化铝陶瓷基底结合牢固,抗机械应力能力强;电阻浆料均匀印刷,激光调阻实现高精度阻值控制。

2. 环境适应性

  • 工作温度范围:-55℃~125℃,耐温、耐湿(符合IEC 60068-2-6标准)、抗腐蚀性能满足工业级要求;
  • 焊接兼容性:支持回流焊、波峰焊等常规工艺,焊点可靠性符合IPC-A-610标准。

3. 功率散热

封装设计优化了热传导路径,热量可快速通过PCB散出,避免局部过热导致阻值漂移或失效。

四、品牌与制造背景

PSA(信昌电陶)是国内专注被动元件研发生产超20年的企业,产品覆盖汽车电子、工业控制、新能源等领域,核心优势:

1. 原材料管控

采用高纯度金属电阻浆料(镍铬系)与优质陶瓷基底,确保阻值一致性与长期稳定性;

2. 自动化生产

从浆料印刷、烧结到激光调阻、测试均实现全自动化,减少人为误差,每批次阻值离散度控制在±0.2%以内;

3. 可靠性测试

每只产品经过100%阻值测试、功率老化测试(1.2倍额定功率下24小时)、温漂测试,出厂合格率100%。

五、典型应用与选型参考

1. 典型应用案例

  • BMS电流采样:多只电阻并联(如4只并联为1.25mΩ),可实现200A以上大电流采样,±1%精度与低TCR确保SOC计算准确;
  • 电机驱动过流保护:电机启动峰值电流150A时,电阻功耗0.56W(150²×0.000005),远低于1W额定值,配合MCU采样实现10ms内过流切断;
  • 快充电源检测:65W快充中,采样电阻压降0.3V(60A×5mΩ),不影响输出电压精度,温漂控制确保不同温度下电流检测一致性。

2. 选型注意事项

  • 功率余量:最大工作电流需满足I²R ≤ 0.7~0.8W(留20%~30%余量),如120A电流时,I²×5mΩ=0.72W,符合要求;
  • 精度升级:若需更高精度(如±0.5%),可选择PSA同系列FMF06FTHR005-FH型号;
  • 耐温升级:若场景温度超过125℃,需考虑金属膜或合金电阻(如0805封装的合金电阻)。

六、总结

FMF06FTHR005-LH凭借低阻、高精度、宽温稳定与贴片适配性,成为新能源、电机驱动、电源系统等领域的高性价比电流采样方案。PSA的制造工艺与可靠性保障,使其可替代进口同类产品,满足国内中高端电子设备的国产化需求。

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