WMSIC Electronic Components

TA-I Technology RLH12FTCR360

ModelRLH12FTCR360
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
RLH12FTCR360
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLH12FTCR360
Electronic Component
1
Package
1206
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.035g
Electronic Component
360mΩ
Electronic Component
1
Electronic Component
BM0265427462
Electronic Component
SMD
Electronic Component
±100ppm/℃
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RLH12FTCR360 高精度功率采样电阻产品概述

一、产品定位与核心应用场景

RLH12FTCR360是大毅科技针对中功率电子设备电流采样需求设计的贴片电阻,聚焦「准确电流检测+中功率耐受+成本可控」三大核心,广泛覆盖电池管理系统(BMS)、开关电源、电机驱动、工业控制等领域,是实现电流反馈、过流保护与恒流控制的关键元件。

二、关键参数解析与性能优势

2.1 核心参数精准匹配采样需求

  • 阻值360mΩ(0.36Ω):低阻设计平衡电压降与功耗——1.66A持续电流下产生约0.6V电压降(V=I×R),既便于ADC采样,又避免电阻过热;
  • 精度±1%:优于普通碳膜电阻(5%~1%),满足BMS单体电池充放电、电源输出电流的准确测量需求;
  • 功率1W(持续):支持中功率设备持续工作,短时间峰值电流可耐受至2.5A(功耗0.72W,仍在安全范围);
  • 温度系数±100ppm/℃:电阻随温度变化的比例低(每升温100℃,阻值变化±0.01%),比普通厚膜电阻(300~500ppm/℃)稳定,适配温度波动大的工业/车载环境;
  • 1206贴片封装:体积小巧(3.2mm×1.6mm),兼容自动化贴装,节省PCB空间,适配高密度电路。

2.2 性能优势总结

  • 低阻+高精度:兼顾大电流检测与测量准确性;
  • 中功率耐受:满足多数中功率设备持续工作需求;
  • 温漂稳定:减少温度对电流采样的干扰;
  • 贴片易集成:适合批量生产与高密度电路设计。

三、封装与可靠性设计

RLH12FTCR360采用合金电阻芯+陶瓷基板结构(采样电阻常用锰铜/康铜合金,温漂低、稳定性好),结合1206封装的可靠性设计:

  1. 焊接兼容性:支持回流焊、波峰焊(需符合大毅推荐温度曲线),焊接后阻值变化≤0.5%;
  2. 耐温范围:工作温度-55℃125℃,存储温度-65℃150℃,适配车载、工业严苛环境;
  3. 抗机械应力:符合IEC 60068-2-6(振动:10~2000Hz,1g)、IEC 60068-2-27(冲击:1500m/s²)标准;
  4. 长期稳定性:125℃、1000小时老化后阻值变化≤0.2%,适合储能系统等长期运行设备。

四、典型应用场景说明

4.1 电池管理系统(BMS)

电动车、储能电池的单体电池充放电电流检测:RLH12FTCR360串联电池回路,通过电压降计算电流,1%精度可准确判断充放电状态,避免过充/过放;低阻设计减少电池回路功耗,提升续航。

4.2 开关电源模块

AC-DC/DC-DC电源的输出电流采样:用于过流保护(电流超阈值切断输出)与恒流控制(如快充电源恒流模式),1W功率满足65W~100W中功率电源需求。

4.3 电机驱动电路

BLDC电机、伺服电机的相电流采样:矢量控制需稳定相电流信号,RLH12FTCR360低温漂特性避免电机发热导致的检测误差,提升控制精度。

4.4 工业控制设备

PLC、变频器的负载电流检测:工业环境温度波动大(0℃~50℃),±100ppm/℃温漂可保证电流检测误差≤0.05%,确保设备稳定运行。

五、选型与应用注意事项

  1. 功率裕量计算:持续电流≤√(1/0.36)≈1.66A,峰值电流建议≤2.5A(短时间);
  2. 焊接工艺:回流焊峰值温度控制在220℃~245℃,避免损坏电阻芯;
  3. 布线优化:采样电阻两端布线≤5mm,减少寄生电感/电容干扰(低阻电阻电压降小,寄生参数易影响精度);
  4. 环境适配:125℃以上需按大毅降额曲线使用(如150℃时功率降额至0.5W);
  5. 精度升级:若需0.1%精度,可选择同系列RLH12FTCR360F。

六、总结

RLH12FTCR360是大毅科技推出的高性价比中功率采样电阻,精准匹配电流检测需求,兼顾精度、功率与可靠性,广泛适用于工业、车载、消费电子等领域。其贴片封装与稳定性能,使其成为批量生产与高密度电路设计的优选元件。

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