WMSIC Electronic Components

TA-I Technology RLH25FEER560

ModelRLH25FEER560
Package2512
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
RLH25FEER560
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLH25FEER560
Electronic Component
1
Package
2512
Electronic Component
Current Sense Resistor / Shunt
Electronic Component
±1%
Electronic Component
0.064g
Electronic Component
560mΩ
Electronic Component
1
Electronic Component
BM0265427466
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.

RLH25FEER560 采样电阻产品概述

一、产品核心定位与应用场景

RLH25FEER560是大毅科技推出的一款高精度贴片采样电阻,专为电路电流检测、过流保护等核心功能设计,广泛适配工业电源、新能源、消费电子及电机驱动四大领域。作为采样电阻,其核心作用是将电路中的电流信号转化为可检测的电压信号(遵循欧姆定律U=IR),为后续控制电路提供准确的电流反馈,是电子设备实现安全稳定运行的关键元件之一。

二、关键技术参数解析

该电阻的参数完全匹配工业级应用的精准性与可靠性需求,核心参数如下:

  1. 阻值与精度:标称阻值560mΩ(毫欧级低阻值),精度±1%——低阻值设计可降低功耗并适配大电流场景,±1%的精度满足多数工业设备对电流检测的误差要求,无需额外校准即可实现可靠反馈;
  2. 功率等级:额定功率2W——在电流检测中,功率公式为(P=I^2R),2W功率可支持最大连续工作电流(I=\sqrt{P/R}\approx1.89A),适配中等功率电路的电流监测;
  3. 温度系数:±100ppm/℃——该参数表示阻值随温度变化的速率(1ppm=百万分之一),±100ppm/℃意味着温度每变化1℃,阻值变化仅0.01%,可有效降低环境温度波动对采样精度的影响;
  4. 封装与安装:采用2512贴片封装,兼容SMT自动贴装工艺,便于大规模生产,同时封装尺寸紧凑(约6.4mm×3.2mm),节省电路板空间。

三、封装与工艺优势

RLH25FEER560采用2512标准贴片封装,兼具小型化与散热性,工艺上具备三大优势:

  • 材料选型:采用合金电阻材料(如锰铜或康铜),相比普通碳膜/金属膜电阻,合金材料的温度系数更低、稳定性更强,长期使用阻值漂移小;
  • 散热设计:2512封装的焊盘面积较大,可有效将电阻产生的热量传导至电路板,避免局部过热影响性能;
  • 环保合规:采用无铅焊接工艺,符合RoHS、REACH等全球环保标准,适配国际市场需求。

四、可靠性与环境适应性

该电阻针对工业级环境进行了优化,可靠性表现优异:

  • 宽温工作:支持-55℃至125℃的工作温度范围(典型值),可适应户外设备的低温环境与电源内部的高温环境;
  • 抗振动冲击:贴片封装焊接牢固,可承受10G/50-2000Hz的振动测试与100G/1ms的冲击测试,适配车载、工业自动化等振动场景;
  • 长期稳定性:经老化测试后,阻值变化率小于0.5%(典型值),可保证设备长期运行的可靠性。

五、典型应用案例

  1. 开关电源过流保护:在AC-DC适配器或DC-DC转换器的输出端串联,当输出电流超过阈值时,电阻两端电压触发保护电路,切断输出避免设备损坏;
  2. 新能源BMS电流监测:用于电动汽车、储能电池的BMS系统,实时检测充放电电流,结合电压、温度数据判断电池状态,防止过充过放;
  3. 电机驱动控制:伺服电机、BLDC电机的驱动电路中,检测电机绕组电流,实现精准调速与过载保护,提升电机运行效率;
  4. 消费电子快充:手机、笔记本电脑的快充充电器中,检测充电电流,动态调整输出功率,平衡充电速度与电池寿命。

RLH25FEER560凭借高精准度、宽温适应性与可靠性能,成为工业与消费电子领域电流检测场景的优选采样电阻。

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