WMSIC Electronic Components

FC FC-SCT5.0-1:50-20A FC-SCT5.0-1

ModelFC-SCT5.0-1:50-20A
PackageSMD
BrandFC
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 Option 174848

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
FC FC-SCT5.0-1: 50-20A
Type
FC
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FC
Electronic Component
FC-SCT5.0-1:50-20A
Electronic Component
1
Package
SMD
Electronic Component
0.9g
Electronic Component
1
Electronic Component
BM0265792138
Electronic Component
Electronic Component
Electronic Component
1000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

FC-SCT5.0-1:50-20A电流互感器产品概述

一、产品定位与核心价值

FC-SCT5.0-1:50-20A是方成(FC)品牌推出的表面贴装式(SMD)电流互感器,针对工业自动化、新能源监测、电力仪表等场景的小体积、高精度、高集成度需求设计。其核心价值在于通过优化匝数比与内阻设计,实现“高隔离、低损耗、易匹配”的平衡——既满足电气安全隔离要求,又能在不干扰被测回路的前提下,将大电流信号转换为便于MCU、ADC采集的小电流信号,适配各类数字/模拟采集电路。

二、关键技术参数解析

该产品的核心参数围绕“信号转换精度+电气安全+损耗控制”三大维度设计,具体解析如下:

1. 电流转换与线性度

匝数比1:50决定了初级输入电流与次级输出电流的线性比例:当额定输入电流为20A时,次级可稳定输出0.4A(20A÷50),线性度符合工业级标准(通常≤0.5%FS),避免信号失真;若被测电流为5A(非额定值),次级输出为0.1A,比例一致性保持良好。

2. 电气隔离安全

1.5kV(Vrms)的隔离电压满足《IEC 60044-1》等标准要求,可有效防止高压回路(如光伏组件、电机绕组)的电压串扰至采集端,保障人员与低电压电路(如控制板、仪表)的安全。

3. 低损耗设计

  • 初级内阻0.75mΩ(最大值):被测回路中互感器的压降仅为0.75mΩ×20A=15mV,几乎不影响原电路的电流/电压,适合对回路损耗敏感的场景(如光伏组件电流监测);
  • 次级内阻1.5Ω(最大值)+ 500uH电感:500uH电感可抑制高频噪声,1.5Ω内阻则避免次级信号衰减过度,便于后续电路(如运算放大器、ADC)直接匹配,无需额外阻抗调整。

三、封装与可靠性设计

1. SMD封装优势

采用小型表面贴装封装(具体尺寸参考方成官方 datasheet,通常为3×5mm级),适配自动化贴片生产线,大幅提升生产效率;同时节省PCB空间,适合高密度电路设计(如微型电力仪表、服务器电源模块)。

2. 可靠性保障

方成针对该产品做了多项可靠性优化:

  • 耐温范围:支持-40℃~85℃工业级温度,适应极端环境(如北方户外光伏设备、南方高温车间)的长期运行;
  • 抗振动冲击:符合GB/T 2423.10振动试验标准,可承受10G20G的振动(102000Hz),适合工业现场的机械应力环境;
  • 隔离层稳定性:采用耐高温绝缘材料,长期使用无老化、无爬电现象,保障隔离性能的10年以上可靠性。

四、典型应用场景

该产品因性能平衡,覆盖多领域的电流采集需求:

1. 工业自动化

电机、变频器的电流监测与过流保护——SMD封装便于集成到PLC、变频器控制板中,1.5kV隔离防止电机高压干扰控制电路;

2. 新能源领域

光伏汇流箱、储能系统的电流采集——低内阻不影响光伏组件发电效率,高隔离满足汇流箱内多回路安全要求;

3. 电力仪表

电流表、功率因数表的信号转换——将20A以内大电流转换为0.4A小电流,适配仪表模拟输入接口;

4. 智能家居

智能插座、家电控制器的负载监测——小型封装适合智能家居紧凑设计,精准采集电器电流,实现能耗统计与过流保护;

5. 服务器电源

服务器电源模块的电流监测——高密度电路中SMD封装节省空间,低损耗保证电源效率,过流保护防止电源损坏。

五、选型与使用注意事项

1. 电流匹配

被测回路持续电流≤20A,峰值电流≤24A(额定值1.2倍),避免磁芯饱和导致信号失真;

2. 次级负载

次级输出端负载电阻(含后续电路输入电阻)建议≤20Ω(0.4A×20Ω=8V,避免电压过高),同时适配500uH电感的50/60Hz工频响应;

3. 焊接规范

SMD焊接需遵循回流焊温度曲线(峰值240℃~260℃,时间≤10s),避免手工焊接温度过高损坏封装;

4. 环境防护

避免安装在潮湿、多尘或强电磁干扰(如高压电缆附近)环境,必要时增加屏蔽层。

总结

FC-SCT5.0-1:50-20A凭借“小体积、高隔离、低损耗”的核心优势,成为工业、新能源、电力等领域20A以内电流采集场景的高性价比选择,适配自动化生产与高密度电路设计需求。

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