WMSIC Electronic Components

FC FC-SCT1090-100T-50A

ModelFC-SCT1090-100T-50A
PackageDIP
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 174870

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
FC FC-SCT1090-100T-50A
Type
FC
Minimum package
392 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FC
Electronic Component
FC-SCT1090-100T-50A
Electronic Component
1
Package
DIP
Electronic Component
10.313g
Electronic Component
1
Electronic Component
BM0265792123
Electronic Component
Electronic Component
Electronic Component
392

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

FC-SCT1090-100T-50A电流互感器产品概述

FC-SCT1090-100T-50A是方成(FC)品牌推出的一款DIP封装交流电流互感器,专为中低功率场景下的电流测量与保护设计,核心功能是将被测大电流按1:100的匝数比精准转换为可直接采样的小电流信号,兼顾精度、隔离性与实用性,适配多种工业及民用电子设备。

一、产品定位与核心应用场景

该互感器聚焦**“低成本、高可靠性”**的电流监测需求,主要应用于以下场景:

  • 工业自动化领域:电机、变频器等设备的电流过载保护与实时监测;
  • 电力配电系统:低压配电柜、配电箱的电流计量与状态检测;
  • 新能源应用:充电桩、储能系统的充电/放电电流实时采样;
  • 家电与消费电子:大型空调、洗衣机等设备的过流检测电路;
  • 测试仪器:便携式电流测试仪、万用表的电流扩展模块。

二、关键参数与性能优势

FC-SCT1090-100T-50A的核心参数与对应优势如下:

参数项 规格值 性能优势 匝数比 1:100 大电流→小电流(50A→0.5A)精准转换 额定输入电流 50A(AC) 覆盖常规工业/民用设备电流范围 隔离电压(Vrms) 2.5kV 满足高低压电路隔离安规要求 次级侧电感值 5mH 抑制高频噪声,提升信号稳定性 初级侧内阻(最大值) 0.8mΩ 对被测电路损耗极小,不干扰原电流 次级侧内阻(最大值) 1.5Ω 配合采样电阻可实现精准电压输出 封装类型 DIP(双列直插) 兼容常规PCB焊接工艺,便于批量生产

三、电气特性详解

3.1 电流转换精度

匝数比1:100为标准线性转换关系,在额定输入电流(≤50A)范围内,转换精度稳定,无明显饱和失真,可满足大多数设备的电流监测需求(如计量精度要求≤1%的场景)。

3.2 隔离性能

2.5kV(Vrms)的隔离电压符合GB/T 13070等安规标准,能有效隔离初级(高压/大电流侧)与次级(低压/小电流侧)电路,避免高低压串扰及安全隐患。

3.3 内阻特性

  • 初级内阻0.8mΩ(最大):被测电路中串联该互感器时,电压降极小(如50A输入时压降仅4mV),对原电路工作状态无明显影响;
  • 次级内阻1.5Ω(最大):次级输出端接采样电阻(如10Ω)时,总负载电阻稳定,可通过“次级电流×负载电阻”得到精准的电压采样信号(如0.5A×10Ω=5V)。

3.4 次级电感与噪声抑制

5mH的次级电感可有效衰减高频干扰信号(如开关电源噪声),提升输出信号的信噪比,保证后续电路(如ADC采样)的精度。

四、封装与可靠性设计

FC-SCT1090-100T-50A采用标准DIP封装,尺寸适配常规PCB板的插件孔位,焊接时可采用手工焊接或波峰焊工艺(建议焊接温度≤260℃,单次焊接时间≤3秒),避免封装损坏。

可靠性方面,该互感器采用耐温、耐老化的绝缘材料,长期工作在-20℃~85℃环境下性能稳定,内阻及匝数比无明显漂移,适合工业环境的连续运行需求。

五、使用注意事项

  1. 禁止次级开路:互感器次级若开路,会产生高压尖峰,可能损坏后续电路或危及安全,需始终接匹配负载(如采样电阻);
  2. 输入电流限制:实际输入电流不得超过额定50A,否则可能导致铁芯饱和,转换精度下降;
  3. 焊接规范:手工焊接时避免高温长时间接触引脚,波峰焊需控制焊接时间与温度;
  4. 抗干扰设计:安装时远离高频干扰源(如变频器、开关电源),必要时增加屏蔽措施。

六、总结

FC-SCT1090-100T-50A电流互感器以**“高性价比、高可靠性”**为核心,兼顾电流转换精度、隔离性能与安装便利性,是工业自动化、电力配电、新能源等领域电流监测与保护的理想选择,能有效降低系统设计成本,提升设备安全性与稳定性。

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