Principle of Resettable Current Fuses

时间： 2024-10-31 来源：XC Official Website

代理服务

技术支持

现货查询

批量订货

Resettable current fuses offer a unique solution for protecting electrical circuits while providing the convenience of being reusable. Here's how they work.

Resettable current fuses typically use a polymer-based material that changes its electrical resistance in response to an increase in current. When the current exceeds a certain threshold, the polymer material heats up and changes its state, increasing its resistance and limiting the current flow.

Once the overcurrent condition is removed, the polymer material cools down and returns to its original low resistance state, allowing the circuit to resume normal operation. This resettable feature makes these fuses highly convenient as they do not need to be replaced like traditional fuses after each overcurrent event.

The principle of operation of resettable current fuses is based on a combination of thermal and electrical properties of the polymer material. The material is designed to have a specific temperature coefficient of resistance, which determines how its resistance changes with temperature.

Resettable current fuses often have a defined trip current and hold current. The trip current is the level of current at which the fuse will activate and limit the current flow. The hold current is the maximum current that the fuse can handle without activating.

In some cases, resettable current fuses may also incorporate additional features such as overvoltage protection or reverse polarity protection to provide more comprehensive circuit protection.

resettable current fuses operate on a unique principle that combines thermal and electrical properties to provide protection for electrical circuits. Their reusable nature and convenience make them a popular choice in many applications.

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由Natalia转载自XC Official Website，原文标题为:Principle of Resettable Current Fuses，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

全部评论（0）

暂无评论

What Is The Difference between Resettable Fuses and Traditional Fuses?

PPTC and fuses both do the same job: protecting electronic circuits from overcurrent related issues. The difference is that the fuse must be replaced after tripping, while PPTC can reset itself. PPTC can handle sudden overcurrent events without the need for replacement.

2024-09-04 - 技术探讨代理服务技术支持批量订货

【技术】一文带你正确认识保险丝的熔断特性及熔化热能值

文章由旭程电子带各位工程师正确认识保险丝的熔断特性及熔化热能值。熔断特性即电流保险丝所加负载电流与保险丝熔断时间的关系，熔化热能值(I2T)是指使保险丝的熔断体熔化，部份汽化的切断电流所需要的公称能量值，简单说就是使保险丝熔断所需的最小热能值。

2021-11-05 - 技术探讨代理服务技术支持批量订货

Temperature Characteristics of Current Fuses

Current fuses exhibit specific temperature characteristics that play a crucial role in their performance and reliability. The behavior of a current fuse in response to temperature changes is determined by several factors.

2024-11-16 - 技术探讨代理服务技术支持批量订货

【经验】一文带你了解保险丝的熔断时间

保险丝的熔断时间能比较直观的反应保险丝保护性能的好坏，它是保险丝的一个重要参数，实际的熔断时间分为预飞弧时间和飞弧时间，在数据上用I-t曲线和I-t表格来体现，也叫熔断特性或安秒特性，本文旭程带你解析保险丝的熔断时间。

2021-12-21 - 设计经验代理服务技术支持批量订货

旭程保险丝选型表

提供旭程保险丝选型，操作温度-40℃至+125℃，额定电流涵盖250mA-20A，额定电压250VAC或63VDC。产品均符合RoHS、REACH法规要求，尺寸规格涵盖广。

产品型号

品类

Current Rating（额定电流:mA/A）

Voltage Rating（额定电压:VAC）

Interrupting Rating（断续额定:A）

应用等级（工业级/商业级/汽车级/军工级/航空航天级）

选型表 - 旭程立即选型

旭程（XC）温控器选型指南

目录- 公司介绍 Company Profile 温控器 Thermostat 保险丝 Fuses 企业资质与专利 Qualification and Patents Certifications

型号- C0015302Z,9K7.SK-B5,KSD305系列,9K7.SK-B3,CG-B,CG-A,SK-B1系列,9K7CG-XXX,SK-B5系列,KSD301系列,KSD307B,SK-A1,KSD307 SERIES,SK-A4,C0015301Z,9K7.SK-C2,SK-C2系列,C0025302Z,C4000302Z,KT SERIES,9K7.JW-A072,C2000302Z,CG-B系列,C0080303Z,9K7.SK-B11,JW-C系列,KSD305B,JW,KSD305-XXXX/XXXX,SK-C2,9K7SK-XXXX/XXXXX,C4000301Z,C5000301Z,SK,CG SERIES,9K4307-XXXX/XXXX,C0020302Z,CG,KT,KSD9700 SERIES,SK-B1,C5000302Z,C1000302Z,C0050303Z,SK-B5,C0035302Z,C0020303Z,C0040302Z,KSD307系列,KSD301-XXX/XXXXXX/XXX,9K7KT-XXXX/XXXXX,9K7.SK-F3,SK-F5系列,JW-B系列,C0060303Z,KSD9700,C0030301Z,KT系列,C7500301Z,C0070303Z,C0040303Z,SK-A1系列,9K9.9700-XXXXXXX,KSD305,KSD307,KT-A2,KT-A1,KSD301,C0030302Z,JW SERIES,JW系列,C0020301Z,C7500302Z,C0010302Z,9K4.307B,JW-A系列,CG-A1,C0025301Z,CG系列,KSD9700系列,C3000301Z,C2000301Z,C0030303Z,KT-A系列,SK SERIES,JW-B,JW-C,SK系列,KSD301 SERIES,KSD305 SERIES,CG-B2,C0010301Z,SK-F5,C3000302Z,SK-F6,9K7JW-XXXX,CG-A系列,KSD307-XXXX/XXXX,KT-A,9K4.307

2014/11/25 - 旭程 - 选型指南

The Role of Current Fuses in Smart Meters

Current fuses play a vital role in smart meters. Firstly, they provide protection against overcurrent events. Smart meters are used to measure and manage electricity consumption accurately. However, electrical circuits can sometimes experience sudden surges in current due to various reasons such as power outages and subsequent restoration, short circuits in the electrical grid, or the malfunction of connected electrical appliances.

2024-11-08 - 技术探讨代理服务技术支持批量订货

旭程电子于1996年成立，致力于保险管和温控器的研发生产。拥有63项处于世界领先水平的专利，国内保险丝行业仅两家VDE认可的实验室之一，所有产品均符合RoHS和REACH等法规要求。获得的ISO 9001，IATF16949，ISO14001认证要求，十亿产品的年产值，销售范围覆盖全球，与三星、美的、创维、格力、格兰仕、长虹、海信、汇川、易事特等知名客户具有长期稳定合作。

玻璃保险管分立元件保险丝微型保险丝管式保险丝贴片保险丝汽车保险丝陶瓷管高分断保险丝玻璃管低分断保险丝陶瓷管低分断保险丝集成电路器件温控器

代理服务线上商城技术资料

旭程（XC）保险丝选型指南

目录- Company Profile Fuse User's Manual Fuse Auto Fuse Fuse Holder Thermostat

型号- 06F,3S,C0015302Z,C0040302Z,3T,10C,06T,C0060303Z,4F,KSD9700,C0030301Z,6CH,C7500301Z,4T,C0015301Z,C0070303Z,4TE,C0040303Z,8TE,C0025302Z,5C,KSD305,5F,5G,C4000302Z,5H,9L,KSD301,C2000302Z,C0030302Z,10FV,C0020301Z,5S,C7500302Z,5T,C0010302Z,24F,12F,32F,C0080303Z,5SH,6B,6C,C0025301Z,6F,6G,24T,6H,12T,C3000301Z,C4000301Z,C5000301Z,2F,C2000301Z,C0030303Z,32T,R3-13,5GH,R3-12,R3-11,5CH,6S,C0020302Z,6T,2T,5TE,XC-1,BS1362,C0010301Z,C3000302Z,5TR,3F,3G,C5000302Z,C1000302Z,XC-2,C0050303Z,C0035302Z,C0020303Z

2022/2/16 - 旭程 - 选型指南 - Ver.1.0 代理服务技术支持批量订货