Professional Knowledge of Self-healing Fuses

时间： 2023-11-30 来源：XC News

代理服务

技术支持

批量订货

The operating principle of a self-healing fuse is a dynamic balance of energy. The current flowing through the self-healing fuse generates a certain amount of heat due to the thermal effect of the current (self-healing fuses all have resistance values), and the generated heat is completely or partially dissipated into the environment. The heat that is not dissipated will increase the temperature of the self-healing fuse components. The temperature during normal operation is relatively low, and the heat generated and dissipated reaches a balance.

The self-healing fuse element is in a low resistance state, and the self-healing fuse does not operate. When the current flowing through the self-healing fuse element increases or the ambient temperature increases, but if the balance between the generated heat and the emitted heat is reached, the self-healing fuse still does not operate. When the current or ambient temperature increases again, the self-healing fuse will reach a higher temperature. If the current or ambient temperature continues to increase at this point, the heat generated will be greater than the heat dissipated, causing a sudden increase in the temperature of the self-healing fuse element.

At this stage, a small temperature change will cause a significant increase in resistance. At this point, the self-healing fuse element is in a high resistance protection state, and the increase in impedance limits the current. The current drops sharply in a short period of time, thus protecting the circuit equipment from damage, As long as the heat generated by the applied voltage is sufficient to dissipate the heat from the self-healing fuse element, the self-healing fuse element in a changing state can remain in operation (high resistance). When the applied voltage disappears, the self recovery fuse can automatically recover.

Fig.1

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由三年不鸣转载自XC News，原文标题为:temperature regulating mattress protector.Professional knowledge of self restoring 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

Self Recovery Fuse Specification, Must Understand

Each type of circuit protection component has specifications, and self recovery fuses are no exception. So, what do you think when holding a self-healing fuse specification book? To put it bluntly, when reading the specifications, the main focus is on the parameters and the meanings they represent.

2023-12-02 - 技术探讨代理服务技术支持批量订货

Description of Metal Materials for Self Recovering Fuses

PPTC self-healing fuses play a role in limiting current and achieving circuit protection. There are various specifications and models of self-healing fuses. This article introduces the metal materials used for Self Recovering Fuses.

2024-09-10 - 技术探讨代理服务技术支持批量订货

熔断器两端的材料都有什么？

熔断器两端的材料都有什么？本文中旭程来给大家介绍一二，希望对各位工程师有所帮助。熔断器两端的材料主要包括铜和铜合金，这是因为铜及其合金具有一系列适合熔断器应用的特性。

2024-05-29 - 技术探讨代理服务技术支持批量订货

Experience in Selecting Self Recovering Fuses

Do you have any good experience to share in selecting self recovering fuses? Self recovery fuse is an overcurrent electronic protection component, which is made of high molecular weight organic polymers under high voltage, high temperature, and sulfurization reaction conditions, mixed with conductive particle materials, and processed through special processes.

2024-08-16 - 设计经验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

507.090051004 KSD9700-090℃小型塑胶壳 250V5A 常闭温控器产品承认书

描述- 本资料为旭程电子（深圳）有限公司提供的KSD9700系列温控器的产品承认书，包含产品型号、规格、技术参数、测试数据和适用标准等内容。

型号- KSD9700 SERIES,KSD9700,KSD9700A,KSD9700 系列,507.090051004,KSD,KSD9700A系列,KSD系列

24.04.30 - 旭程 - 数据手册代理服务技术支持批量订货

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 - 选型指南代理服务技术支持批量订货