power fuse supply
中文
Online Message
Online Message
News & Events News & Events

News & Events

Keep abreast of company dynamics

air conditioner fuse box replacement..Application scope of patch self recovery insurance

11

2023-11

Share:

　　d83bbc296c1f220

　　Self recovery fuses can be divided into patch based self recovery fuses and plug-in self recovery fuses. With the increasing miniaturization of product requirements, the range of use of patch based fuses has increased.

　　The main encapsulation of SMD self recovery fuses are: 0805, 0603, 1206, 1812, 2920, and their working principle is:home energy storage system battery

　　The self recovery fuse is composed of specially treated polymer resin and conductive particles (Carbon Black) distributed inside. Under normal operation, the polymer resin tightly binds conductive particles outside the crystalline structure, forming a chain like conductive electrical pathway. At this time, the recoverable fuse is in a low resistance state (a), and the heat generated by the current flowing through the self recovering fuse on the circuit is small and does not change the crystal structure. When a circuit experiences a short circuit or overload, the heat generated by the large current flowing through the self recovery fuse causes the polymer resin to melt, rapidly increase in volume, and form a high resistance state (b). The working current rapidly decreases, thereby limiting and protecting the circuit. After the fault is eliminated, PTC can restore the fuse to cool and crystallize again, shrink the volume, and the conductive particles form a conductive path again. The self restoring fuse returns to a low resistance state, thus completing the protection of the circuit without the need for manual replacement.

　　Application scope

　　Communication equipment: program-controlled switches, user terminal equipment, main wiring security units, etc.

　　Automotive electronics: automotive wiring harnesses, automotive anti-theft devices, automotive micro motors, automotive electronic products, etc.

　　Electronics industry: power ballasts, micro motors, fire alarms, instruments and meters, etc.

　　Electrical equipment: satellite receivers, security equipment, speakers, industrial automatic control, etc.

Read recommendations:

24F

auto reset blade fuse

JK-SMD 1812 Series

Automotive fuse box.15a pptc fuses

Structure of fuse and fuse.tv blown fuse symptoms

PREVIOUS:mini cooper fuse box symbols meaning.Application of PPTC chip fuse in single lithium battery

Return

Next：air conditioner fuse block pull-out.What are the differences in performance and applications between slow blown fuses and fast blown fuses?

Related News

October 28,2023

youtube fuseschool.Does the fuse have a resistance value?

　　　　Fuses have resistance values, but in fact, even wires have resistance. However, the resistance of the wires is very small (the nature of the conductor), which is usually ignored in general circuit calculations. However, the resistance of a fuse is significantly higher than that of an equally long wire, so that it can protect the circuit.　　The fuse is marked with "5A 250V", indicating that the maximum current allowed for Shenzhen fuses is 5A, which is called the rated current; The maximum voltage allowed to pass through is 250V, which is called the rated voltage. If the current or voltage exceeds the rated value, the fuse will blow, causing the circuit to open, thus protecting the consumer (without a fuse, the consumer may be burned out).　　The principle of fuse blowing is Joule's law. Joule's law: The heat generated by an electric current passing through a conductor is proportional to the square of the current, to the resistance of the conductor, and to the time it is energized. Jou

September 09,2023

Incorrect Application of Current Chip Fuses.motorsport fuse and relay box

　　　　Usually, the occurrence of circuit board fire accidents is related to the failure of the varistor to disconnect from the circuit in a timely manner, resulting in varying degrees of short circuits in the system power supply. Below, I will share with you the drawbacks of using a single patch fuse current protection method to deal with the failure of the varistor, and propose that the best protection method for the failure of the varistor is over temperature protection.　　Zinc oxide varistor MOV is a polycrystalline semiconductor ceramic component made by a typical electronic ceramic process with zinc oxide as the main body and various metal oxides added. MOVs have a unique grain boundary structure. Under a certain electric field, the conduction of grain boundaries changes from hot electron emission conduction to electron tunneling conduction, and their resistance value sharply decreases with the increase of voltage. They have excellent nonlinear volt-ampere characteristics. Therefore,

September 08,2023

Which is better, disposable fuse or self restoring fuse.surface mount fuse letter code

　　　　From a structural perspective, a self restoring fuse is composed of a polymer polymer, essentially a positive temperature coefficient thermistor. It provides circuit protection through the positive correlation between the resistance value of PTC material and temperature, as well as the sudden change at the Curie temperature point. It can be reused without frequent replacement; Disposable fuses are made of ordinary fuse materials, so they cannot be used again after each action and require frequent replacement.　　From the perspective of working action, they can all be used for overcurrent protection of circuit currents and can be interchanged in many occasions. For example, in battery protection applications where overcurrent protection requirements are not too high, these two types of products can both lead the way and can even be replaced, and most of the time, each has its own field.　　In the protection application of certain important devices such as ICs, or in the input/output ter

January 12,2024

resettable fuse hold current.Classification of fuses

　　　　According to different usage scenarios and characteristics, fuses can be divided into the following types:　　1. Glass tube fuse　　Glass tube fuse is the most common type of fuse, usually composed of a glass tube and two end joints, with a metal wire inside. When the current exceeds the rated value, the metal wire will melt and cut off the circuit. This type of fuse is usually suitable for low voltage, low current circuits.　　2. Hot melt fuse　　Hot melt fuse is also a commonly used fuse, which is made of fusing alloy inside. When the current exceeds the rated value, the fusing alloy will melt and break, cutting off the circuit. This type of fuse is usually suitable for high current, high temperature circuits.　　3. High voltage fuse　　High voltage fuse is a type of fuse specifically used in high voltage circuits, with a fuse made of conductors inside. When the current exceeds the rated value, the fuse will melt and cut off the circuit.

August 14,2023

Small volume 0603 series minimum current patch recoverable fuse.resettable fuse 12v

　　　　The minimum current of the brand 0603 series is 0.02A, and the maximum current can reach 1A. All detailed models of the entire series include ASMD0603-002, ASMD0603-003, ASMD0603-004, ASMD0603-005, ASMD0603-010, ASMD0603-020, ASMD0603-025, ASMD0603-035, ASMD0603-050, ASMD0603-075, and ASMD0603-100. Today we will learn about the minimum current of this series.　　The minimum current patch recoverable fuse of the 0603 series corresponds to the model ASMD0603-002, with a silk screen of Y, a rated current of 0.02A, a triggering current of 0.06A, a maximum current of 20A, a maximum voltage of 60V, and a power output of 0.5W during operation. When the current passing through the fuse is 0.2A, the fuse will operate within 1 second. At this moment, the minimum internal resistance of the material number is 12 Ω, and the maximum internal resistance after one hour of welding on the machine is 70 Ω. The normal operating temperature range is -40 ℃~+85 ℃. Welding placement supports two types: refl

+86 755 89762685

MB:+86 13924633629 Ms.vicky

E-mail: waimao@xcfuse.com


Factory :

XC Electronics(Shenzhen)Corp.,LTD

Add: Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China


Shenzhen branch: Shenzhen Xucheng Electronic Commerce co.Ltd

Add: 8-15 Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China

About Us Products Resource Solutions Certifications News & Events Contact Us

© Copyright. xc 2023. All rights reserved.粤ICP备11049369号