Classification of fuses_Industry Trends_News & Events_XC Electronics(Shenzhen)Corp.,LTD

中文

Online Message

29 2024-07

Share:

　　

　　Fuse is a key component used for circuit protection, mainly to cut off the current when the circuit is overloaded or short circuited, in order to protect the safety of electrical equipment. According to different applications and characteristics, fuses can be divided into the following three categories:

　　1. Plug in fuse: This type of fuse is usually used in cars and some household appliances. Its characteristics are easy installation and easy replacement. The plug-in fuse has a rated current value, and the selection needs to be matched according to the operating current of the circuit.

　　2. Spiral fuse: This type of fuse is commonly found in old-fashioned electrical equipment, characterized by the fuse being wrapped around a ceramic core and then wrapped in a layer of glass or plastic shell. The replacement of spiral fuses is relatively complex, but they have strong resistance to high voltage and high current.

　　3. Surface mount fuses: With the development of electronic technology, surface mount fuses are widely used in various electronic products due to their advantages such as small size and easy installation. Surface mount fuses usually use SMT technology, which can be directly soldered onto circuit boards, saving space and improving production efficiency.

Read recommendations:

40 amp auto fuse

heater for garage with thermostat

Lighting circuit of temperature controlled fuse.car ac fuse blown symptoms

PREVIOUS:Innovation and Safety of Low Temperature Fuses

Return

Next：Protect your car from the details

Related News

July 10,2023

Precautions for using fuses and fuses.charger fuse box diagram

　　　　Precautions for using fuses:　　1. The protective characteristics of the fuse should be adapted to the overload characteristics of the protected object. Considering the possible short-circuit current, a fuse with corresponding breaking capacity should be selected;　　2. The rated voltage of the fuse should adapt to the line voltage level, and the rated current of the fuse should be greater than or equal to the rated current of the melt;　　3. The rated current of each level of fuse melt in the circuit should be matched accordingly, and the rated current of the previous level of melt must be greater than the rated current of the next level of melt;　　4. The melt of the fuse should be matched according to the requirements, and it is not allowed to arbitrarily increase the melt or use other conductors to replace the melt.　　Inspection of fuses:　　1. Check whether the rated values of fuses and melts match the protected equipment;　　2. Check the appearance of the fuse for damage or deformation, a

July 18,2023

Automotive fuse box.15a pptc fuses

　　　　Car fuse box is a box used to install car fuses. According to the size of the installed fuse, it can be divided into: small car fuse boxes; Medium size car fuse box; Large car fuse box. General injection molding materials include: PBT engineering plastics, each with varying degrees of high temperature resistance. When selecting a car fuse box, consideration should be given to the current size of the car fuse used, the size requirements of the fuse, and the selection of different fuse boxes. The English translation of automotive fuse box is:　　Classification of automotive fuse boxes:　　According to the classification of installed fuses, they can be divided into fuse box and fuse box　　According to the size of fuses, they can be divided into large fuse boxes, medium fuse boxes, and small fuse boxes　　According to material classification, it can be divided into plastic fuse boxes and bakelite fuse boxes　　According to environmental protection, it can be divided into environmentally friendl

September 12,2023

Analysis of Two Reasons for Blowing of Self Recovery Fuses during Operation.fast blow fuse screwfix

　　　　Self recovery fuses are one of the preferred protective components for many electronic circuits. When a self recovery fuse is in operation, it is inevitable that the circuit will blow. For recoverable fuses that blow in daily use, we must understand the cause in order to solve the problem with the circuit board. Below, we will follow the editor to understand the two situations where self recovery fuses blow during operation:　　Scenario 1: The self recovery fuse is broken in the middle and intact on both sides, which is caused by excessive load current causing the fuse to blow or be damaged, and the melting point to decrease, but the current is not too high.　　Scenario 2: When the self recovery fuse melts, there are burn marks and black and white ash near the fastening screws. This is caused by an instantaneous short circuit of the power supply and a high short-circuit current.　　From the above two situations, it can be concluded that when a self recovery fuse blows during operation, i

November 06,2023

fast acting fuse is used for protection against.How does a fuse work?

　　　　We all know that when current flows through a conductor, it will generate heat due to the presence of a certain resistance in the conductor. And the calorific value follows this formula: Q=0.24I2RT; Where Q is the heat generated, 0.24 is a constant, I is the current flowing through the conductor, R is the resistance of the conductor, and T is the time for the current to flow through the conductor; Based on this formula, we can easily see the simple working principle of Shenzhen fuses. Once the material and shape of the fuse are determined, its resistance R is relatively determined (without considering its resistance temperature coefficient). When current flows through a fuse, it will generate heat, and as time increases, its heat also increases. The magnitude of current and resistance determines the speed at which a fuse generates heat, while the construction and installation of a fuse determine the speed at which heat is dissipated. If the speed at which heat is generated is less

October 26,2023

resettable surface mount fuse.Some precautions in the use of fuse tubes

　　　　1. The rated voltage of the selected fuse should be greater than the input voltage of the protected circuit.　　2. The rated current of UL specification fuses is determined under laboratory conditions and should be less than 75% of the nominal value during actual use.　　3. The rated current of IEC standard fuse tubes can be used at 90% or 100% of the nominal value in actual use.　　4. The working life of fuses varies under different operating temperatures. The higher the temperature, the shorter the working life of the fuse; When selecting fuses in practice, it is necessary to refer to the working environment temperature for selection　　5. The breaking capacity of a fuse tube is directly proportional to its volume and inversely proportional to the rated voltage.　　6. Under more than 100000 pulse impacts, the pulse I2T of the protection circuit should be less than 20% of the rated I2T of the fuse tube.