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August 12,2023

How to prevent current fuse holder failure?mini blade fuse kit

　　　　1. Carefully select the correct current fuse　　The application, operating parameters, and environment of fuses can all affect their lifespan, so choosing the correct fuse is very important.　　2. Ensure the rationality of circuit design　　Faults in circuit design can also lead to fuse failure, which can be catastrophic. Only by ensuring that the equipment operates within a larger rated range can faults be avoided.　　3. Reasonable use of fuses　　Correct use can avoid faults caused by errors, and it is also important to control the ambient temperature of the fuse used, which helps to reduce the possibility of current fuse holder failure. If you are unfamiliar with the use of fuses, you can directly consult the fuse manufacturer.

October 17,2023

high voltage fuse blown microwave.How to understand the holding current and triggering current of fuses

　　　　A netizen left a message asking: How do you understand the difference between maintaining current and triggering current of a fuse?　　Fuses all have a holding current and a triggering current. Below, the editor will analyze the difference between the holding current and triggering current of fuses.　　The holding current (IH) is the highest current that can pass through the circuit without triggering a resistor in still air (ranging from 20 ℃ to 25 ℃ depending on the temperature of the product), which is the highest operating current at room temperature.　　The triggering current (It) is the minimum current at which the Lite fuse operates in still air (which can range from 20 ℃ to 25 ℃ depending on the temperature of the product), i.e. the minimum fault current at room temperature.　　For most fuse products, the ratio of It to IH is 2:1, which may be as low as 1.7:1 for some products and as high as 3:1 for others. The difference in materials and production methods, as well as the change i

July 29,2024

Classification of fuses

　　　　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, s

August 19,2023

What is the function of the resistance of a fuse?ceramic fuse blown

　　　　1、 What is fuse resistance?　　Resistors and fuses are similar in material and construction, while fuse type resistors serve both functions and can be used as resistors to protect machine equipment in case of abnormal current. Due to its dual function, the cost is reduced accordingly. Fuse resistors can be divided into: metal film fuse resistors, fuse type wound resistors, and fuse type cement resistors. There are several types of power: 1/4W, 1/2W, 1W, and 2W. As the power increases, the appearance size of the product will continue to increase.　　1.25A fuse resistance　　2、 The function of fuse resistance　　Resistors and fuses are similar in material and construction, while fuse type resistors serve both functions and can be used as resistors to protect machine equipment in case of abnormal current. Usually, the resistance of a fuse is significantly higher than that of an equally long wire, so that it can protect the circuit. If the current or voltage exceeds the rated value, the fuse w

July 19,2023

Glass sealed fuse.auto fuse block

　　　　The rated current values usually include 100mA, 200mA, 315mA, 400mA, 500mA, 630mA, 800mA, 1A, 1.6A, 2A, 2.5A, 3.15A, 4A, 5A, 6.3A, etc. Generally, the rated current values of various fuses are provided based on customer needs and actual purposes.　　The nominal working voltage of a fuse, codenamed Un, is generally rated at 32V, 60V, 125V, 250V, 300V, 500V, and 600V. Fuses can be used at a voltage not exceeding their rated voltage, but are generally not approved for use in circuits with a circuit voltage greater than the rated voltage of the fuse.　　When the rated current is applied to the fuse, the voltage measured at both ends of the fuse when the fuse reaches Thermal equilibrium, that is, when the temperature is stabilized, is Ud. Due to the voltage drop at both ends of the fuse having a certain impact on the circuit, there are clear provisions for voltage drop in European regulations.　　Usually divided into cold resistance and hot resistance, cold resistance is the resistance value

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Fuseless car charger, carefully burn your phone

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2023-04