Operating parameters of automobile fuse holder_Industry Trends_News & Events

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10 2023-04

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　　　　The material of a fuse has a decisive impact on its performance. Based on the search results, we can obtain the following information:　　Fuses are generally made of silver copper alloy with high resistivity and low melting point. This alloy has good conductivity and melting characteristics, which can quickly melt when the current is too high, thus protecting the circuit. Early fuses were often made of lead antimony alloy, but due to safety reasons, this material has been phased out.　　When choosing fuse materials, factors to consider include melting point, resistivity, conductivity, mechanical strength, and corrosion resistance. Different application scenarios may require different types of fuses, so the requirements for materials may also vary.　　In summary, modern fuses are mainly made of silver copper alloy and no longer use lead antimony alloy. When selecting fuse materials, multiple factors should be considered comprehensively to ensure their reliability and safety in specific en

September 12,2023

Briefly describe the application field and protective effect of self recovery fuses in automobiles.slow blow vs fast blow fuse.fast acting fuse 30 amp

　　　　With the continuous development of China's economy, cars have become an essential means of transportation for people's travel. With the increasing number of urban cars, the application of the fuse industry in the automotive field is also becoming more and more widespread. Currently, 40% of cars use various electronic devices. So where do we need to provide over temperature/over voltage/over current protection, and what devices should be used for correct protection? This issue requires us to have a deeper understanding.　　The main applications of self restoring fuses in automotive circuit protection devices include: small and medium-sized car motors, wiring harness junction boxes, automotive circuits, and automotive consumer electronics. Automotive electronic protection includes battery charging circuits, cigarette lighter interfaces, PCB wiring, and IEEE1394 networks; In car consumer electronics include in car audio, DVD, TV, etc.　　Self recovery fuses are used in automobiles to prev

September 05,2023

Application Scheme of PTC Self Recovery Fuse in Network Television Converter.blower motor fuse keeps blowing

　　　　The network TV converter is a necessary equipment for watching network TV, which is increasingly favored by young people. However, due to the transmission of network signals through coaxial cables and long-distance communication, there are safety issues in applications such as installation wiring errors, short circuits, ESD damage, induced high voltage damage, lightning damage, etc. It is necessary to design overcurrent protection and overvoltage protection, To ensure the service life and reliability of network TV converter equipment.　　Among various protection circuits, the protection circuit with the least components, the lowest cost, and the highest reliability is the PTC self recovery fuse element and the circuit that PTC cooperates with varistors or TVS tubes.　　PTC self recovery fuse, also known as ten thousand fuse or self reset overcurrent protector, is also known as polymer polymer switch. In general, a PTC overcurrent protector can be combined with a varistor or TVS tube. C

August 26,2023

Introduction to ceramic gas discharge tubes

　　　　Ceramic gas discharge tubes are the most widely used switching devices in lightning protection equipment. Whether it is for lightning protection of AC and DC power supplies or various signal circuits, they can be used to discharge lightning currents into the ground. Its main characteristics are: high discharge current, small interpole capacitance (≤ 3pF), high insulation resistance (≥ 109 Ω), high dispersion of breakdown voltage (± 20%), and slow reaction speed (the fastest is 0.1-0.2 μ s) . According to the number of electrodes, there are two types of discharge tubes: bipolar discharge tubes and bipolar discharge tubes (equivalent to two bipolar discharge tubes connected in series). Its shape is cylindrical, with two structural forms: with and without leads (some also have protective cards for short circuits in case of overheating).　　A gas discharge tube consists of two electrodes enclosed at a certain distance in a ceramic tube filled with inert gas. Its electrical performance ba

July 21,2023

Calculation method for high-voltage fuses.tv fuse replacement

　　　　For high current protection zones, the selected fuse should have the following performance: ① large capacity, usually in the tens to hundreds of A; ② Capable of withstanding instantaneous high currents and pulses; ③ High safety and reliability; ④ The operating environment temperature is relatively high; ⑤ Good mechanical characteristics.　　1. Selection of fuse type　　Select the appropriate type based on the working environment, size limitations, current characteristics, voltage characteristics, connection method, etc. of the fuse. Usually, high-voltage fuses for electric vehicles use American standard FWH, FWP, and other series.　　2. Determination of fuse parameters　　The rated current value of fuses is usually based on the value at an ambient temperature of 23 ± 5 ℃. In order to meet the actual operating requirements of electric vehicles, it is necessary to modify the rated current value.　　By using the above formula, a preliminary rated current of the fuse can be obtained. However, in

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Operating parameters of automobile fuse holder

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2023-04