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July 27,2023

Application of self recovery fuse in overcurrent protection of Industrial internet of things equipment

　　　　USB ports are increasingly included in Industrial internet of things (IIoT) devices. The data speeds of USB 3.0, 3.1 and 3.2 vary from 5GB/s to 20GB/s. USB protocol can provide bandwidth and reliability required by almost all industrial applications. The USB port provides a connection between the host and IIoT devices for real-time monitoring and control, enabling users to make smarter decisions and improve productivity across multiple processes. Overcurrent and overvoltage in IIoT devices may be caused by power overload, surge, or short circuit, which can generate a large amount of heat and increase the risk of physical damage or electrical fire.　　self recovery fuses can disconnect the circuit during a fault event like disposable fuses, but they are recoverable, allowing them to achieve longer lifespan of the product. Each fuse is composed of a positive temperature coefficient material, and its internal resistance increases exponentially with increasing operating temperature. The

October 07,2023

How many types of fuses are there.plastic fuse board under stairs

　　　　There are many types of fuses, including classification by protection form, scope of use, volume, rated voltage, breaking capacity, and fusing speed.　　Below is an introduction to the classification by type, which can be divided into: current fuses: patch fuses, miniature fuses, plug-in fuses, and tubular fuses; Temperature fuse: RH square type, RP resistance type, RY metal case; Self recovery fuse: plug-in, laminated, patch.　　1、 Current fuse　　Chip fuse. There are specifications such as 0805 and 1206, which use thin film technology to accurately control electrical characteristics. Due to its small size, it is an ideal choice for providing secondary protection for circuits in space limited applications, such as handheld portable electronic devices and various instruments and meters.　　Insert a fuse. Commonly seen in automotive applications, sometimes also known as fork bolt fuses　　Tubular fuse. This is very common, especially in various power supply applications such as switching powe

August 03,2023

Introduction to the Classification of High Voltage Fuses.lighting fuse size

　　　　The heat emitted by high-voltage fuses through convection, conduction, and other means gradually reaches a balance with the heat generated. If the generated heat is greater than the dissipated heat, the excess heat gradually accumulates on the melt, causing the temperature of the melt to rise; When the temperature reaches or exceeds the melting point of the melt, it will cause the melt to melt, fuse, and cut off the current, playing a role in safety protection of the circuit.　　Classification of high-voltage fuses:　　1. Divided into: φ 2 φ 3 φ 4 φ 5 φ 6 and others.　　2. According to the fuse characteristics, it is divided into fast fuse type, medium delay fuse type, and delay fuse type. (It can also be divided into express and strong delay).　　3. According to the breaking capacity, it can be divided into low breaking type, high breaking type (and can also be divided into enhanced breaking type).　　4. According to safety standards (or usage regions), it can be divided into UL/cUL (North

July 20,2023

Classification of fuses and fuses.fast acting fuse meaning

　　　　Spiral fuse: There is a fuse indicator on the upper cover of the melt. Once the melt melts, the indicator immediately pops up and can be observed through the glass hole on the ceramic cap. It is commonly used in machine tool electrical control equipment. Spiral type fuse. The breaking current is large and can be used for short circuit protection in circuits with voltage levels of 500V and below, and current levels of 200A and below.　　Enclosed fuses: Enclosed fuses are divided into two types: filled fuses and unfilled fuses, as shown in Figures 3 and 4. Fuses with fillers are generally made of square porcelain tubes filled with quartz sand and melt, with strong breaking capacity. They are used in circuits with voltage levels below 500V and current levels below 1KA. The unfilled sealed fuse packs the melt into a sealed cylinder, with a slightly smaller breaking capacity, and is used in power grids or distribution equipment below 500V and 600A.　　Quick fuse: Quick fuse is mainly used f

September 11,2023

Application Explanation of Self Recovery Chip Fuses in Microcontrollers.7.5 amp mini blade fuse

　　　　PTC self recovery patch fuse is used for overcurrent protection between motherboard power supplies and backend equipment overcurrent protection. Regarding the issue of PTC self recovery patch fuse for short circuit and overcurrent protection outside the microcontroller. The output port of the microcontroller has direct external wiring. If there is a wiring error, it is easy to burn out the IC. In addition, if there is a load overload, it can also burn out the IC. Therefore, the output port of the I/O port is usually connected in series with a self recovery patch fuse for overcurrent protection.　　In microcontroller circuit protection, disposable fuses or fuse resistors are also used for protection. Glass tube fuses and fuse resistors are traditional protection applications, with the advantage of low cost.　　However, this application has gradually been phased out, and PTC self recovery patch fuses have been used instead. Due to the fact that disposable fuses only fuse for overcurrent

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Fuseless car charger, carefully burn your phone

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2023-04