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July 07,2023

Structural characteristics of fuses.difference between time delay and fast acting fuse

　　　　The fuse is mainly composed of three parts: the melt, the shell, and the support, among which the melt is a key component that controls the fusing characteristics. The material, size, and shape of the melt determine the fusing characteristics. Melt materials are divided into two categories: low melting point and high melting point. Low melting point materials such as lead and lead alloys have a low melting point and are prone to melting. Due to their high electrical resistivity, the cross-sectional size of the melt produced is larger, and the metal vapor generated during melting is more. They are only suitable for fuses with low breaking capacity. High melting point materials such as copper and silver have a high melting point and are not easy to fuse. However, due to their low electrical resistivity, they can be made into smaller cross-sectional sizes than low melting point melts. They produce less metal vapor during melting and are suitable for fuses with high breaking capacity.

August 26,2023

Specification and size of patch fuse.tube amp blowing main fuse

　　　　Chip fuses are the most commonly used fuses. As a fuse manufacturer, we also have our own brand of chip fuses. So, what are the specifications and sizes of our company's chip fuses?　　What are the specifications and dimensions of patch fuses—— Chip fuses mainly come in packages such as 0603, 0805, 1206, 1210, 1812, 2016/2018, 2920, etc. They are all named and classified according to volume, and each series has many other specifications and models based on different currents and voltages.　　Surface Mount Fuses　　What are the specifications and dimensions of patch fuses—— Among them, the size of the 0603 series patch fuse is 1.6 * 0.8mm; The size of the 0805 series patch fuse is 2.0 * 1.2mm; The size of the 1206 series patch fuse is 3.2 * 1.6mm; The size of the 1210 series patch fuse is 3.2 * 2.5mm; The size of the 1812 series patch fuse is 4.5 * 3.2mm; The size of the 2016/2018 series patch fuse is 5.0 * 5.0mm; The size of the 2920 series patch fuse is 7.5 * 5.5mm.

August 08,2023

Fuse selection.mini fuse voltage drop chart

　　　　Choose Fuse Type　　Choose Standard [UL, IEC...]　　Choose Voltage Rating [AC or DC]　　Calculate Rated Current　　Choose Interrupting Rating [Breaking Capacity]　　Current Derating　　Advisor In rush Characteristic ² T]　　Consultant Pulse Factor [Fp]　　1、 Choose Fuse Type　　The first step in selecting a fuse is to determine the type and size required. Common structures and sizes include the following:　　1. Tubular type: glass or ceramic tube body, with a general size of 3.6x10mm 5x15mm 5x20 6.3x32mm;　　2. Plastic shell type: PA66 shell, small in size, woven with machine insertion, generally 8.5x8mm 8.5x7.6mm in size;　　3. Epoxy resin type: ceramic tube body, surface sealing resin, micro type, woven machine insert, size: 3x7mm;　　4. Surface mount: suitable for high-density circuit boards, with dimensions of 0402 0603 1206 6125 1032;　　5. Automotive fuses: generally used in conjunction with terminals or boxes, specifically for use in automotive or low-voltage, high current systems;　　2、 Choose Standard　

November 03,2023

tube amp blown fuse symptoms.What can a fuse do?

　　　　1. Under normal circumstances, fuses play a connecting role in the circuit.　　2. Under abnormal (overload) conditions, the fuse serves as a safety protection component in the circuit, which can safely cut off and protect the circuit through its own fusing.　　2、 The working principle of a fuse:　　When a fuse is energized, the heat converted from electrical energy causes the temperature of the melt to rise. When normal working current or allowable overload current passes through, the heat generated is radiated to the surrounding environment through the melt or shell, and the heat dissipated 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 rol

August 04,2023

Self inspection method for waterproof fuse holder.ptc resettable fuse tutorial

　　　　After a period of application, waterproof fuse holders are likely to encounter some difficulties. Therefore, in the case of application, it is necessary to frequently inspect them, and its appearance should be inspected first. Based on years of experience, Linda will provide the following:　　(1) Look at its appearance, feet, and surface areas. There are signs of rusting, deformation, or broken feet on the wood.　　(2) Check the surface of the waterproof fuse holder for any contamination or scratches.　　(3) To see if there are any deformation or cracks, and to ensure excellent practical application results throughout the entire application process, it is necessary to ensure that the appearance meets the requirements.　　It is not difficult to see from this that circuit safety is crucial, especially in hot summer when natural phenomena are still highly prevalent. Against this objective background, it is important to ensure the professionalism of circuit maintenance, especially in troublesh

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Fuseless car charger, carefully burn your phone

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2023-04