SMD fuse is a miniature fuse, which is usually connected in series in the circuit, when the circuit malfunction reaches or exceeds the value of the melting current, to protect the electronic components of electrical appliances. Are there positive and negative SMD fuses?

When choosing a fuse, you need to know the fuse model specifications, this article will introduce the fuse model specification and selection method.

Fuse is burned out to deal with in a timely manner, first of all, we must find the reason why the fuse is burned out, and then deal with it:

. There are many reasons why a fuse may blow, either because of a short circuit fault, too much electricity, or because of the quality of the fuse itself. After the fuse is blown, the first thing to do is to investigate the cause of the malfunction, and then replace the treatment, you can look at the appearance, test with a digital multimeter, replacement method or shorting method to determine whether the fuse is damaged or not.

Fuses are used to protect electrical circuits, also known as fuses, in order to be able to blow in time in the event of a short-circuit fault. The resistance of a fuse is generally higher than the resistance of a wire so that it can protect the circuit.

Automobile fuses and ordinary fuses serve the same purpose, to protect the electrical circuits and electrical equipment. Automotive fuses are installed in the car, usually uniformly in the fuse box.

The tube body is usually made of ceramic or melamine tube, and different types of fuses are made of different materials.Quartz sand is a commonly used arc extinguishing material.

Fuse element, which is the core of the fuse. The fuse element is equivalent to a special wire connected in series in the circuit.

The manufacture of fuses requires the use of materials with good electrical conductivity and flame retardant properties, such as copper, silver, aluminum, tungsten and other metal materials, as well as ceramics, glass fiber and other non-metallic materials.

With the development of new energy, renewable energy and other emerging technologies, the fuse continues to put forward new requirements, fuse manufacturers need to continue to improve the level of materials and manufacturing processes to better meet the circuit safety and equipment protection, mainly reflected in the following aspects