32NNL

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Foreign-shaped fuse is a kind of overcurrent protective device, which is specially used to prevent overcurrent and protect circuits. It is characterized by small size, convenient installation, high reliability, simple operation and long service life. Its application field ranges from low voltage power supply to line, instrument and household appliances, and as an important component in electronic information industry, the 32NNL fuse is widely used.

32NNL fuse, also known as non-replaceable fuse, is featured by its high reliability, strong breaking capacity, uniform shape, delicate appearance, formed by cold pressing technique. It is widely used in the field of electronic equipment, especially suitable for all kinds of high-end electronic product and small household appliance, such as digital cameras, digital cameras, laptop computers, etc.

The composition of 32NNL fuse is mainly composed of fuse core and body, of which the fuse core is the core part, which makes the current over-flow of the circuit, increases the resistance, the temperature of the core and the surrounding environment increases, so that the current through the copper welding layer melts, forming the air gap to disconnect the circuit, thereby achieving the purpose of reducing or cutting off the fault current. The body is made of high-conductivity copper strip, which is used to ensure the electrical connection and ensure the conduction of the current.

The working principle of 32NNL fuse is simple. When the current over-flow of the circuit reaches the set current value, the heater of the fuse core will be heated at the same time. When the temperature rises to the melting point of the copper welding layer (140℃), the copper welding layer of the fuse core will be melted quickly. At this moment, both ends of the fuse core will be disconnected. Then, the current that needs to be protected is disconnected, and the fault current is cut off immediately. Thus, the purpose of protecting the circuit is achieved.

In summary, 32NNL fuse, due to its unique working principle, continuous improvement of performance and comprehensive application fields, has been widely used in the new era, and is widely used in the fields of home appliances, instruments, heaters and so on. It is of great help to guarantee the safety of the current circuit, improve the stability of the equipment, and has become an indispensable and ideal protection device.

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