DFJ-70

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DFJ-70 is a type of electrical specialty fuse. It is designed to serve as a supplementary protective device in electrical, electronic and communication equipment. The fuse consists of a cylindrical body, a silver-based contact, two nickel-plated copper conductors and a transparent insulating sleeve.

The DFJ-70 fuse is mainly used in the field of circuit over-current protection for communication, audio, video, instruments, power systems, and other digital products. It has a wide range of application temperatures ranging from -20 to +90 degrees Celsius, and a wide range of current ratings from 1A to 50A. It complies with international quality standards and is reliable and safe in high temperature and overload circumstances.

The working principle of the DFJ-70 fuse is based on the property of the fuse wire material, and the principle of air hardening. Generally, when the current passing through the fuse exceeds the rated current, the temperature of the fuse wire material rises exponentially, causing the fuse wire material to soften and vaporize. This increases the air gap between the two electrodes, interrupting the flow of current, removing the circuit overload, and providing protection to the connected system.

The DFJ-70 fuse is designed to provide protection to the circuit through its internal fusing mechanism. It has a fast response rate that acts as a trip time maximum fuse installation time. The ultra-fast reaction time minimizes the risk of circuit damage due to overload. The fuse has been tested and meets the requirements of GB/T 1839-2008 standard. It is ideal for use in applications that require an electrical and specialty fuse.

The DFJ-70 fuse is made from high-quality electrical components, making it suitable for use in a range of applications. It can be used in conjunction with other circuit protection devices such as circuit breakers and relay systems. It is also designed with a transparent insulating sleeve to prevent accidental contact with the terminals and for easy identification.

In summary, the DFJ-70 fuse is a reliable and safe electrical specialty fuse. Its fast reaction time ensures timely protection to the circuits from overloads. It meets all the international quality standards and is suitable for a variety of applications in the electrical and electronic industry.

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