CDBF70

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Comprehensive surge current is one of the key indicators for the selection of diodes. Due to its small size and low price, the CDBF 70 series of diodes have become a popular choice for electronic equipment power supply surge current protection. This article will introduce the application field and working principle of the CDBF 70 series of diodes.

Application Field of CDBF 70

The CDBF 70 series of diodes is mainly used in the current limiting and over-voltage protection of electrical equipment, especially in power supply, tight voltage regulator and other electroplating equipment. It is applicable to single phase rectification, three-phase full wave rectification, three-phase bridge rectification, variable frequency drive and AC-DC conversion. Due to its large current capacity and low reverse leakage current, it is also suitable for the suppression of long time over-voltage caused by thunder, lightning and other power grid interference. It is suitable for the equipment which requires precise frequency control or high pulse switch.

Working Principle of CDBF 70

The CDBF 70 series of diodes are packaged in hermetic coaxial package with plastic case. When the power supply voltage is not exceeded, the diodes conduct current in one direction, passing the current to the load, meanwhile blocking the current from flowing back. The diodes can dissipate the pulse current of short duration to protect the circuit from short circuit current and over-voltage, and prevent the load from being damaged. When the applied voltage exceeds the rated voltage, the diodes can conduct current in reverse direction and act as a rectifier to protect the power supply so that it is not damaged and the load still works normally.

Conclusion

CDBF 70 series diodes are widely used in many applications such as current limiting and over-voltage protection, surge current suppression, precise frequency control and high pulse switch protection. Understanding their application field and working principle can greatly improve the efficiency and safety of using them.

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