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TVS - Diodes

The SA54C-E3/73 TVS diode is a silicon-based device built to protect electronic systems that may be exposed to sudden, high-capacity transient voltage. This voltage can often come in the form of an ESD (electrostatic discharge) traveling through a signal line, and could be destructive to a system if not stopped by this diode.

Application Field

The SA54C-E3/73 is suitable for protecting components from electrical surges. It can be used as a switch in antennas that are sensitive to lightning, as a turner protection device in I/O ports, as a device to effectively absorb high-resolution electrical transients, and for ground fault protection. The TVS can also be used in optical drives, boards in telecommunication equipment, and other digital equipment.

Working Principle

When sufficient voltage is applied to a TVS diode it quickly becomes an open circuit. This stops the current flow, protecting the electronic system from harm. TVS diodes also have a peak pulse power rating that indicates the amount of current it is capable of drawing for a specific amount of time. It should be noted that the maximum allowed peak pulse power must not be exceeded or the diode may be damaged.

The SA54C-E3/73 offers very good attenuation properties for transient protection and a repetitive peak pulse power rating of 2000 W. It has a maximum clamping voltage of 58.9 V, a typical junction capacitance of 0.06pF, and a typical breakdown voltage of 58.5V.

Conclusion

The SA54C-E3/73 TVS diode is a reliable and effective device to protect sensitive electronic components from electrical surges such as those that can be caused by electrostatic discharge or high-resolution voltage transients. It offers good attenuation properties as well as a reliable maximum clamping voltage and pulse power rating, making it suitable for a number of different electronics applications.

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