PRTR5V0U2K,132

TVS - Diodes

A Transient Voltage Suppressor Diode (TVS Diode) is an electronic component used to protect other components from transient voltage spikes. It is a solid-state device that can limit the voltage that is applied to an electrical circuit. It is used in applications such as automotive and computer designs, RF amplifiers, ultra-precise analog equipment, and other sensitive electronics. TVS diodes are available in a wide variety of sizes and characteristics to meet specific application requirements.

Applications

The primary application for TVS diodes is protection from transient voltage spikes on dc or ac power lines. TVS diodes can limit the voltage applied to the load, which can protect sensitive electronic components from over-voltage and extreme temperatures. TVS diodes can be used in applications where higher breakdown voltages are needed, such as on-board transistors in automotive designs or RF amplifiers. They can also be used to reduce noise in sensitive analog circuits such as those found in precision medical equipment. TVS diodes can also be used to protect against electrostatic discharge (ESD) and lightning strikes.

Working Principle

The TVS diode is a semiconductor device which is used to protect other components from transient voltage spikes. It works by clamping the voltage that is applied to the load. This is achieved by the diode allowing current to flow during normal operation and then movement of holes and electrons to its p-and n-type regions when a voltage spike occurs.

When a voltage spike occurs, the holes and electrons are attracted to each other and combine at the junction of the p-type and n-type material. This recombination forms an electric field that opposes the influx of additional current. The electric field acts as a barrier, decreasing the current that can flow and limiting the voltage rise.

Conclusion

TVS diodes are a widely used component in electronic designs. They provide protection from spikes and transients in dc and ac power lines. They can limit the voltage applied to the load and protect sensitive components from over-voltage and extreme temperatures. They can also be used to reduce noise in sensitive analog circuits and to protect against electrostatic discharge and lightning strikes.