A FR20G02 is an ultra-fast, soft-recovery rectifier diode package with a very low maximum total reverse recovery charge. This type of rectifier provides high power ratings rating up to 8A, 20V, and temperatures ranging from -55°C to 125°C. It is widely applicable in areas such as conventional rectification, freewheeling, or snubber applications.

Application Field

The FR20G02 package is suitable for a wide variety of applications, such as high energy efficiency power factor correction systems, general purpose rectification, active power factor correction ballasts, and LED lighting power systems. It can also be used for anti-interference, in switched mode power supplies (SMPS), and even in the medical field due to its fast recovery speed and low forward voltage.

Working Principle

The FR20G02 works on a principle of rectification. It typically consists of two p-n junction diodes connected in such a way that current is allowed to flow through one diode, while being blocked by the other. This process is known as rectification, and allows the package to act as a bridge in circuits, as well as to regulate AC currents.

The way the rectifier operates is relatively simple. When a positive voltage is applied to the diode, it begins to conduct current by allowing free electrons to travel across the p-n junction. This leads to the formation of an electric field, and the consequent flow of electrons and removal of electrons, thus creating a DC current.

When a negative voltage is applied to the diode, the opposite happens and the diode stops conducting current as the electrons have nowhere to travel. This is known as reverse current.

The FR20G02 is designed to provide ultra-fast, soft-recovery operating speeds with low reverse recovery charges, which is why it is often used for energy efficient applications such as power factor correction systems. This makes the FR20G02 much more efficient than many other types of rectifier packages.

Conclusion

The FR20G02 rectifier is a supremely efficient and versatile rectification package. It is extremely efficient, with fast recovery speeds and low reverse recovery charges, making it perfect for many diode applications. The package can be used for high efficiency power factor correction systems, switched mode power supplies, LED lighting and much more.