BZS55B12 RXG

Diodes - Zener - Single - BZS55B12 RXG Application Field and Working Principle

Diodes usually refer to two terminal semiconductor devices that conduct electric current in only direction. As one type of diodes, the Zener diodes are used mainly in stabilizing and clamping circuits in many application fields. The BZS55B12 RXG is one kind of Zener diode product manufactured by ON Semiconductor, which is widely applied in many electronic circuit projects. In this article, we are going to discuss the application field of this Zener diode, its working principle and some features.

Application Field

The BZS55B12 RXG is a 12V Zener diode with a power rating up to 500mW. Such a Zener diode is perfectly suitable for the applications which require a widely adjustable output voltage. Such applications include voltage regulation for power supplies, overvoltage protection for process controllers and automatic protection for data bus lines.

Working Principle

The BZS55B12 RXG is a reverse breakdown voltage regulator that operates with a reverse bias voltage. When a high enough voltage is applied to the anode of the diode, it will break down, causing the initially blocked current to suddenly start to flow. At this moment, the diode won’t be blocked and works as a constant voltage regulator. This voltage is called the Zener voltage.

Features

The BZS55B12 RXG is an ultra small SOD-323 packaged zener diode with a maximum total capacitance of 80pF and a high power rating of 500mW. The junction-to-ambient thermal resistance is low, which means it can reject large amount of power and dissipa7e this heat effectively. With noise suppression and ESD resistance features, electrical circuits with large amount of data can be induced with a less amount of noise.

Conclusion

The BZS55B12 RXG, as a widely applied Zener diode, is suitable for many applications with its widely adjustable output voltage. Its reverse bias voltage and low thermal resistant junction make it even more reliable in performance, while its noise suppression and ESD resistance guarantee a stable work of data bus lines, making it an ideal choice for many electronic device project.