STTH802B

STTH802B is a kind of single rectifier diode which is mainly used for high voltage, high frequency rectification. It has an excellent electrical performance and is widely used in industrial applications. This article is dedicated to discuss its application fields and working principles.

Application Fields

STTH802B diode is mainly used in high voltage, high frequency rectification. This kind of diode has a wider applications range compared to the ordinary diodes, such as Schottky, fast recovery and ultra-fast recovery diodes. STTH802B has a wide operating temperature range from -40°C to +160°C, making it a suitable component for harsh environment applications and occasions with temperature extremities. It is also considered a robust component for applications which involve extreme environmental conditions like humidity, dust, pressure and so on.

Furthermore, STTH802B diode can be used for different rectification tasks related with real time clock (RTC), motor control, switching power supplies and UPS. For instance, it is broadly recognized as a powerful component in many types of SMPS topologies, including flyback, push-pull, forward and half-bridge, providing a stable diode operation. In terms of maximum value tolerance and long-term reliability, STTH802B is a very attractive component for signal conversion applications, such as AC/DC, DC/DC and signal level translation.

Working Principle

STTH802B is a rectifier diode which uses p-n junction as a light-blocking layer to control the flow of electricity in a single direction, from anode to cathode. In its most basic form, the process of rectification consists of two steps. In the first step, the diode is activated by the applied voltage and current flows through the diode in one direction; in the second step, the diode is reversed biased, no current flows through the diode and the voltage is blocked.

Under normal conditions, STTH802B diode has a low resistance when forward biased and a high resistance when reverse biased, allowing very low power dissipation which ensures the component’s high efficiency rate. As a consequence, STTH802B can provide high rectifier frequency and fast-switching, making it a suitable component for high voltage and high frequency rectification applications.

Conclusion

To sum up, STTH802B rectifier diode is a component dedicated to high voltage and high frequency rectification, which has a wide applications field. It has a high efficiency rate, and robust components available for harsh environment applications. STTH802B is mainly used in switching power supplies, RTC, motor control and UPS, providing a stable diode operation and a very attractive component for signal conversion applications. The working principle of STTH802B rectifier diode is that when forwardly biased low resistance is present and when backwardly biased a high resistance is present, allowing minimal power dissipation.