Diodes – Rectifiers – Single

STTH3R06S is a high power, low voltage Schottky rectifier which was developed for use in both low and high frequency DC-DC converters and bridge applications. It has a forward current rating of 30A and a maximum repetitive reverse voltage of 600V, making it a suitable choice for high power applications where high level efficiency and excellent dynamic response are important. In this article, we will explore the application field and working principle of the STTH3R06S Schottky rectifier.

Application Field

The STTH3R06S Schottky rectifier is suitable for a variety of applications, including:

• High-frequency DC-DC converters
• Battery charge and discharge control
• DC motor speed control
• Power factor correction (PFC)
• E-bike / electric motorcycle controllers
• Solar inverters
• Wind turbine inverters
• AC-DC rectifier circuits

The ability of the STTH3R06S Schottky rectifier to operate at higher junction temperatures (up to 175℃) makes it suitable for these high power applications, as it has increased resistance to thermal stress.

Working Principle

The STTH3R06S Schottky rectifier works on the principle of Schottky diode action. Schottky diodes are a type of semiconductor diode which have a low forward voltage drop and fast switching speed, as compared to conventional p-n junction diodes. When a positive voltage is applied to the anode of a Schottky diode and a negative voltage is applied to the cathode, the diode will conduct current and act as a low voltage drop rectifier. In the case of the STTH3R06S Schottky rectifier, the maximum forward voltage drop is only 0.5V, which makes it an ideal choice for many applications where lower losses are important.

The fast switching speed of Schottky diodes also makes them a suitable choice for high frequency DC-DC converters, as they allow fast transitions between voltage states in the converter. The ability of Schottky diodes to operate at higher junction temperatures also makes them a suitable choice for these applications.

The STTH3R06S Schottky rectifier is available in two different package configurations – D2PAK and DPAK, providing designers with the flexibility to choose the best package for their application.

Conclusion

The STTH3R06S Schottky rectifier is a high power, low voltage Schottky rectifier which is suitable for many application fields. It has a high current rating, a low forward voltage drop and the ability to operate at high junction temperatures, making it an ideal choice for high power applications. The fast switching speed of Schottky diodes also makes them a suitable choice for high frequency DC-DC converters, as they allow fast transitions between voltage states in the converter.