SDT20120CT

The SDT20120CT is a popular diode designed for use in rectifier applications. The device\'s low forward and reverse voltage drop, low leakage current, and fast switching speed make it an ideal choice for designers looking for efficient, reliable rectifier solutions.Packing:The SDT20120CT comes in a variety of packages, including SOT-223 and SMB. The SOT-223 package offers high current handling and low thermal impedance, while the SMB package provides a small form factor, excellent power dissipation and transient response.Application Fields:The SDT20120CT is suitable for use in automotive, switching regulators, LCD TV, power supplies, notebook computers and other electronic application fields. It can be used in full-wave and bridge rectifier applications, providing fast switching speed and low reverse leakage current. The device is also suitable for use in surge protection applications, where it can protect sensitive circuits from transients due to sudden changes in load.Working Principle:The SDT20120CT contains two electrical diodes connected back-to-back. When a positive voltage is applied to the anode of the left-most diode, it conducts and current flows through the two diodes to the cathode of the right-most diode. When a negative voltage is applied to the cathode of the left-most diode, the diode does not conduct and the device is in a reverse biased state.In forward biased mode, the SDT20120CT will have a forward voltage drop of approximately 1V. The forward current of the device is limited by the junction temperature and should never exceed the maximum allowable current.In reverse biased mode, the SDT20120CT will have a reverse voltage drop of approximately 0.1V and a leakage current of about 10µA. The reverse current of the device is limited by the junction temperature, however, and should not exceed the maximum allowable current.The SDT20120CT is designed to operate within a temperature range of -55°C to 175°C. The device is also designed to withstand surge currents up to 10A with a maximum repetitive surge voltage of 1500V. This makes it suitable for use in high voltage surge protection applications.Conclusion:The SDT20120CT is a popular diode used in rectifier applications due to its low forward and reverse voltage drop, low leakage current and fast switching speed. It is available in a variety of packages and is suitable for use in automotive, switching regulators, LCD TV, power supplies, notebook computers and other electronic applications. The device is designed to withstand surge currents up to 10A with a maximum repetitive surge voltage of 1500V, making it suitable for use in high voltage surge protection applications.