MBR140SFT3

MBR140SFT3 Application Field and Working Principle

The MBR140SFT3 is a rectifier diode specifically designed for switching mode power supplies (SMPS) applications. It is available in the industry standard SOD-123 package.

The main purpose of the MBR140SFT3 is to convert AC to DC by rectifying it. This process can be achieved either through discrete components or through the use of integrated circuits. The MBR140SFT3 is a single die rectifier and is specially designed for power supplies. It features low forward voltage drop, low leakage current and fast switching times.

The forward voltage drop of the diode is typically 0.9V at 20A and the reverse voltage is rated at 140V. The reverse recovery time is extremely fast, which makes the diode suitable for switching mode power supplies. The die is made of moulded plastic and is highly resistant to environmental stresses. The device has been designed to be rugged and reliable.

The working principle of the MBR140SFT3 is based on the PN junction effect. When a positive voltage is applied to the anode of the diode, electrons are pushed away by the electric field and the diode becomes forward biased. Under forward bias, the diode acts as a conductor, allowing current to flow through it and thus converting AC to DC. When the voltage across the diode is reversed, the diode acts as an insulator, blocking current from flowing and thus stopping the conversion process.

The MBR140SFT3 is commonly used in switching mode power supplies that require high efficiency. It can also be used in conventional rectifier circuits. The diode is designed for temperatures up to 150°C and is capable of carrying up to DC 20A with a maximum reverse voltage of 140V. Its fast switching times make it suitable for power supplies that require high performance.

In summary, the MBR140SFT3 is a single die rectifier that is specially designed for switching mode power supplies. It features a low forward voltage drop, low leakage current and fast switching times. It is capable of carrying up to DC 20A with a maximum reverse voltage of 140V and has been designed to be rugged and reliable.