LFUSCD15120A

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The LFUSCD15120A Rectifier is a single-phase, ultra-fast recovery, plateau-mode, soft-switching, power diode. It is suitable for AC/DC, rectifier bridge, switch mode, diode bridge and other power applications. This diode can be used to reduce the amount of power consumption and harmonic distortion while still providing the same amount of power output. Compared to standard rectifier diodes, the LFUSCD15120A has improved recovery time, allowing for high frequency applications. In addition, this diode has lower forward and reverse voltage drops resulting in higher efficiency.

The LFUSCD15120A provides significant improvements in efficiency and cost effectiveness compared to conventional hard switching rectifier technologies. The design allows for faster DC bus voltage recovery times resulting in a smoother transition from the on state to the off state. This improved recovery is the result of the dramatic drop in required reverse recovery charge. The reduced forward conduction and reverse recovery parameters allow for decreased power dissipation and thus, extended lifetime. The anode and cathode of this diode are both internally connected to either the source or load terminal resulting in a high dV/dt capability and allowing for reduced control overhead.

This diode offers maximum ratings of 400V and 30A with reverse voltage of 500V, reverse recovery time of 500ns, forward voltage of 2V, on-state resistance of 2.2mΩ, junction capacitance of 53pF, power dissipation at 75° Celsius of 4W, and thermal resistance of 0.082 °C/W. It also has an upper junction temperature rating of 150°C and a wide operating temperature range from -55°C to 150°C. Furthermore, the LFUSCD15120A diode is packaged and offered in a TO-220F-5L package.

The working principle of the LFUSCD15120A is largely similar to other rectifier diodes, where it passes a current in only one direction and blocks it in the opposite direction. During operation, the diode will reach a certain voltage drop across it, known as the “forward voltage.” This forward voltage, along with the diode\'s forward resistance and reverse resistance, determine its efficiency and effectiveness. When a voltage or current is applied in the opposite direction, the diode will not allow current to pass, referred to as being “in forward-blocking mode.” Once the voltage or current applied reaches a certain threshold, the diode will begin to pass current, known as the “breakdown voltage”, also referred to as the “breakdown region.”

When operating in the forward-blocking mode, the diode\'s reverse recovery time is one of the most important parameters for its performance. For the LFUSCD15120A, this parameter is especially beneficial due to its reduced forward conduction and reverse recovery parameters, thereby allowing for smoother transition and better electrical performance. Therefore, in power applications such as AC/DC, rectifier bridge, switch mode, and diode bridge, the LFUSCD15120A diode proves to be an extremely beneficial rectifier.

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