MUR240G

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MUR240G is one of the diodes in the range of rectifiers for single applications. It has been designed for use in conditions of high operating temperatures, which is why it has temperature ratings of 133 to 175 degree Celsius. The device is useful in switching and general power supply applications where high peak-inverse-voltage (PIV) protection is required. The peak in surge current rating also makes it an ideal device for implementing voltage regulation with low power transistors.

The MUR240G is configured as an ‘ideal diode’ meaning that it provides a low forward voltage drop while exhibiting high frequency performance, low on-state losses and high reverse breakdown voltages. It is built on the conventional ‘shottky’ or metal–semiconductor junction. This junction allows the device to keep a much lower voltage drop across its terminals due to the lower forward voltage characteristics. This also makes the device very efficient; it has a forward conductance of up to 25A, and has a reverse transient recovery time of less than 6ns.

When the MUR240G is operated in the forward conduction mode, the voltage at the anode must be greater than the voltage at the cathode in order for it to conduct current. When operated in the reverse mode, there must be an electric field between the anode and cathode for the device to conduct. In this mode, the device will develop a very high reverse breakdown voltage due to the increased electric field across the junction. Thus, the device can be used effectively as a series rectifier, effectively isolating the power source from the load and suppressing voltage transients.

The MUR240G device is also capable of functioning in an AC environment, as it is capable of delivering 300V ripple-free DC power. This is due to its ability to increase its reverse breakdown voltage with the increasing input AC frequency. This also enables the device to act as a transient voltage suppressor, effectively suppressing sudden surges in line voltage and prolonging the life of associated components. Another useful feature of the device is that it can be used with light loads without any losses, making it a suitable choice for temperature and humidity control circuits.

In summary, the MUR240G single rectifier is a useful device for all kinds of switching and power supply applications that require a low forward voltage drop and a high peak-inverse-voltage capability. It can also be utilized in AC environments, and its capability to increase its reverse breakdown voltage with increased AC frequency makes it an ideal choice for voltage suppression needs. With its ability to deliver ripple-free DC power and low on-state losses, it is an ideal choice for temperature and humidity control circuits.

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