CDBER42

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A CDBER42 is a single rectifier diode commonly used in applications where a higher voltage rating is needed. It is a low forward voltage drop device with fast switching capability and high reverse power dissipation. This makes it ideal for applications requiring low voltage drop and high stability.

The CDBER42\'s maximum rated forward current is 7A, while it can withstand up to 42V reverse voltage. It is designed to handle currents of up to 7A and feature a low forward voltage drop of 0.30V @ 5A. This allows it to minimize power dissipation and reduce losses. The device also features a reverse recovery time of 5ns, making it suitable for high frequency switching applications.

The CDBER42 is a popular choice for use in high power switching applications including power supplies, DC/DC converters, rectifiers, and motor drives. It is also used in the control of flyback converters, power factor correction circuits, and other power supply filter applications. The device is rated for a maximum junction temperature of 150°C and requires no protection from over-current, overload, or reverse polarity.

The working principle behind the CDBER42 is fairly simple. When connected in forward direction, the diode acts as an ideal switch, allowing current to flow through the device, while blocking current in the reverse direction. This is due to its asymmetric structure, with the cathode having a much higher doping level than the anode. This enables current to flow through the cathode and blocks current from flowing in the opposite direction.

When the reverse voltage exceeds the breakdown voltage, the CDBER42 reaches Avalanche Breakdown, where the breakdown voltage increases while the current stays the same. Avalanche breakdown occurs when the electric field around the junction becomes so large that the electrons can no longer be confined to their respective levels, resulting in them crossing over the junction barrier. Due to this, avalanche breakdown lowers the reverse breakdown voltage and increases the current flow.

In summary, the CDBER42 is a single rectifier diode that is commonly used in applications requiring high voltages. It features a low forward voltage drop and fast switching capability, making it suitable for high frequency switching applications. It is a popular choice for use in high power switching applications and is rated for a maximum junction temperature of 150°C, without requiring any protection from over-current or reverse polarity.

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