80CNQ040A

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Diodes - Rectifiers - Arrays is a category of rectifiers and arrays used in semiconductor materials for a variety of applications. In this article, we will be focusing on the 80CNQ040A and its applications and working principles.

The 80CNQ040A is a 4A Quad Schottky Barrier Rectifier Array, in the TO-220AB Package. This device has low leakage for extended conduction and reverse blocking capability, and features an integrated ferrite bead for EMI filtering. The device can operate at a maximum junction temperature of 150°C, and is rated for 0.5A at a minimum of 50V.

The main application of the 80CNQ040A is in automotive and industrial power applications, typically used as a static rectifier in the primary power supply, such as DC-DC converters or Class-D amplifiers. It can also be used in reverse-bias protection circuits, or other transient power handling applications.

The working principle of the 80CNQ040A follows that of a basic rectifier, with the device made up of four individual diodes. When a forward biased voltage is supplied across the anode and cathode, electrons from the n-type region will move to the anode, and holes from the p-type region will move to the cathode, allowing current in only one direction. In reverse-bias conditions, the depletion region of the diode will widen to prevent current conduction.

The 80CNQ040A also features a ferrite bead, which helps to reduce EMI emissions. This is done by increasing the inductance of a circuit, in order to create a high-impedance path for HF noise. This provides an effective high-impedance barrier for EMI, ensuring that the device is able to operate without interference from external components.

Overall, the 80CNQ040A is a high-performance quad Schottky rectifier array, with a robust design, and a range of applications in automotive and industrial power applications. The integrated ferrite bead provides excellent protection from EMI, and the device works in line with the basic principles of rectification, providing a reliable and efficient power source.

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