BAS521LP-7

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Diodes are a type of electrical component that allows current to flow through it in one direction only. Rectifiers are diodes specifically designed to convert alternating current (AC) to direct current (DC). Single diodes, as the name implies, comprise of a single diode element. The BAS521LP-7, manufactured by Diodes Incorporated, is a single diode rectifier specifically designed for low power applications.

The application field of the BAS521LP-7 is limited; most notably to the automotive sector. It is primarily used for the starting, lighting and ignition systems of vehicles. It provides the voltage necessary for ignition and is able to withstand the high current generated from the spark plug. Other automotive applications include on-board diagnostic (OBD) systems, airbag systems and sensors.

The working principle of the BAS521LP-7 is as follows: during positive polarity, its anode is connected to the positive power source and its cathode connected to the load. During negative polarity, its cathode is connected to the negative power source, while its anode is connected to the load. As a result, voltage is applied to the load only during positive polarity, and current flows in the opposite direction during negative polarity. In this manner, the BAS521LP-7 is able to convert AC to DC.

The BAS521LP-7 is able to operate at as low a voltage as 12V, making it suitable for vehicle systems. Its on-state resistance is typically 0.4 ohms, allowing for a fast switch time for the starting and lighting systems. Furthermore, its reverse leakage current is extremely low at 200uA, meaning it will not waste unnecessary energy while in reverse polarity.

Due to its low voltage, low power and low leakage current requirements, the BAS521LP-7 is a widely used single diode rectifier specifically designed for automotive applications. Its low power requirements make it ideal for applications such as the starting, lighting and ignition systems of vehicles, as well as for onboard diagnostics, airbag systems and sensors.

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