BAS19WTR

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Diodes - Rectifiers - Single

Schottky barriers diodes, commonly known as Schottky diodes, are semiconductor devices that are used for rectification and detection of signals in applications such as inverters, power conversion, and power switching. BAS19WT is one of the most common Schottky Barrier Diodes, manufactured by NXP Semiconductors, and is widely used in a wide array of applications which requires a high level of efficiency and performance.

Application field

The BAS19WT is a low-voltage, high-efficiency Schottky barrier rectifier diode that is specially designed to provide very low forward voltage drop and low power consumption. The device is commonly used in automotive, industrial equipment, DC-DC converter, and portable electronics applications that require high reliability, performance and high efficiency.

The BAS19WT can be used in a variety of applications, such as: AC-DC converters, battery chargers, automotive, power supplies, WDC converters, medical equipment, robotic systems and solar panels. The device can handle reverse voltages up to 80V, which makes it an excellent choice for applications that require a wide range of input voltages.

Working Principle

The BAS19WT is a bipolar (NPN and PNP) silicon semiconductor device, which means that it is composed of two layers of semiconductor materials - one layer of N-type (negative type) materials, and one layer of P-type (positive type) materials, that are in contact. The diode has a metal-semiconductor junction (Schottky junction) and acts as a rectifier that allows the passage of current through it, in only one direction and blocks it in the other direction.

When an external voltage is applied to the device, the N-type layers of the diodes acts as a n-channel and the P-type layer as p- channel. Electrons from the n-Side move through the channel towards the junction that consists of metal and silicon, which results in the creation of the so-called "Schottky Barrier", which creates a barrier for the passage of electrons in the opposite direction. At the same time, holes from the p-Channel move from p-Type layer towards the junction, forming a barrier for the passage of electrons.

When an external voltage is increased, the current that passes through the diode also increases because of the higher bias voltage. At the same time, the built-in Schottky barrier also increases, thus creating a higher efficiency of the complete device. With this, the BAS19WT is able to achieve an efficiency of up to 95% in comparison to other rectifier diodes.

The BAS19WT is a low-noise, fast-recovery diode that offers improved noise performance and reduced switching losses. It is capable of supplying very low forward voltage drop, low power consumption and high frequency operation. The device comes with a wide range of features that make it ideal for many applications that require high efficiency and performance.

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