1N2138A

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1N2138A Application Field and Working Principle

Introduction

1N2138A is a type of diode which is used for rectifiers in the field of electronics. This diode belongs to the class of the single rectifiers and the model number is 1N2138A. This type of diode was invented and manufactured in the 1960s and is still widely used today in various electronics applications.

Application

The 1N2138A is a type of semiconductor device which is basically a "rectifier". Its purpose is to change or convert alternating current (AC) into direct current (DC). It is mostly used in power electronics circuits for filtering, rectification, and voltage regulation purposes. The 1N2138A is most commonly used in DC power supplies, dc-dc converters, ac-dc inverters, bipolar power amplifiers, and various voltage control circuits. It can also be used in ac-dc power supplies for rectification. This diode can be connected either in parallel or in series with other diodes to create more complex circuits.

Working Principle

The working principle of the 1N2138A is very simple. At the heart of this diode is a junction between a p-type and an n-type material. This junction is known as a p-n junction. When a forward-biased voltage is applied across the junction, electrons from the n-side diffuse across the junction into the p-side and current flow takes place. In this way, the current flows through the diode to the output and the AC signal is rectified into DC.

In the case of reverse biased voltage, the electrons from the p-side diffuses into the n-side and no current can pass through the diode. Therefore, the diode becomes non-conductive and works as an insulator. This is how the 1N2138A works in a basic form.

Conclusion

The 1N2138A is a type of diode which belongs to the class of single rectifiers. It is a semiconductor device which is used in order to change or convert alternating current (AC) into direct current (DC). It is mostly used in power electronics circuits for filtering, rectification, and voltage regulation purposes. The 1N2138A is also used in DC power supplies, dc-dc converters, ac-dc inverters, bipolar power amplifiers, and various voltage control circuits. The working principle of the 1N2138A is based on the diffusion of electrons across a p-n junction. This diode is able to perform rectification and can be connected in parallel or in series with other diodes to create more complex circuits.

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