1N4746A BK

1N4746A BK Diodes - Zener - Single Application Field and Working Principle

1N4746A BK is a 4.7V zener diode, with a maximum power dissipation of 900mW and a peak reverse voltage of 5.6V. It is categorized as a single type of diode and its application fields include surge protection, biasing, rectification and voltage regulation. The 1N4746A BK diode is suitable for both small signal and power control applications.

The working principle behind the 1N4746A BK diode revolves around the current-voltage relationship that it adheres to. When forward bias is applied to the diode, the zener knee voltage is reached when the current passes through the depletion layer and the parallel junction. This manifests as a breakdown voltage, which will then remain stable and constant over a certain range of applied voltages.

Furthermore, current is allowed to flow in the reverse-biased direction, in the form of localized current when the Zener voltage is reached. This reverse-biased current is known as the breakdown current. The breakdown current is a function of the Zener Voltage, and when the Zener Voltage changes, so will the breakdown current.

The 1N4746A BK diode utilizes the combined principles of forward bias and reverse bias to provide an effective and reliable source of regulated voltage. When a reverse bias is applied to the device, the electrons and holes will be separated and no current will flow. When a forward bias is then applied, the electrons will be attracted to the positive terminal, and the holes will be attracted to the negative terminal. This will then result in current flow through the diode.

When a positive voltage is then applied to the device, the current flowing through it will increase until it reaches the breakdown voltage. When this voltage is reached, the diode will then be in avalanche as the voltage continues to increase. This will result in the Zener Voltage being maintained over a range of applied voltages, making it a great source of regulated voltage supply.

The 1N4746A BK diode is a robust and effective source of regulated voltage and is suitable for many applications including surge protection, biasing, rectification and voltage regulation. It is constructed from a silicon substrate and is designed to provide power control and small signal protection. The working principle of the 1N4746A BK diode is based on the current-voltage relationships that it adheres to, and it utilizes the combined principles of forward bias and reverse bias to provide a reliable and stable source of voltage regulation.