1N5754B

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Diodes - Zener - Single

The 1N5754B is a two terminal semiconductor device that acts as a voltage regulator. It was designed specifically as a Zener diode, a Zener diode is a special type of diode which has an avalanche breakdown voltage greater than the rating on the device. Under this breakdown voltage, electrons are accelerated to very high speed and collide with the lattice nuclei of the crystal structure. This collision creates a large number of very energetic electron-hole pairs, known as carriers. As the avalanche breakdown continues, these electrons and holes are able to flow throughout the device, creating a large amount of current. The breakdown voltage of the 1N5754B is 37V.

Due to its low power consumption and excellent reverse breakdown voltage characteristics, the 1N5754B is well suited for a variety of applications including voltage regulation, radio frequency amplifiers, broadcasting equipment, scanners, amplifiers, receivers, and semiconductor test equipment. The device can also be used in battery-backed power supply systems to ensure a constant output voltage even with the changing battery voltage. It is also often used in voltage-sensed ICs to provide a steady voltage source.

The 1N5754B has an average noise rise over specified reverse breakdown voltage of less than 1.4mV. The device also has a thermal resistance junction to ambient of less than 1.2°C/W. The product is listed and classified to UL 94V-0 flammability rating.

This device has a common discrete application where it is used as a voltage reference in voltage regulators in circuits. It is placed in series with the load, and the device starts to conduct when the voltage across it reaches the Zener breakdown voltage. This way, the maximum voltage applied to the load is limited to the Zener voltage. The Zener diode also sets the output voltage of the voltage regulator, because the voltage across it remains constant, regardless of load current or any other changes in the circuit.

In voltage regulators, the 1N5754B is often placed in series with an additional device, such as a regular diode or a transistor. This way, the Zener diode only draws current through itself when the voltage across it is higher than the Zener voltage. Therefore, when the voltage is below the Zener voltage, the load current is interrupted and only the additional device draws current through it. This arrangement is known as a series regulator or series voltage regulator.

The basic operation principle of the 1N5754B can also be applied in various circuits. For example, the device can be used as a voltage limiter, in surge suppressors, and in noise suppression circuits. When used in these applications, its operation is similar to that of an overvoltage protection device.

In addition, the 1N5754B can also be employed as an electronic switch in optoelectronic circuits. It is also used as a sensing component in temperature sensing circuits. Here, the device regulates the power to the load when the temperature exceeds a certain threshold.

Overall, the 1N5754B is an extremely versatile component that can be used in a variety of applications. Its wide range of features and low cost makes it a popular choice for a variety of applications. With its low power consumption and excellent reverse breakdown voltage characteristics, it is an ideal component for voltage regulation and other applications.

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