BZV55-B9V1,115

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Zener diodes are a type of diode designed to precisely control the voltage in many types of circuits. The Zener’s breakdown voltage, designed to be as low as possible, will remain fairly constant, even if overloaded, further adding to its flexibility. A single diode in the BZV55-B9V1,115 series is a popular choice of Zener diode for these applications since it offers a wide range of voltages from 9V to 115V.

The BZV55-B9V1,115 series of Zener diodes are generally used for two purposes:

• As a voltage regulator – when the voltage exceeds the Zener’s breakdown voltage the device behaves like a normal diode and shunts any excess current to ground, thus ensuring that the voltages remain constant.
• As a voltage reference – when the voltage drops below the breakdown voltage, the diode can no longer conduct current, thus preventing any further drop in voltage. This provides a voltage reference which can be used to accurately control voltages throughout a circuit.

The working principle of this series of Zener diodes is relatively simple. When a low voltage is applied to the diode, the electrons in the P-type material will be attracted by the anode and flow into the N-type material, forming a current. As the voltage across the diode increases, the number of electrons in the P-type material increases, forming a “barrier” to the flow of current. At a certain voltage, known as the Zener breakdown voltage, this barrier will be overcome and current will be allowed to flow.

Once the Zener breakdown voltage has been attained, the voltage across the diode will remain fairly constant, regardless of the amount of current flowing through it. This is what makes the diode useful as a voltage regulator or voltage reference. When used as a voltage regulator, if the voltage across the load exceeds the Zener breakdown voltage, the Zener acts as a normal diode and shunts the excess current to ground.

If the voltage across the load drops below the Zener breakdown voltage, the Zener will no longer be able to conduct current, thus preventing any further drop in voltage. This provides a precise reference voltage which can be used to control other voltages throughout the circuit. The precise voltage of the Zener can be selected from its series.

The BZV55-B9V1,115 series is a popular choice for Zener diode applications since it offers a wide range of voltages from 9V to 115V. It is small and relatively inexpensive, making it ideal for many applications. The Zener can be used as either a voltage regulator or voltage reference, allowing for precise voltage control in a wide variety of circuits.

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