CDLL981B

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CDLL981B Application Field and Working Principle

CDLL981B is a type of diode, more specifically a single Zener diode. As opposed to other types of diodes, the CDLL981B is designed to operate in reverse bias. An electric current passes through the diode from the cathode to the anode, but it is blocked in the opposite direction.

Application Field

CDLL981B diodes are commonly used in electronic systems and transistor applications that require voltage stabilization, such as power supplies and regulated power supplies. They can also be used in circuits in which they serve as protection elements against overvoltage, as well as current limitation. Another common use of Zener diodes like CDLL981B is as a reference voltage source.

Working Principle

When the voltage applied to the CDLL981B diode is below its reverse breakdown voltage, the diode conductance is very low. This means that the voltage across the diode is practically the same as the applied voltage. Once the voltage applied reaches the reverse-breakdown level, the diode begins to behave differently. The voltage across the diode no longer follows the applied voltage. Instead, it remains stable and constant, up to the maximum rated power of the diode. This phenomenon is called the Zener effect, and it is what makes a Zener diode such a useful component.

The practical applications for the CDLL981B can therefore vary depending on its intended use. In the case of voltage stabilization, the diode will be used to ensure the proper operation of other components in the circuit, while in the case of overvoltage protection the Zener effect can be used to provide "clamping" at the rated Zener voltage.

Conclusion

CDLL981B diodes are a type of single Zener diode, which are designed to operate in reverse bias. They are commonly used in circuits for voltage stabilization, overvoltage protection and as reference voltage source. The remarkable feature of these diodes is the Zener effect, which is the ability of the diode to remain stable up to its maximum rated power. This is what makes Zener diodes such a valuable component in practical applications.

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