CDLL3047A-1

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Diodes are electronics components that allow electricity to pass in one direction but not the other. One specific kind of diode is the zener diode, which permits a certain amount of voltage to pass in both directions. The CDLL3047A-1 is an example of a single zener diode. Its application field and working principle will be discussed in this article.

Application Field

The CDLL3047A-1 is a silicon zener diode, found in applications where voltage regulation or voltage reference is desired. It is suitable for field effect tube (FET) voltage clamping circuits and hybrid circuits. The CDLL3047A-1 is also frequently used as a voltage clamp in the protection of high voltage circuits, particularly in cases where surge protection is needed. When used in circuits involving high voltages, these diodes are often placed in series in order to increase the breakdown voltage.

Working Principle

A normal diode only allows electric current to flow in one direction, and blocks it in the other. When an external voltage above the “breakdown voltage” is applied to the anode of a zener diode, an avalanche breakdown occurs within the diode, causing the voltage drop across the diode to remain nearly constant regardless of the current flow. This action makes the zener diode useful for voltage regulation because it always maintains a nearly constant voltage drop across its terminals, allowing the current flowing through it to be regulated accordingly. The CDLL3047A-1 is able to supply up to 400mA of continuous current and can provide a stable voltage drop across its terminals of 3.45V.

Conclusion

The CDLL3047A-1 is an example of a single zener diode. Its application field includes high voltage circuit protection, FET voltage clamping, and hybrid circuits. When in operation, the zener diode is able to provide a stable voltage drop of 3.45V across its terminals and can provide a continuous current of up to 400mA. This makes the CDLL3047A-1 useful for voltage regulation or voltage reference circuits.

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