CDLL4773

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

CDLL4773 is a single Zener diode. This diode is used in a variety of applications where it is necessary to maintain a consistent voltage level or provide a relatively low voltage across two circuits, allowing current to pass in one direction under specific conditions. It is a general-purpose part that serves as a reliable replacement for similar devices such as dual-anode zener diodes.

Application Field

CDLL4773 is suitable for use in a wide variety of applications where a Zener diode is needed. As a single zener, the device is especially useful in applications where a low voltage level needs to be maintained across two connected circuits. These applications could include voltage regulation, circuit protection, power supply, and communication circuits.

In most cases, the CDLL4773 is employed as a voltage clamp device, ensuring that the voltage across two points does not exceed a set level. This is especially useful in applications such as surge protecting circuits or protection against high-voltage discharges. Other applications include surge protection and voltage regulation, particularly in battery-operated equipment.

Working Principle

The device operates on the principle of negative temperature coefficient (NTC). When a current is applied to the device, the voltage across its terminals becomes zero. As the current increases, the voltage across its terminals changes in proportion. This behavior is referred to as the diode’s knee voltage.

The CDLL4773’s NTC-based Zener breakdown mode of operation acts as a clamp, allowing current to flow in one direction only unless the voltage level is greater than the knee voltage. When this occurs, the voltage across the terminals does not exceed the knee voltage and the device will start to conduct in both directions.

In addition to its NTC-based Zener breakdown mode, the device also employs a tunnel diode with a built-in voltage regulator. In this way, it is able to regulate the voltage level across its terminals even in the presence of high frequencies and intense levels of noise.

Conclusion

CDLL4773 is a single Zener diode used in a wide range of applications. It works on the principle of negative temperature coefficient, allowing current to flow in one direction unless the voltage level is greater than the knee voltage. In addition, the device has a built-in voltage regulator that helps keep the voltage level across its terminals within a set range even when high frequencies and noise are present. The device is especially useful as a voltage clamp, ensuring that the voltage levels do not exceed a certain level and providing protections against high-voltage surges or discharges.

The specific data is subject to PDF, and the above content is for reference