CDLL3028B

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	23 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 16.7V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB

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Introduction

The CDLL3028B is a single Zener diode. It has many applications where a Zener diode’s voltage regulation and protection capabilities are needed. It is a low current, low cost device perfect for static voltage applications. This article will discuss the various applications of this diode, including its working principle, as well as its various applications commonly used in the electronics industry.

Working Principle

The CDLL3028B is a Zener diode, meaning that its operation is based on the Zener effect. It has features to allow for a very specific voltage regulation and voltage spike protection. The Zener effect takes place when a diode is reverse-biased (reverse voltage is applied), and it conducts current with a drastically reduced voltage across it. This diode has a very low “Zener Voltage” (Vz at 0.7V) which allows it to be used in static voltage applications.In operation, the current passing through the diode will regulate itself to a predictable level when it is used in such a way as to create a Vz equal to or greater than the desired voltage. This current is known as the Zener current. The amount of current that will flow through the diode is dependent on the magnitude of the applied voltage. A larger applied voltage will allow for more current to flow and a larger Vz. In addition, the current will also be affected by the power dissipation of the diode.

Applications

The CDLL3028B can be used in a variety of application fields for static voltage regulation and protection. The most common applications of this diode involve circuit protection against transient voltage spikes, as well as overvoltage protection.

Transient Voltage Spike Protection

In some cases, when a circuit is exposed to voltage spikes, it can cause irreparable damage. The CDLL3028B can be used in order to protect the circuit from these sudden, unexpected increases in voltage. This diode can act as a clamp, limiting the amount of voltage that can be passed through the circuit to a safe level.

Overvoltage Protection

Another common application of the CDLL3028B is to provide overvoltage protection for sensitive electronics. For example, it can be used to protect a circuit from being overloaded by too much voltage. When an overvoltage is detected, the diode quickly begins to conduct and reduce the current in the circuit to a safe level.

Conclusion

The CDLL3028B is a low cost and low current single Zener diode, perfect for static voltage applications. It has wide applications and is used in a variety of scenarios. Its most popular uses involve circuit protection from transient voltage spikes and overvoltage protection. With its low Vz and low current dissipation, this diode can also be used to provide clean and regulated electrical output in various static voltage applications.

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