CDLL6311

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	3V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	29 Ohms
Current - Reverse Leakage @ Vr:	30µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB

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Introduction

The CDLL6311 is a small single-die Zener diode designed for a variety of applications where an efficient, low cost device is required. The diode offers very low leakage current, low capacitance, and high voltage stability, making it an ideal choice for applications in electronic systems. This article will explore the CDLL6311\'s application field and working principles.

Description

The CDLL6311 Zener diode is constructed using silicon diffusions on a N-type semiconductor substrate. It is encapsulated in a hermetically-sealed metal package with voltage ratings up to 500V and operating temperatures up to 200°C. The device has an on-state resistance of 1.6 mΩ, a reverse breakdown voltage of 412V, an off-state voltage drop of <1V, and a flat frequency response from DC to 40GHz.The device is widely used in a variety of applications such as voltage regulation, reverse bias protection, and power supply line clamps. It is also suitable for temperature sensing, sensing current, and current limiting.

Application Field

The CDLL6311 is most commonly used as a voltage regulator, particularly in industrial control systems. It is typically used to regulate the voltage of low-voltage circuits and systems, such as AC generators and inverters, DC rails, and motor controllers. It is also used to protect data lines and logic circuits from unbalanced power supply voltage, and to suppress noise and spikes on the power supply lines.In addition to its use in industrial control systems, the device is also used in electronics and communications systems, including cell phone and wireless systems, radio broadcasting, and digital media systems. It is also used in automotive and aerospace systems for voltage regulation and reverse bias protection.

Working Principle

The CDLL6311 Zener diode works by allowing high reverse current flow through the device when the voltage across the diode exceeds its breakdown voltage. This current flow is known as “Zener Breakdown” and is used to regulate the voltage across the diode, limiting it to a specific value.When the device is subjected to a voltage higher than its breakdown voltage, it passes a large current which is limited by the on-state resistance of the device. This limits the voltage across the device to the breakdown voltage, producing a stable and regulated voltage across the diode.

Conclusion

The CDLL6311 is a small Zener diode designed for a variety of applications requiring low cost, low leakage, and high voltage stability. It is primarily used as a voltage regulator in industrial control systems and electronics and communication systems, but can also be used for temperature sensing, sensing current, and current limiting. The device works by allowing high reverse current flow through it when the voltage across the diode exceeds its breakdown voltage, which is used to regulate and limit the voltage across the diode.

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