CDLL957B

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	6.8V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	4.5 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 5.2V
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

CDLL957B, or Compact Disc Laser Diode, is a type of single Zener diode, which is used for a wide variety of applications, including power supplies, automotive and consumer electronics applications. This type of diode is constructed from a monolithic structure, combining the high voltage and current paths into a single package. It has been designed to be able to handle extreme conditions with up to 100V reverse voltage and a current of approximately 500 mA.

Application Field

CDLL957B is ideal for high-power applications due to its robust design and impressive operating temperature range. The diode is also well-suited for dual-polarity switching power supplies and can be used in a variety of industrial and consumer electronics applications. Common uses include motor and solenoid control, audio amplifiers, high-voltage switching and DC-DC converters.

Working Principle

When properly configured, CDLL957B can act as a Zener diode, which is a three-terminal device used to control the voltage of a circuit. Unlike a normal semiconductor diode, which has a positive voltage drop, a Zener diode has a reverse breakdown voltage, which is the voltage required to cause a large amount of current to flow in the reverse direction. In reverse bias, the current is limited to a relatively low value, and the voltage across the diode is clamped to the reverse breakdown voltage. This voltage can be adjusted by changing the concentration of the diode material.

Construction

CDLL957B is constructed by depositing layers of different semiconductor materials onto a single substrate. The lower layers of the substrate are composed of doped N-type material, while the upper layer is composed of P-type material. The junction between these two layers is called the PN junction, and is what enables the diode to regulate the voltage of the circuit.

Features and Benefits

CDLL957B boasts a number of impressive features and advantages. These include its small package size, high operating temperature range, robust construction, and dual-polarity switching capabilities. It also offers low leakage current, which helps to improve system-level efficiency. Lastly, its monolithic structure makes it easier to stack the single components in a PCB, helping to reduce board space requirements.

Conclusion

CDLL957B is a versatile single Zener diode with a range of impressive features and benefits. It is well-suited for applications in power supplies, automotive, and consumer electronics and can handle extreme conditions with up to 100V reverse voltage and 500mA current. Its small package size, robust design, monolithic structure, and dual-polarity switching capabilities make it an ideal choice for many different types of applications.

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