CDLL4738 Product Overview

Introduction

The CDLL4738 is a crucial component in the field of electronic devices, serving a variety of purposes across different applications. This entry will provide an in-depth overview of the CDLL4738, including its product category, use, characteristics, packaging, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category and Use

The CDLL4738 belongs to the category of Zener diodes, which are widely used for voltage regulation and protection in electronic circuits. These diodes are specifically designed to maintain a constant voltage across their terminals, making them essential for stabilizing voltage levels in various electronic applications.

Characteristics

The CDLL4738 exhibits a stable and precise voltage regulation capability, making it suitable for use in power supplies, voltage references, and voltage clamping applications. It is characterized by its low dynamic resistance and high reliability, ensuring consistent performance under varying operating conditions.

Package and Essence

The CDLL4738 is typically packaged in a small, cylindrical glass enclosure with axial leads, allowing for easy integration into circuit boards. Its essence lies in providing accurate voltage regulation and transient voltage suppression, safeguarding sensitive components from voltage spikes.

Packaging/Quantity

The CDLL4738 is commonly available in tape and reel packaging, with quantities ranging from hundreds to thousands per reel, catering to the production needs of various electronic manufacturers.

Specifications

• Voltage Range: 3.3V to 200V
• Power Dissipation: 1.0W
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +175°C
• Storage Temperature Range: -65°C to +200°C

Detailed Pin Configuration

The CDLL4738 features a standard axial lead configuration, with the cathode identified by a black band around one end of the diode. The anode is connected to the other lead, allowing for straightforward integration into circuit layouts.

Functional Features

• Voltage Regulation: Maintains a constant voltage across its terminals, ensuring stability in electronic circuits.
• Transient Voltage Suppression: Protects sensitive components from voltage spikes and transients, enhancing system reliability.
• Low Dynamic Resistance: Enables efficient current flow while regulating voltage, minimizing power loss.

Advantages and Disadvantages

Advantages

• Precise Voltage Regulation
• High Reliability
• Low Dynamic Resistance
• Compact Size

Disadvantages

• Limited Power Dissipation Capability
• Susceptible to Overheating if Exceeding Operating Limits

Working Principles

The CDLL4738 operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals by allowing current to flow in reverse bias when the applied voltage reaches its breakdown voltage.

Detailed Application Field Plans

The CDLL4738 finds extensive use in various applications, including: - Voltage Regulation in Power Supplies - Overvoltage Protection in Electronic Circuits - Voltage References in Precision Instrumentation - Transient Voltage Suppression in Communication Systems

Detailed and Complete Alternative Models

Several alternative models to the CDLL4738 include: - 1N4728A - BZX85C3V3 - LM431BIM3X

In conclusion, the CDLL4738 Zener diode plays a pivotal role in maintaining voltage stability and protecting electronic systems from voltage fluctuations. Its precise regulation capabilities and reliability make it a preferred choice in diverse electronic applications.

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