PDZ20B/ZLX

Product Category

The PDZ20B/ZLX belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a specific voltage across their terminals.

Basic Information Overview

• Use: The PDZ20B/ZLX is primarily used for voltage regulation and protection in electronic circuits.
• Characteristics: It exhibits a sharp breakdown voltage and low dynamic impedance, making it suitable for precision voltage regulation.
• Package: The PDZ20B/ZLX is available in a small surface-mount package, facilitating easy integration into compact electronic designs.
• Essence: This Zener diode serves as a crucial component in stabilizing voltage levels within electronic systems.
• Packaging/Quantity: It is typically supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Range: 2.4V to 75V
• Power Dissipation: 500mW
• Operating Temperature Range: -65°C to 150°C
• Zener Test Current: 5mA

Detailed Pin Configuration

The PDZ20B/ZLX features a standard SOD-323 package with two pins. Pin 1 is the cathode, while pin 2 is the anode.

Functional Features

• Voltage Regulation: The PDZ20B/ZLX maintains a constant voltage across its terminals, ensuring stability in electronic circuits.
• Overvoltage Protection: It safeguards sensitive components by diverting excess voltage away from the circuit.

Advantages and Disadvantages

Advantages

• Precise Voltage Regulation
• Compact Package Size
• Low Dynamic Impedance

Disadvantages

• Limited Power Dissipation Capacity
• Susceptible to Thermal Runaway at High Currents

Working Principles

When the voltage across the PDZ20B/ZLX exceeds its breakdown voltage, it begins conducting, effectively clamping the voltage to its specified level. This action protects downstream components from excessive voltage.

Detailed Application Field Plans

The PDZ20B/ZLX finds extensive use in various applications, including: - Voltage Regulation in Power Supplies - Overvoltage Protection in Communication Systems - Signal Clipping in Audio Circuits

Detailed and Complete Alternative Models

• PDZ18B/ZLX: Similar characteristics with a lower breakdown voltage
• PDZ24B/ZLX: Higher breakdown voltage for different voltage regulation requirements
• PDZ20C/ZLX: Enhanced power dissipation capability for higher current applications

In conclusion, the PDZ20B/ZLX Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it an essential component in numerous electronic applications.

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