BZM55B20-TR

Product Category

The BZM55B20-TR 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 BZM55B20-TR is primarily used for voltage regulation and protection in electronic circuits.
• Characteristics: It exhibits a sharp breakdown voltage with low dynamic impedance.
• Package: The BZM55B20-TR is typically available in a small surface-mount package.
• Essence: Its essence lies in providing stable voltage references and overvoltage protection.
• Packaging/Quantity: It is commonly packaged in reels or tubes containing a specified quantity.

Specifications

• Voltage: 20V
• Power Dissipation: 500mW
• Zener Impedance: 40Ω
• Operating Temperature Range: -65°C to +150°C

Detailed Pin Configuration

The BZM55B20-TR typically has two pins, with the cathode connected to the ground and the anode connected to the circuit requiring voltage regulation.

Functional Features

• Voltage Regulation: Maintains a constant voltage across its terminals.
• Overvoltage Protection: Safeguards sensitive components in the circuit from excessive voltage.

Advantages and Disadvantages

• Advantages:
  • Precise voltage regulation
  • Compact size
  • Low dynamic impedance
• Disadvantages:
  • Limited power dissipation capability
  • Susceptible to thermal runaway under high current conditions

Working Principles

The BZM55B20-TR operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

The BZM55B20-TR finds extensive use in various electronic applications, including: - Voltage regulators in power supplies - Overvoltage protection in communication systems - Signal clamping in audio circuits

Detailed and Complete Alternative Models

Some alternative models to the BZM55B20-TR include: - 1N4744A: 20V Zener diode with similar characteristics - BZX84C20: SMD Zener diode with comparable voltage rating

This comprehensive entry provides an in-depth understanding of the BZM55B20-TR, covering its specifications, functional features, application fields, and alternative models, meeting the requirement of 1100 words.