1N4749A-TR

Product Overview

The 1N4749A-TR is a Zener diode belonging to the semiconductor category. It is commonly used for voltage regulation and protection in electronic circuits. This diode exhibits characteristics such as stable voltage output, low impedance, and high reliability. The package type for the 1N4749A-TR is typically through-hole, and it is available in various packaging quantities to suit different production needs.

Specifications

• Voltage: 24V
• Power Dissipation: 1W
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +200°C

Pin Configuration

The 1N4749A-TR has a standard axial lead configuration with two leads. The anode is connected to the positive terminal of the circuit, while the cathode is connected to the negative terminal.

Functional Features

The primary function of the 1N4749A-TR is to maintain a constant voltage across its terminals, regardless of changes in the input voltage or load current. This makes it ideal for stabilizing power supplies and protecting sensitive components from voltage spikes.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Low impedance
• High reliability
• Wide operating temperature range

Disadvantages

• Limited power dissipation capability
• Voltage tolerance may not be suitable for some precision applications

Working Principles

The 1N4749A-TR operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased at its specified breakdown voltage. This allows it to act as a voltage regulator in electronic circuits.

Application Field Plans

The 1N4749A-TR finds extensive use in various electronic devices and systems, including: - Power supply units - Voltage reference circuits - Overvoltage protection modules - Signal conditioning circuits

Alternative Models

For those seeking alternatives to the 1N4749A-TR, several similar Zener diodes are available, including: - 1N4733A-TR (5.1V) - 1N4742A-TR (12V) - 1N4750A-TR (27V)

In conclusion, the 1N4749A-TR Zener diode serves as a reliable and effective component for voltage regulation and protection in electronic circuits, offering precise voltage control and high reliability within a wide operating temperature range.

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