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.

Specifications

Voltage: 24V
Power Dissipation: 1.0W
Zener Voltage Tolerance: ±5%
Operating Temperature Range: -65°C to +200°C

Detailed Pin Configuration

The 1N4749A TR has two pins, anode (A) and cathode (K), with the anode being the positive terminal and the cathode being the negative terminal.

Functional Features

Voltage Regulation: The 1N4749A TR provides a stable output voltage under varying load conditions.
Overvoltage Protection: It protects sensitive components in a circuit by limiting the voltage across them.
Low Impedance: This diode offers low dynamic resistance, making it suitable for precision voltage regulation applications.

Advantages and Disadvantages

Advantages

Reliable voltage regulation
Low impedance
Overvoltage protection

Disadvantages

Limited current handling capability
Sensitivity to temperature variations

Working Principles

The 1N4749A TR operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased. This allows it to regulate the voltage in a circuit by diverting excess current when the voltage exceeds its specified value.

Detailed Application Field Plans

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

Detailed and Complete Alternative Models

Some alternative models to the 1N4749A TR include: - 1N4733A TR (5.1V) - 1N4742A TR (12V) - 1N4756A TR (68V)

In summary, the 1N4749A TR Zener diode is a reliable component for voltage regulation and overvoltage protection in electronic circuits. Its stable characteristics and wide range of applications make it a popular choice among engineers and designers.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням 1N4749A TR у технічних рішеннях

What is the 1N4749A TR diode used for?
- The 1N4749A TR diode is commonly used as a voltage regulator in various technical solutions.
What is the maximum voltage rating of the 1N4749A TR diode?
- The maximum voltage rating of the 1N4749A TR diode is 24 volts.
What is the typical current rating for the 1N4749A TR diode?
- The typical current rating for the 1N4749A TR diode is 1 watt.
How does the 1N4749A TR diode regulate voltage?
- The 1N4749A TR diode regulates voltage by maintaining a constant voltage drop across its terminals, providing a stable output voltage.
What are the common applications of the 1N4749A TR diode?
- Common applications of the 1N4749A TR diode include voltage regulation in power supplies, voltage clamping, and overvoltage protection.
What is the forward voltage drop of the 1N4749A TR diode?
- The forward voltage drop of the 1N4749A TR diode is typically around 1 volt.
Can the 1N4749A TR diode be used in reverse bias?
- Yes, the 1N4749A TR diode can be used in reverse bias for certain applications such as voltage clamping.
What is the temperature range for the 1N4749A TR diode?
- The 1N4749A TR diode typically operates within a temperature range of -65°C to +200°C.
Is the 1N4749A TR diode suitable for high-frequency applications?
- The 1N4749A TR diode is not typically recommended for high-frequency applications due to its inherent capacitance and response time.
Are there any specific soldering or mounting considerations for the 1N4749A TR diode?
- It is important to follow the manufacturer's guidelines for soldering and mounting the 1N4749A TR diode to ensure proper performance and reliability in technical solutions.