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1N4744A-T
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1N4744A-T

Product Overview

Category:

The 1N4744A-T belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a constant voltage across their terminals.

Use:

This product is commonly used in electronic circuits for voltage regulation and protection against voltage spikes.

Characteristics:

  • Zener voltage: 15V
  • Power dissipation: 1.0W
  • Package type: Axial leaded
  • Operating temperature range: -65°C to +200°C

Package:

The 1N4744A-T is typically available in a DO-41 axial package.

Packaging/Quantity:

It is commonly packaged in reels or tubes containing quantities suitable for production runs or prototyping.

Specifications

  • Zener Voltage: 15V
  • Power Dissipation: 1.0W
  • Maximum Forward Voltage: 1.2V
  • Reverse Leakage Current: 5μA
  • Temperature Coefficient: 5mV/°C

Detailed Pin Configuration

The 1N4744A-T has two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage Regulation: The 1N4744A-T provides a stable voltage output when operated within its specified parameters.
  • Overvoltage Protection: It helps protect sensitive components in a circuit by limiting the voltage across them.

Advantages and Disadvantages

Advantages

  • Precise Voltage Regulation
  • Compact Size
  • Easy to Implement in Circuit Designs

Disadvantages

  • Limited Power Dissipation Capability
  • Susceptible to Thermal Runaway if Not Properly Cooled

Working Principles

The 1N4744A-T operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at or above its breakdown voltage.

Detailed Application Field Plans

Voltage Regulation

The 1N4744A-T can be used in power supplies, voltage references, and precision voltage clamping circuits.

Overvoltage Protection

It can be employed in electronic systems to protect sensitive components from voltage surges and transients.

Detailed and Complete Alternative Models

  • 1N4733A-T (Zener voltage: 5.1V)
  • 1N4736A-T (Zener voltage: 6.8V)
  • 1N4748A-T (Zener voltage: 18V)

In conclusion, the 1N4744A-T Zener diode is a versatile component widely used for voltage regulation and overvoltage protection in various electronic applications.

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技術ソリューションにおける 1N4744A-T の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the 1N4744A-T diode used for?

    • The 1N4744A-T is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the maximum power dissipation of the 1N4744A-T?

    • The maximum power dissipation of the 1N4744A-T is 1.0 watt.

  3. What is the voltage rating of the 1N4744A-T?

    • The 1N4744A-T has a nominal Zener voltage of 15 volts.

  4. How does the 1N4744A-T function in voltage regulation?

    • The 1N4744A-T conducts current in reverse-bias mode when the voltage across it exceeds its Zener voltage, effectively regulating the voltage.

  5. What are the typical applications of the 1N4744A-T?

    • Typical applications include voltage regulation, overvoltage protection, and voltage reference in various electronic circuits.

  6. What is the maximum forward voltage drop of the 1N4744A-T?

    • The maximum forward voltage drop of the 1N4744A-T is 1.5 volts at a forward current of 200 mA.

  7. What is the temperature coefficient of the 1N4744A-T?

    • The temperature coefficient of the 1N4744A-T is typically around -2.0 mV/°C.

  8. Can the 1N4744A-T be used in reverse bias?

    • Yes, the 1N4744A-T is designed to operate in reverse bias as a Zener diode.

  9. What is the maximum reverse leakage current of the 1N4744A-T?

    • The maximum reverse leakage current at the Zener voltage is typically 5 µA.

  10. What are the package options available for the 1N4744A-T?

    • The 1N4744A-T is available in various packages such as DO-41, SOD-123, and SMA.