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1N4749ATR
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1N4749ATR - Diode Zener Single 24V 5% 1W 2-Pin DO-41 T/R

Product Overview

Category

The 1N4749ATR belongs to the category of diodes, specifically a Zener diode.

Use

It is commonly used for voltage regulation and voltage reference applications.

Characteristics

  • Voltage: 24V
  • Power Dissipation: 1W
  • Tolerance: ±5%
  • Package: DO-41
  • Packaging/Quantity: Tape and Reel (T/R)

Specifications

  • Voltage - Zener (Nom): 24V
  • Power - Max: 1W
  • Tolerance: ±5%
  • Voltage - Forward (Vf) (Max) @ If: 1.2V @ 200mA
  • Current - Reverse Leakage @ Vr: 5µA @ 20V
  • Operating Temperature: -65°C ~ 200°C

Detailed Pin Configuration

The 1N4749ATR has a 2-pin DO-41 package with the anode connected to pin 1 and the cathode connected to pin 2.

Functional Features

This Zener diode provides a stable reference voltage when operated in its reverse breakdown region.

Advantages

  • Precise voltage regulation
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

When the reverse voltage across the diode reaches the specified Zener voltage, it begins to conduct, maintaining a nearly constant voltage drop across its terminals.

Detailed Application Field Plans

The 1N4749ATR is widely used in various electronic circuits such as voltage regulators, overvoltage protection, and signal conditioning.

Detailed and Complete Alternative Models

  • 1N4733A: 5.1V Zener diode
  • 1N4736A: 6.8V Zener diode
  • 1N4742A: 12V Zener diode
  • 1N4750A: 27V Zener diode

In conclusion, the 1N4749ATR Zener diode serves as a crucial component in electronic circuits requiring stable voltage references and regulation. Its precise characteristics make it suitable for a wide range of applications, despite its limitations in power dissipation and temperature sensitivity.

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Enumerați 10 întrebări și răspunsuri comune legate de aplicarea lui 1N4749ATR în soluțiile tehnice

  1. What is the 1N4749ATR?

    • The 1N4749ATR is a 24V, 1W Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What are the typical applications of the 1N4749ATR?

    • It is commonly used in voltage regulator circuits, overvoltage protection, and as a reference voltage source.

  3. What is the maximum power dissipation of the 1N4749ATR?

    • The 1N4749ATR has a maximum power dissipation of 1 watt.

  4. What is the voltage tolerance of the 1N4749ATR?

    • The voltage tolerance of the 1N4749ATR is +/- 5%.

  5. What is the operating temperature range of the 1N4749ATR?

    • The 1N4749ATR typically operates within a temperature range of -65°C to +200°C.

  6. How do I identify the cathode and anode of the 1N4749ATR?

    • The cathode end of the 1N4749ATR is typically marked with a band or a line on the body of the diode.

  7. Can the 1N4749ATR be used for reverse polarity protection?

    • Yes, the 1N4749ATR can be used for reverse polarity protection by connecting it in series with the power supply.

  8. What are some common alternatives to the 1N4749ATR?

    • Common alternatives include the 1N4733A, 1N4742A, and 1N4751A, which have different voltage ratings.

  9. What are the key considerations when designing a circuit with the 1N4749ATR?

    • Key considerations include the maximum current, power dissipation, and voltage regulation requirements of the circuit.

  10. Where can I find the detailed specifications and datasheet for the 1N4749ATR?

    • The detailed specifications and datasheet for the 1N4749ATR can be found on the manufacturer's website or through electronics component distributors.