Taiwan Semiconductor Corporation
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1N4749AHR1G
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1N4749AHR1G

Product Overview

The 1N4749AHR1G belongs to the category of Zener diodes, which are widely used in electronic circuits for voltage regulation and protection. These diodes exhibit unique characteristics that make them suitable for various applications. The 1N4749AHR1G is typically packaged in a small, cylindrical glass package and is available in quantities suitable for both hobbyist and industrial use.

Specifications

  • Voltage: 24V
  • Power Dissipation: 1.0W
  • Zener Voltage Tolerance: ±5%
  • Operating Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The 1N4749AHR1G has two pins, with the cathode being shorter than the anode. It follows the standard pin configuration for axial leaded diodes.

Functional Features

The primary function of the 1N4749AHR1G is to maintain a constant voltage across its terminals when it is operated within its specified current and power ratings. This makes it ideal for voltage regulation in various electronic circuits.

Advantages and Disadvantages

Advantages

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

Disadvantages

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

Working Principles

The 1N4749AHR1G operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when it is reverse-biased and operated within its specified parameters.

Detailed Application Field Plans

The 1N4749AHR1G finds extensive use in: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4749AHR1G include: - 1N4733A: 5.1V Zener diode - 1N4742A: 12V Zener diode - BZX55C24: 24V Zener diode

In conclusion, the 1N4749AHR1G Zener diode offers precise voltage regulation and protection in a compact package, making it suitable for a wide range of electronic applications.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van 1N4749AHR1G in technische oplossingen

  1. What is the 1N4749AHR1G diode used for?

    • The 1N4749AHR1G is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the maximum power dissipation of the 1N4749AHR1G?

    • The maximum power dissipation of the 1N4749AHR1G is 1.3 watts.

  3. What is the voltage rating of the 1N4749AHR1G?

    • The 1N4749AHR1G has a nominal voltage rating of 24 volts.

  4. How does the 1N4749AHR1G regulate voltage?

    • The 1N4749AHR1G regulates voltage by maintaining a constant output voltage across its terminals, even when the input voltage varies.

  5. Can the 1N4749AHR1G be used for overvoltage protection?

    • Yes, the 1N4749AHR1G can be used to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.

  6. What are the typical applications of the 1N4749AHR1G?

    • Typical applications include voltage regulation in power supplies, overvoltage protection in electronic circuits, and voltage reference in precision measurement equipment.

  7. What is the forward voltage drop of the 1N4749AHR1G?

    • The forward voltage drop of the 1N4749AHR1G is typically around 1.2 volts.

  8. Is the 1N4749AHR1G polarity-sensitive?

    • Yes, the 1N4749AHR1G is polarity-sensitive and should be connected with the anode terminal at a higher potential than the cathode terminal.

  9. What is the temperature coefficient of the 1N4749AHR1G?

    • The temperature coefficient of the 1N4749AHR1G is typically around -2.2 mV/°C.

  10. Can the 1N4749AHR1G be used in automotive electronics?

    • Yes, the 1N4749AHR1G can be used in automotive electronics for voltage regulation and transient protection applications within specified operating temperature ranges.