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1N4749 G
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1N4749 G - Semiconductor Diode

Product Overview

The 1N4749 G is a semiconductor diode belonging to the category of Zener diodes. It is commonly used for voltage regulation and protection in electronic circuits. This diode exhibits specific characteristics, comes in various packages, and is available in different quantities.

Basic Information

  • Category: Zener diode
  • Use: Voltage regulation and protection in electronic circuits
  • Characteristics: Reverse breakdown voltage, power dissipation, temperature coefficient
  • Package: DO-41, SOD-123, SOD-323
  • Essence: Regulating voltage in electronic circuits
  • Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

  • Voltage Range: 24V to 27V
  • Power Dissipation: 1.0W
  • Temperature Coefficient: 5mV/°C
  • Operating Temperature: -65°C to +200°C

Detailed Pin Configuration

The 1N4749 G typically has two pins, anode, and cathode. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.

Functional Features

  • Voltage Regulation: The diode maintains a constant voltage across its terminals, providing stability in electronic circuits.
  • Overvoltage Protection: It protects sensitive components by diverting excess voltage away from them.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Compact size
  • Cost-effective solution for voltage regulation

Disadvantages

  • Limited power dissipation capability
  • Susceptible to thermal runaway under high current conditions

Working Principles

The 1N4749 G operates based on the Zener effect, where it allows current to flow in reverse bias once the voltage reaches its breakdown voltage. This characteristic enables it to regulate voltage in electronic circuits.

Detailed Application Field Plans

The 1N4749 G finds extensive use in various applications, including: - Voltage regulators - Overvoltage protection circuits - Power supplies - Electronic instrumentation

Detailed and Complete Alternative Models

Some alternative models to the 1N4749 G include: - 1N4738A - 1N4742A - BZX85C27

In conclusion, the 1N4749 G Zener diode serves as a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its specifications, pin configuration, functional features, advantages, and disadvantages make it suitable for a wide range of applications.

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技術ソリューションにおける 1N4749 G 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。

Sure, here are 10 common questions and answers related to the application of 1N4749 G in technical solutions:

  1. What is the 1N4749 G diode used for?

    • The 1N4749 G is a Zener diode primarily used for voltage regulation and voltage reference applications.

  2. What is the voltage rating of the 1N4749 G diode?

    • The 1N4749 G has a nominal Zener voltage of 24V.

  3. What is the power rating of the 1N4749 G diode?

    • The 1N4749 G has a power dissipation rating of 1W.

  4. How does the 1N4749 G diode regulate voltage?

    • The 1N4749 G operates in the reverse breakdown region, maintaining a nearly constant voltage across its terminals when properly biased.

  5. Can the 1N4749 G be used for overvoltage protection?

    • Yes, the 1N4749 G can be used to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.

  6. What are typical applications of the 1N4749 G diode?

    • Typical applications include voltage regulation in power supplies, voltage reference circuits, and as a protective element in electronic circuits.

  7. What is the maximum current the 1N4749 G can handle?

    • The 1N4749 G can handle a maximum continuous current of around 40-50 mA.

  8. What are the temperature considerations for the 1N4749 G diode?

    • The 1N4749 G operates within a specified temperature range, typically between -65°C to +200°C.

  9. Can multiple 1N4749 G diodes be connected in series or parallel?

    • Yes, multiple 1N4749 G diodes can be connected in series to increase the total breakdown voltage, or in parallel to increase the current-handling capability.

  10. Are there any precautions to consider when using the 1N4749 G diode?

    • It's important to ensure proper heat dissipation and current limiting to prevent the diode from exceeding its maximum ratings, and to avoid damaging the device.

I hope these answers provide the information you were looking for! If you have any more questions, feel free to ask.