Taiwan Semiconductor Corporation
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1N4740AHA0G
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1N4740AHA0G - Semiconductor Diode

Basic Information Overview

  • Category: Semiconductor diode
  • Use: Voltage regulation and rectification
  • Characteristics: Zener diode, low leakage current, high reliability
  • Package: Axial lead, DO-41 package
  • Essence: Regulates voltage by allowing current to flow in reverse direction when a certain voltage is reached
  • Packaging/Quantity: Typically available in reels of 1000 units

Specifications

  • Voltage: 10V
  • Power Dissipation: 1W
  • Operating Temperature: -65°C to +200°C
  • Zener Impedance: 20Ω

Detailed Pin Configuration

The 1N4740AHA0G has two leads, with the cathode being shorter than the anode. It follows the standard axial lead configuration.

Functional Features

  • Provides stable voltage regulation
  • Allows current to flow in reverse direction when breakdown voltage is reached
  • Low leakage current ensures minimal power loss

Advantages and Disadvantages

Advantages

  • Reliable voltage regulation
  • Low leakage current
  • High temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

The 1N4740AHA0G operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased at the specified breakdown voltage.

Detailed Application Field Plans

This diode is commonly used in voltage regulator circuits, overvoltage protection, and as a reference element in precision voltage sources. It finds applications in power supplies, instrumentation, and automotive electronics.

Detailed and Complete Alternative Models

  • 1N4739A: 8.2V Zener diode
  • 1N4741A: 11V Zener diode
  • BZX55C10: 10V Zener diode

This completes the entry for the 1N4740AHA0G semiconductor diode, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

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  1. What is the 1N4740AHA0G diode used for?

    • The 1N4740AHA0G is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the 1N4740AHA0G diode?

    • The 1N4740AHA0G has a nominal voltage of 10 volts, making it suitable for applications requiring a stable 10V reference.

  3. How does the 1N4740AHA0G diode regulate voltage?

    • The 1N4740AHA0G operates in the reverse breakdown region, maintaining a constant voltage drop across its terminals, effectively regulating the output voltage.

  4. What are typical applications for the 1N4740AHA0G diode?

    • Common applications include voltage regulation in power supplies, voltage references, and overvoltage protection in various electronic circuits.

  5. What is the maximum power dissipation of the 1N4740AHA0G diode?

    • The 1N4740AHA0G can typically handle a power dissipation of around 1 watt, making it suitable for low to moderate power applications.

  6. Can the 1N4740AHA0G be used for reverse polarity protection?

    • Yes, the 1N4740AHA0G can be employed as a reverse polarity protection device due to its ability to conduct when the reverse voltage exceeds its breakdown voltage.

  7. What are the temperature considerations for the 1N4740AHA0G diode?

    • The 1N4740AHA0G has a specified operating temperature range, typically from -65°C to +200°C, ensuring reliable performance in various environments.

  8. Is the 1N4740AHA0G suitable for automotive applications?

    • Yes, the 1N4740AHA0G can be used in automotive electronics for voltage regulation and transient protection due to its robust construction and performance characteristics.

  9. Can multiple 1N4740AHA0G diodes be connected in series or parallel?

    • Yes, multiple 1N4740AHA0G diodes can be connected in series to create higher voltage references or in parallel to share current in high-power applications.

  10. Are there any specific layout or mounting considerations for the 1N4740AHA0G diode?

    • It is important to consider proper heat sinking and PCB layout to ensure efficient heat dissipation and reliable operation of the 1N4740AHA0G in technical solutions.