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1N4746AE3

1N4746AE3

Product Overview

Category

The 1N4746AE3 is a Zener diode, which falls under the category of semiconductor devices.

Use

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

Characteristics

  • Forward Voltage: 1.2V
  • Power Dissipation: 1W
  • Zener Voltage: 18V
  • Operating Temperature: -65°C to +200°C

Package

The 1N4746AE3 is available in a DO-41 axial leaded package.

Essence

This Zener diode is designed to provide a stable voltage reference under specific operating conditions.

Packaging/Quantity

It is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Maximum Zener Impedance: 10Ω
  • Reverse Leakage Current: 5μA
  • Maximum Surge Current: 50A
  • Tolerance: ±5%

Detailed Pin Configuration

The 1N4746AE3 has two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage Regulation: The 1N4746AE3 maintains a constant voltage across its terminals when operated within its specified parameters.
  • Overvoltage Protection: It can protect circuits from overvoltage conditions by shunting excess current.

Advantages

  • Precise Voltage Regulation: Provides a stable reference voltage for various electronic circuits.
  • Compact Size: Its small form factor makes it suitable for space-constrained applications.

Disadvantages

  • Limited Power Dissipation: The maximum power dissipation may restrict its use in high-power applications.
  • Sensitivity to Temperature: Its characteristics can be affected by temperature variations.

Working Principles

The 1N4746AE3 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at a specific voltage.

Detailed Application Field Plans

Voltage Regulation

The 1N4746AE3 can be used in power supplies, voltage regulators, and precision voltage references.

Overvoltage Protection

It is employed in circuits requiring protection against voltage spikes and surges, such as in automotive electronics and industrial control systems.

Detailed and Complete Alternative Models

  • 1N4730A
  • 1N4731A
  • 1N4732A
  • 1N4733A
  • 1N4734A

These alternative models offer different Zener voltages while sharing similar characteristics and package types.

In conclusion, the 1N4746AE3 Zener diode serves as a reliable voltage reference and regulator, finding applications in diverse electronic circuits that demand stable voltage control and overvoltage protection.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4746AE3 en soluciones técnicas

  1. What is the 1N4746AE3 diode used for?

    • The 1N4746AE3 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the 1N4746AE3 diode?

    • The 1N4746AE3 has a nominal voltage of 18 volts, making it suitable for applications requiring precise voltage regulation.

  3. How does the 1N4746AE3 diode work?

    • The 1N4746AE3 operates in the reverse-biased breakdown region, allowing it to maintain a constant voltage across its terminals, providing stable voltage regulation.

  4. Can the 1N4746AE3 be used for overvoltage protection?

    • Yes, the 1N4746AE3 can be used to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.

  5. What are typical applications of the 1N4746AE3 diode?

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

  6. What is the maximum power dissipation of the 1N4746AE3 diode?

    • The 1N4746AE3 has a maximum power dissipation of 1.0 watt, allowing it to handle moderate power levels in circuit applications.

  7. Is the 1N4746AE3 suitable for automotive electronics?

    • Yes, the 1N4746AE3 can be used in automotive electronics for voltage regulation and protection against voltage transients.

  8. What is the temperature coefficient of the 1N4746AE3 diode?

    • The temperature coefficient is typically around -2.0 mV/°C, indicating relatively stable voltage regulation over a range of temperatures.

  9. Can multiple 1N4746AE3 diodes be connected in series or parallel?

    • Yes, multiple 1N4746AE3 diodes can be connected in series to increase the total breakdown voltage or in parallel to share current in high-power applications.

  10. Are there any special considerations for PCB layout when using the 1N4746AE3?

    • It's important to minimize trace lengths and keep the diode close to the load to reduce parasitic inductance and ensure proper voltage regulation.