Microsemi Corporation
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1N746AUR-1
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1N746AUR-1

Product Overview

Category:

The 1N746AUR-1 belongs to the category of Zener diodes.

Use:

It is commonly used for voltage regulation and protection in electronic circuits.

Characteristics:

  • Zener voltage: 3.3V
  • Power dissipation: 500mW
  • Package type: DO-41
  • Operating temperature range: -65°C to +200°C
  • Storage temperature range: -65°C to +200°C

Package:

The 1N746AUR-1 is typically available in a DO-41 package.

Packaging/Quantity:

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

Specifications

  • Zener voltage: 3.3V
  • Power dissipation: 500mW
  • Maximum forward voltage: 1.1V
  • Reverse current: 5μA
  • Temperature coefficient: 0.05%/°C

Detailed Pin Configuration

The 1N746AUR-1 Zener diode has two pins, anode, and cathode. The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.

Functional Features

The 1N746AUR-1 Zener diode provides a constant voltage output when it is reverse-biased and operated within its specified voltage and current limits. It acts as a voltage regulator by maintaining a nearly constant output voltage across a wide range of load currents and input voltages.

Advantages and Disadvantages

Advantages:

  • Precise voltage regulation
  • Protection against voltage spikes
  • Compact size

Disadvantages:

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

When the Zener diode is reverse-biased and the voltage across it reaches the Zener voltage, it starts conducting, allowing current to flow through it. This characteristic enables it to regulate the voltage in a circuit.

Detailed Application Field Plans

The 1N746AUR-1 Zener diode finds applications in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N746AUR-1 Zener diode include: - 1N4730A - BZX55C3V3 - 3EZ3.3D5

In conclusion, the 1N746AUR-1 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and protection against voltage spikes. Its compact size and functional features make it suitable for a wide range of applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N746AUR-1 v technických řešeních

  1. What is the 1N746AUR-1?

    • The 1N746AUR-1 is a 4.7V Zener diode designed for voltage regulation and protection in electronic circuits.

  2. What are the typical applications of the 1N746AUR-1?

    • It is commonly used for voltage reference, voltage stabilization, and overvoltage protection in various electronic circuits.

  3. What is the maximum power dissipation of the 1N746AUR-1?

    • The maximum power dissipation is 500mW, making it suitable for low to moderate power applications.

  4. What is the operating temperature range of the 1N746AUR-1?

    • The operating temperature range is typically -65°C to +200°C, allowing for use in a wide range of environments.

  5. How does the 1N746AUR-1 provide voltage regulation?

    • The 1N746AUR-1 operates in the reverse-biased breakdown region, maintaining a constant voltage drop across its terminals.

  6. Can the 1N746AUR-1 be used for voltage clamping?

    • Yes, it can be used to limit the voltage across a load by diverting excess current when the voltage exceeds the Zener voltage.

  7. What are the key electrical characteristics of the 1N746AUR-1?

    • These include its Zener voltage, dynamic impedance, and leakage current, which are crucial for its proper application.

  8. Is the 1N746AUR-1 suitable for precision voltage references?

    • While it provides a stable voltage reference, its precision may not be as high as specialized voltage reference ICs.

  9. Can multiple 1N746AUR-1 diodes be connected in series or parallel?

    • Yes, they can be connected in series to create higher voltage references or in parallel to share current in higher power applications.

  10. Are there any important considerations for PCB layout when using the 1N746AUR-1?

    • Proper thermal management and placement to minimize stress on the diode are important for reliable performance.