Microsemi Corporation
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1N4748P/TR12
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1N4748P/TR12

Product Overview

Category

The 1N4748P/TR12 belongs to the category of semiconductor devices, specifically within the realm of diodes.

Use

This product is commonly used in electronic circuits for voltage regulation and protection against voltage spikes.

Characteristics

  • Forward Voltage: 1.0V
  • Reverse Current: 5.0µA
  • Power Dissipation: 1.0W
  • Operating Temperature: -65°C to +200°C

Package

The 1N4748P/TR12 is typically available in a DO-41 package, which is a cylindrical through-hole package.

Essence

The essence of this product lies in its ability to regulate voltage and protect sensitive electronic components from overvoltage conditions.

Packaging/Quantity

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

Specifications

  • Maximum Reverse Voltage: 22V
  • Zener Voltage Tolerance: ±5%
  • Maximum Reverse Leakage Current: 5.0µA
  • Maximum Zener Impedance: 20Ω

Detailed Pin Configuration

The 1N4748P/TR12 has two pins, with the cathode being connected to the terminal marked with a line, while the anode is connected to the other terminal.

Functional Features

  • Voltage Regulation: The 1N4748P/TR12 provides stable voltage output when operated within its specified parameters.
  • Overvoltage Protection: It safeguards connected circuits by diverting excess voltage away from sensitive components.

Advantages and Disadvantages

Advantages

  • Precise Voltage Regulation
  • Compact Size
  • Low Power Dissipation

Disadvantages

  • Limited Maximum Reverse Voltage
  • Sensitivity to Overcurrent Conditions

Working Principles

The 1N4748P/TR12 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

This product finds extensive use in various applications, including: - Voltage Regulator Circuits - Power Supplies - Signal Clipping Circuits - Overvoltage Protection Systems

Detailed and Complete Alternative Models

Some alternative models to the 1N4748P/TR12 include: - 1N4733A - 1N4739A - BZX55C22

In conclusion, the 1N4748P/TR12 serves as a crucial component in electronic circuits, providing voltage regulation and protection. Its compact size and precise regulation make it a popular choice in diverse applications, despite its limitations in maximum reverse voltage and sensitivity to overcurrent conditions.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1N4748P/TR12 en soluciones técnicas

  1. What is the 1N4748P/TR12 diode used for?

    • The 1N4748P/TR12 is a Zener diode commonly used for voltage regulation and protection in electronic circuits.

  2. What is the maximum power dissipation of the 1N4748P/TR12?

    • The maximum power dissipation of the 1N4748P/TR12 is 1.3 watts.

  3. What is the voltage rating of the 1N4748P/TR12?

    • The 1N4748P/TR12 has a nominal voltage rating of 22 volts.

  4. How does the 1N4748P/TR12 regulate voltage?

    • The 1N4748P/TR12 regulates voltage by maintaining a constant output voltage across its terminals, even when the input voltage varies.

  5. Can the 1N4748P/TR12 be used for overvoltage protection?

    • Yes, the 1N4748P/TR12 can be used to protect sensitive components from overvoltage conditions by shunting excess voltage to ground.

  6. What are the typical applications of the 1N4748P/TR12?

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

  7. What is the operating temperature range of the 1N4748P/TR12?

    • The 1N4748P/TR12 operates within a temperature range of -65°C to +200°C.

  8. Is the 1N4748P/TR12 polarity sensitive?

    • Yes, the 1N4748P/TR12 is polarity sensitive and must be connected with the correct orientation in a circuit.

  9. Can multiple 1N4748P/TR12 diodes be connected in series or parallel?

    • Multiple 1N4748P/TR12 diodes can be connected in series to increase the breakdown voltage or in parallel to increase the current-handling capacity.

  10. What are the key differences between the 1N4748P/TR12 and other Zener diodes?

    • The 1N4748P/TR12 has a specific breakdown voltage of 22 volts and a power dissipation of 1.3 watts, making it suitable for specific voltage regulation and protection applications.