Semtech Corporation
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1N4948
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1N4948 Diode

Product Overview

Category:

The 1N4948 diode belongs to the category of rectifier diodes.

Use:

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

Characteristics:

  • Forward Voltage: 1V
  • Reverse Voltage: 1000V
  • Current Rating: 1A
  • Fast switching speed
  • High surge current capability

Package:

The 1N4948 diode is typically available in a DO-41 package.

Packaging/Quantity:

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

Specifications

  • Maximum Average Forward Current: 1A
  • Peak Repetitive Reverse Voltage: 1000V
  • Maximum Forward Voltage Drop: 1V
  • Operating Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The 1N4948 diode has two pins, an anode, and a cathode. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.

Functional Features

The 1N4948 diode is designed to allow current to flow in only one direction, making it ideal for use in rectification and voltage regulation circuits. It also exhibits fast switching characteristics, making it suitable for high-frequency applications.

Advantages and Disadvantages

Advantages

  • High reverse voltage capability
  • Fast switching speed
  • Compact and easy to integrate into circuit designs

Disadvantages

  • Relatively high forward voltage drop compared to other diodes
  • Limited current handling capacity compared to higher-rated diodes

Working Principles

The 1N4948 diode operates based on the principle of semiconductor junction behavior. When a forward bias is applied, it allows current to flow, while in reverse bias, it blocks the flow of current.

Detailed Application Field Plans

The 1N4948 diode finds extensive use in various electronic applications, including: - Power supply circuits - Voltage regulation circuits - Rectification circuits - Switching power supplies - Inverters

Detailed and Complete Alternative Models

Some alternative models to the 1N4948 diode include: - 1N4007 - 1N5408 - 1N5819 - FR107 - UF4007

In conclusion, the 1N4948 diode is a versatile component widely used in electronic circuits for rectification and voltage regulation. Its high reverse voltage capability, fast switching speed, and compact design make it a popular choice in various applications.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням 1N4948 у технічних рішеннях

Sure, here are 10 common questions and answers related to the application of 1N4948 diode in technical solutions:

  1. What is the 1N4948 diode used for?

    • The 1N4948 diode is commonly used for general-purpose rectification in electronic circuits.

  2. What is the maximum repetitive peak reverse voltage (VRRM) of the 1N4948 diode?

    • The VRRM of the 1N4948 diode is 1000 volts.

  3. What is the maximum average forward rectified current (IO) of the 1N4948 diode?

    • The IO of the 1N4948 diode is 1.0 ampere.

  4. What is the typical forward voltage drop (VF) of the 1N4948 diode at its rated current?

    • The VF of the 1N4948 diode is approximately 1.0 volt at its rated current.

  5. Can the 1N4948 diode be used for high-frequency applications?

    • No, the 1N4948 diode is not suitable for high-frequency applications due to its relatively slow recovery time.

  6. Is the 1N4948 diode suitable for switching power supply designs?

    • Yes, the 1N4948 diode can be used in low to moderate power switching power supply designs.

  7. What is the operating temperature range of the 1N4948 diode?

    • The 1N4948 diode typically operates within a temperature range of -65°C to +175°C.

  8. Can the 1N4948 diode handle surge currents?

    • Yes, the 1N4948 diode has a good capability to handle surge currents.

  9. Is the 1N4948 diode sensitive to electrostatic discharge (ESD)?

    • Yes, like most diodes, the 1N4948 diode is sensitive to ESD and should be handled with appropriate precautions.

  10. Are there any common failure modes associated with the 1N4948 diode?

    • Common failure modes include overvoltage breakdown and thermal overstress, so proper voltage and current ratings should be observed during application.

I hope this information is helpful! Let me know if you need further assistance.