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1N4490
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1N4490 Diode

Product Overview

Category:

The 1N4490 diode belongs to the category of semiconductor devices.

Use:

It is commonly used as a rectifier in electronic circuits to convert alternating current (AC) to direct current (DC).

Characteristics:

  • Forward Voltage Drop: Typically around 0.7V
  • Maximum Reverse Voltage: 50V
  • Maximum Forward Current: 1A
  • Fast Switching Speed

Package:

The 1N4490 diode is typically available in a DO-41 package, which is a cylindrical axial-lead package.

Packaging/Quantity:

It is commonly packaged in reels or tubes and is available in quantities ranging from hundreds to thousands per package.

Specifications

  • Forward Voltage Drop: 0.7V
  • Reverse Voltage: 50V
  • Forward Current: 1A
  • Package Type: DO-41
  • Operating Temperature Range: -65°C to 175°C

Detailed Pin Configuration

The 1N4490 diode has two leads, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

The 1N4490 diode acts as a one-way valve for electric current, allowing current to flow in only one direction. It exhibits low forward voltage drop and fast switching characteristics, making it suitable for various electronic applications.

Advantages and Disadvantages

Advantages

  • Low forward voltage drop
  • Fast switching speed
  • Compact DO-41 package
  • Wide operating temperature range

Disadvantages

  • Limited maximum reverse voltage compared to other diodes
  • Relatively low maximum forward current rating

Working Principles

When the diode is forward-biased, it allows current to flow with minimal resistance due to its low forward voltage drop. In reverse bias, it blocks the flow of current, acting as an open circuit.

Detailed Application Field Plans

The 1N4490 diode finds applications in: - Power supply circuits - Rectification circuits - Signal demodulation - Overvoltage protection circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4490 diode include: - 1N4001: Similar characteristics with higher maximum reverse voltage - 1N4148: Faster switching speed with lower maximum forward current

In conclusion, the 1N4490 diode is a versatile semiconductor device widely used in electronic circuits for rectification and signal processing applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 1N4490 i tekniska lösningar

  1. What is 1N4490?

    • 1N4490 is a silicon rectifier diode commonly used in electronic circuits for converting alternating current (AC) to direct current (DC).

  2. What are the key specifications of 1N4490?

    • The 1N4490 diode has a maximum repetitive peak reverse voltage of 200 volts, a maximum average forward rectified current of 1 ampere, and a maximum forward voltage drop of 1 volt at 1 ampere.

  3. How is 1N4490 typically used in technical solutions?

    • 1N4490 is often used in power supply circuits, battery chargers, voltage regulators, and other applications where AC to DC conversion is required.

  4. What are the important considerations when using 1N4490 in a circuit?

    • It's important to consider the maximum voltage and current requirements of the circuit, as well as the thermal characteristics of the diode to ensure proper heat dissipation.

  5. Can 1N4490 be used in high-frequency applications?

    • No, 1N4490 is not suitable for high-frequency applications due to its relatively slow recovery time.

  6. Are there any alternative diodes that can be used in place of 1N4490?

    • Yes, similar rectifier diodes such as 1N4001, 1N4007, or 1N5408 can be used as alternatives depending on the specific requirements of the circuit.

  7. What precautions should be taken when soldering 1N4490?

    • Care should be taken to avoid overheating the diode during soldering, as excessive heat can damage the semiconductor junction.

  8. Can 1N4490 be used in reverse-biased mode?

    • Yes, 1N4490 can withstand a certain amount of reverse voltage, but it's important to stay within the specified limits to prevent damage.

  9. What is the typical operating temperature range for 1N4490?

    • The operating temperature range for 1N4490 is usually between -65°C to +175°C.

  10. Where can I find detailed application notes for using 1N4490 in technical solutions?

    • Detailed application notes and usage guidelines for 1N4490 can be found in the datasheet provided by the manufacturer or in electronics reference books.