Microsemi Corporation
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JANS1N4991

JANS1N4991 Diode

Product Overview

Category

The JANS1N4991 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

  • High reliability and performance
  • Low forward voltage drop
  • Fast switching speed
  • High surge current capability

Package

The JANS1N4991 diode is typically available in a DO-41 package.

Essence

The essence of the JANS1N4991 diode lies in its ability to efficiently convert AC to DC while maintaining high reliability and performance.

Packaging/Quantity

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

Specifications

  • Maximum Forward Voltage: 1V
  • Reverse Voltage: 50V
  • Maximum Average Rectified Current: 1A
  • Operating Temperature Range: -65°C to 175°C

Detailed Pin Configuration

The JANS1N4991 diode has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Efficient rectification of AC to DC
  • Fast response time
  • High surge current handling capability

Advantages

  • High reliability
  • Low forward voltage drop
  • Fast switching speed

Disadvantages

  • Limited reverse voltage capability compared to other diodes in the same category
  • Relatively lower maximum average rectified current compared to some alternatives

Working Principles

The JANS1N4991 diode operates based on the principle of unidirectional conduction, allowing current to flow in only one direction when forward biased.

Detailed Application Field Plans

The JANS1N4991 diode finds applications in various fields including: - Power supply units - Battery chargers - LED lighting systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the JANS1N4991 diode include: - 1N4001 - 1N4004 - 1N4007 - 1N5408

In conclusion, the JANS1N4991 diode is a reliable and efficient semiconductor device commonly used for rectification in electronic circuits. Its high reliability, low forward voltage drop, and fast switching speed make it suitable for a wide range of applications in different industries.

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  1. What is the JANS1N4991 diode used for?

    • The JANS1N4991 diode is commonly used for high-reliability applications in military and aerospace systems due to its rugged construction and high performance.

  2. What are the key specifications of the JANS1N4991 diode?

    • The JANS1N4991 diode typically has a forward voltage drop of around 0.7V, a reverse voltage rating of 50V, and a maximum forward current of 200mA.

  3. How does the JANS1N4991 diode differ from standard diodes?

    • The JANS1N4991 diode is specifically designed and tested to meet stringent military and aerospace standards for reliability and performance, making it suitable for harsh environments.

  4. Can the JANS1N4991 diode be used in commercial applications?

    • While the JANS1N4991 diode is primarily intended for military and aerospace use, it can also be utilized in commercial applications where high reliability and performance are critical.

  5. What are the temperature specifications for the JANS1N4991 diode?

    • The JANS1N4991 diode is typically rated for operation over a wide temperature range, often from -65°C to 175°C, making it suitable for extreme environmental conditions.

  6. Is the JANS1N4991 diode radiation tolerant?

    • Yes, the JANS1N4991 diode is designed to withstand ionizing radiation, making it suitable for use in space and other high-radiation environments.

  7. What packaging options are available for the JANS1N4991 diode?

    • The JANS1N4991 diode is commonly available in hermetically sealed glass packages, such as DO-35, making it resistant to moisture and other contaminants.

  8. Are there any application notes or guidelines for using the JANS1N4991 diode?

    • Yes, manufacturers typically provide detailed application notes and guidelines for integrating the JANS1N4991 diode into various technical solutions, ensuring proper usage.

  9. Can the JANS1N4991 diode be used in high-frequency applications?

    • While the JANS1N4991 diode is not specifically optimized for high-frequency applications, it can still be used in moderate frequency circuits with appropriate considerations.

  10. Where can I purchase the JANS1N4991 diode?

    • The JANS1N4991 diode can be obtained from authorized distributors of military and aerospace-grade components, as well as directly from the manufacturer's official channels.