Microsemi Corporation
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
1N979A
Zobrazit detail DataSheets

1N979A Semiconductor Diode

Product Overview

Category:

The 1N979A is a semiconductor diode belonging to the category of signal or small-signal diodes.

Use:

It is commonly used in electronic circuits for rectification, detection, and clamping applications.

Characteristics:

  • Forward Voltage Drop: Typically around 0.7V
  • Reverse Leakage Current: Low leakage current
  • Maximum Reverse Voltage: Varies based on specific model
  • Operating Temperature Range: -65°C to +175°C

Package:

The 1N979A is typically available in a DO-35 glass axial package.

Packaging/Quantity:

It is commonly packaged in reels, tubes, or bulk quantities depending on the manufacturer.

Specifications

  • Maximum Reverse Voltage: Varies (e.g., 75V, 100V)
  • Maximum Forward Current: Typically 150mA
  • Reverse Recovery Time: In nanoseconds
  • Power Dissipation: Depends on the specific model

Detailed Pin Configuration

The 1N979A has two pins with the anode and cathode terminals clearly marked. The pinout configuration is as follows: - Anode (A) - Pin 1 - Cathode (K) - Pin 2

Functional Features

The 1N979A operates as a unidirectional semiconductor device, allowing current to flow in only one direction. It exhibits low forward voltage drop and minimal reverse leakage, making it suitable for various signal processing applications.

Advantages and Disadvantages

Advantages

  • Low forward voltage drop
  • Low reverse leakage current
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited maximum reverse voltage compared to other diode types
  • Relatively slower reverse recovery time compared to fast recovery diodes

Working Principles

The 1N979A operates based on the principles of semiconductor physics, utilizing the properties of P-N junctions to allow current flow in one direction while blocking it in the reverse direction.

Detailed Application Field Plans

The 1N979A finds application in various electronic circuits, including: - Signal rectification in audio amplifiers - Voltage clamping in protection circuits - Signal detection in communication systems

Detailed and Complete Alternative Models

Some alternative models to the 1N979A include: - 1N914: Small-signal diode with similar characteristics - 1N4001: General-purpose rectifier diode with higher voltage ratings - BAT54: Schottky diode with lower forward voltage drop

In conclusion, the 1N979A semiconductor diode is a versatile component widely used in electronic circuits for signal processing and control applications. Its low forward voltage drop, minimal reverse leakage, and compact size make it a popular choice for various design requirements.

Word Count: 410

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N979A v technických řešeních

  1. What is 1N979A?

    • 1N979A is a semiconductor diode used in various technical solutions.

  2. What are the key specifications of 1N979A?

    • The key specifications include its forward voltage, reverse current, and maximum power dissipation.

  3. In what applications is 1N979A commonly used?

    • 1N979A is commonly used in power supply circuits, rectification circuits, and signal demodulation.

  4. What is the typical forward voltage drop of 1N979A?

    • The typical forward voltage drop of 1N979A is around 0.7 volts.

  5. What is the maximum reverse current for 1N979A?

    • The maximum reverse current for 1N979A is typically in the microampere range.

  6. Can 1N979A be used in high-frequency applications?

    • 1N979A is not suitable for high-frequency applications due to its inherent capacitance.

  7. What are the temperature considerations for 1N979A?

    • 1N979A has a specified operating temperature range, and exceeding this range can affect its performance.

  8. Is 1N979A sensitive to electrostatic discharge (ESD)?

    • Yes, 1N979A is sensitive to ESD, so proper handling procedures should be followed.

  9. Are there any common failure modes associated with 1N979A?

    • Common failure modes include thermal runaway under high current conditions and breakdown due to excessive reverse voltage.

  10. Can 1N979A be replaced with other diodes in a circuit?

    • Depending on the specific application and requirements, suitable replacements may include diodes with similar forward voltage and current ratings.