Microsemi Corporation
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1N981B
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1N981B Semiconductor Diode

Product Overview

Category

The 1N981B is a semiconductor diode belonging to the category of rectifier diodes.

Use

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

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
  • Fast Switching Speed

Package

The 1N981B is typically available in various packages such as DO-41, DO-15, or SMA, depending on the manufacturer.

Packaging/Quantity

It is usually packaged in reels, tubes, or bulk quantities, with standard packaging containing anywhere from 100 to 1000 units per package.

Specifications

  • Maximum Reverse Voltage: Varies by specific model (e.g., 50V, 100V, 200V)
  • Maximum Forward Current: Typically around 1A
  • Reverse Recovery Time: In the range of nanoseconds
  • Power Dissipation: Depends on the package and mounting method

Detailed Pin Configuration

The 1N981B typically has two pins, anode, and cathode. The anode is denoted by a longer lead or a notch on the diode body.

Functional Features

  • Efficient rectification of AC to DC
  • Fast switching speed allows for high-frequency applications
  • Low forward voltage drop minimizes power loss

Advantages

  • Low forward voltage drop
  • Fast switching speed
  • Low reverse leakage current
  • Wide operating temperature range

Disadvantages

  • Limited maximum reverse voltage compared to other diode types
  • Higher cost compared to standard silicon diodes

Working Principles

The 1N981B operates based on the principle of creating a one-way flow of current when forward-biased and blocking the current flow when reverse-biased, allowing it to function as a rectifier.

Detailed Application Field Plans

The 1N981B is widely used in: - Power supply units - Battery chargers - Voltage regulators - Switching power supplies - LED lighting applications

Detailed and Complete Alternative Models

  • 1N4001, 1N4004, 1N5408
  • FR107, FR207
  • UF4007, UF5408

In conclusion, the 1N981B semiconductor diode is a versatile component widely used in electronic circuits for rectification and voltage regulation. Its efficient performance, fast switching speed, and low forward voltage drop make it suitable for various applications in the electronics industry.

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Énumérez 10 questions et réponses courantes liées à l'application de 1N981B dans les solutions techniques

  1. What is 1N981B?

    • 1N981B is a specific technical solution used in electronic systems for signal conditioning and protection.

  2. How does 1N981B work?

    • 1N981B works by providing voltage clamping and transient suppression to protect sensitive electronic components from voltage spikes and transients.

  3. Where is 1N981B commonly used?

    • 1N981B is commonly used in power supplies, communication equipment, and industrial control systems.

  4. What are the key specifications of 1N981B?

    • The key specifications of 1N981B include its breakdown voltage, peak pulse current, and response time.

  5. What are the benefits of using 1N981B in technical solutions?

    • The benefits of using 1N981B include improved system reliability, protection of sensitive components, and reduced risk of damage from voltage surges.

  6. How do I select the right 1N981B for my application?

    • Select the right 1N981B by considering the operating voltage, maximum surge current, and response time required for your specific application.

  7. Can 1N981B be used in high-frequency applications?

    • Yes, 1N981B can be used in high-frequency applications due to its fast response time and low capacitance.

  8. What are the potential drawbacks of using 1N981B?

    • Potential drawbacks of using 1N981B may include increased system cost and the need for proper circuit layout to minimize parasitic effects.

  9. Are there any alternatives to 1N981B for transient suppression?

    • Yes, alternatives to 1N981B for transient suppression include metal oxide varistors (MOVs) and transient voltage suppressor (TVS) diodes.

  10. How should 1N981B be integrated into a technical solution?

    • 1N981B should be integrated near sensitive components, with proper PCB layout and grounding techniques to ensure effective transient suppression.