Microsemi Corporation
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SMBJ4742A/TR13
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SMBJ4742A/TR13

Product Overview

  • Category: Diode
  • Use: Voltage suppression in electronic circuits
  • Characteristics: Transient voltage suppressor diode, low clamping voltage, fast response time
  • Package: DO-214AA (SMB), 2-Pin
  • Essence: Protects sensitive electronic components from voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Voltage - Reverse Standoff (Typ): 43.6V
  • Voltage - Breakdown (Min): 48.5V
  • Voltage - Clamping (Max) @ Ipp: 70.1V
  • Current - Peak Pulse (10/1000µs): 34.4A
  • Power - Peak Pulse: 600W
  • Type: Zener

Detailed Pin Configuration

The SMBJ4742A/TR13 has a simple 2-pin configuration with the anode and cathode.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time for rapid clamping of voltage spikes
  • Low clamping voltage to minimize stress on protected circuits

Advantages and Disadvantages

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • Low clamping voltage

Disadvantages

  • Limited peak pulse current handling capability
  • Requires careful consideration of placement in circuit design

Working Principles

The SMBJ4742A/TR13 operates by diverting excess voltage away from sensitive electronic components when a transient voltage event occurs. It achieves this by rapidly clamping the voltage at a level that is safe for the connected circuitry.

Detailed Application Field Plans

This diode is commonly used in various electronic devices and systems, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMBJ4742B/TR13: Similar specifications with a slightly higher clamping voltage
  • SMBJ4743A/TR13: Higher breakdown voltage and peak pulse current rating
  • SMBJ4744A/TR13: Lower clamping voltage and faster response time

In conclusion, the SMBJ4742A/TR13 is a reliable transient voltage suppressor diode with fast response time and low clamping voltage, making it suitable for protecting sensitive electronic components in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMBJ4742A/TR13 v technických řešeních

  1. What is the SMBJ4742A/TR13?

    • The SMBJ4742A/TR13 is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum working voltage of the SMBJ4742A/TR13?

    • The maximum working voltage of the SMBJ4742A/TR13 is 440V.

  3. What is the peak pulse power dissipation of the SMBJ4742A/TR13?

    • The peak pulse power dissipation of the SMBJ4742A/TR13 is 600W.

  4. What are the typical applications of the SMBJ4742A/TR13?

    • Typical applications of the SMBJ4742A/TR13 include protection of electronic circuits in telecommunications, industrial equipment, and automotive systems.

  5. What is the clamping voltage of the SMBJ4742A/TR13?

    • The clamping voltage of the SMBJ4742A/TR13 is 775V.

  6. What is the operating temperature range of the SMBJ4742A/TR13?

    • The operating temperature range of the SMBJ4742A/TR13 is -55°C to 150°C.

  7. What is the package type of the SMBJ4742A/TR13?

    • The SMBJ4742A/TR13 comes in a DO-214AA (SMB) package.

  8. Is the SMBJ4742A/TR13 RoHS compliant?

    • Yes, the SMBJ4742A/TR13 is RoHS compliant.

  9. What are the key features of the SMBJ4742A/TR13?

    • The key features of the SMBJ4742A/TR13 include low clamping voltage, fast response time, and high surge capability.

  10. Can the SMBJ4742A/TR13 be used for overvoltage protection in power supply circuits?

    • Yes, the SMBJ4742A/TR13 is suitable for overvoltage protection in power supply circuits due to its high surge capability and fast response time.