Microsemi Corporation
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SMBJ4749A/TR13
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SMBJ4749A/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 and reel, 3000 units per reel

Specifications

  • Voltage - Reverse Standoff (Typ): 43.6V
  • Voltage - Breakdown (Min): 48.5V
  • Clamping Voltage (Max) @ Ipp: 77.4V
  • Peak Pulse Current: 30.1A
  • Power Peak Pulse: 600W
  • Type: Zener

Detailed Pin Configuration

The SMBJ4749A/TR13 has a simple 2-pin configuration with no polarity.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time ensures minimal damage to protected circuits
  • Low clamping voltage prevents excessive voltage exposure to downstream components

Advantages and Disadvantages

Advantages

  • Effective voltage suppression
  • Fast response time
  • Compact package size

Disadvantages

  • Limited peak pulse current handling compared to larger diodes
  • Higher clamping voltage than some alternative models

Working Principles

The SMBJ4749A/TR13 operates by diverting excess voltage away from sensitive components when a transient voltage event occurs. It acts as a "safety valve" for the circuit, preventing damage from voltage spikes.

Detailed Application Field Plans

The SMBJ4749A/TR13 is commonly used in: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SMBJ4749A/TR13 include: - SMAJ4749A: Similar characteristics but in a different package (DO-214AC) - P6KE47A: Axial leaded diode with similar voltage suppression capabilities

This comprehensive entry provides an in-depth understanding of the SMBJ4749A/TR13, covering its specifications, features, applications, and alternatives.

Word count: 324

Texniki həllərdə SMBJ4749A/TR13 tətbiqi ilə bağlı 10 ümumi sual və cavabı sadalayın

  1. What is the SMBJ4749A/TR13?

    • The SMBJ4749A/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 SMBJ4749A/TR13?

    • The maximum working voltage of the SMBJ4749A/TR13 is 440V.

  3. What is the peak pulse power dissipation of the SMBJ4749A/TR13?

    • The peak pulse power dissipation of the SMBJ4749A/TR13 is 600W.

  4. What are the typical applications of the SMBJ4749A/TR13?

    • The SMBJ4749A/TR13 is commonly used in surge protection for telecommunications equipment, industrial controls, consumer electronics, and automotive systems.

  5. What is the operating temperature range of the SMBJ4749A/TR13?

    • The operating temperature range of the SMBJ4749A/TR13 is -55°C to +150°C.

  6. What is the reverse stand-off voltage of the SMBJ4749A/TR13?

    • The reverse stand-off voltage of the SMBJ4749A/TR13 is 440V.

  7. Does the SMBJ4749A/TR13 meet any specific industry standards?

    • Yes, the SMBJ4749A/TR13 complies with the requirements of RoHS and is also halogen-free.

  8. Can the SMBJ4749A/TR13 be used for ESD protection?

    • Yes, the SMBJ4749A/TR13 can be used for electrostatic discharge (ESD) protection in various electronic circuits.

  9. What package type does the SMBJ4749A/TR13 come in?

    • The SMBJ4749A/TR13 is available in a DO-214AA (SMB) package.

  10. Is the SMBJ4749A/TR13 suitable for high-speed data lines?

    • Yes, the SMBJ4749A/TR13 is suitable for protecting high-speed data lines such as USB, Ethernet, and HDMI interfaces.