Microsemi Corporation
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SMBJ4739A/TR13
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SMBJ4739A/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: Protecting 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): 30.3A
  • Power - Peak Pulse: 600W
  • Type: Zener

Detailed Pin Configuration

The SMBJ4739A/TR13 has a simple 2-pin configuration with no specific pinout requirements.

Functional Features

  • Provides transient voltage suppression for electronic circuits
  • Fast response time to protect sensitive components
  • Low clamping voltage ensures minimal impact on the protected circuit

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Limited peak pulse current handling capacity
  • Requires careful consideration of placement in the circuit for optimal performance

Working Principles

The SMBJ4739A/TR13 operates by diverting excess voltage away from sensitive electronic components, thereby preventing damage due to voltage spikes. When the voltage exceeds the breakdown voltage, the diode conducts and clamps the voltage to a safe level.

Detailed Application Field Plans

The SMBJ4739A/TR13 is commonly used in various electronic devices and systems, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ4740A/TR13
  • Alternative Model 2: SMBJ4741A/TR13
  • Alternative Model 3: SMBJ4742A/TR13
  • Alternative Model 4: SMBJ4743A/TR13
  • Alternative Model 5: SMBJ4744A/TR13

These alternative models offer similar transient voltage suppression capabilities with varying voltage ratings to suit different application requirements.

This content provides a comprehensive overview of the SMBJ4739A/TR13 diode, covering its basic information, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMBJ4739A/TR13 en soluciones técnicas

  1. What is the SMBJ4739A/TR13?

    • The SMBJ4739A/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 SMBJ4739A/TR13?

    • The maximum working voltage of the SMBJ4739A/TR13 is 39 volts.

  3. What is the peak pulse power dissipation of the SMBJ4739A/TR13?

    • The peak pulse power dissipation of the SMBJ4739A/TR13 is typically 600 watts.

  4. What are the typical applications of the SMBJ4739A/TR13?

    • The SMBJ4739A/TR13 is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems for transient voltage protection.

  5. What is the clamping voltage of the SMBJ4739A/TR13?

    • The clamping voltage of the SMBJ4739A/TR13 is the voltage at which it starts to conduct significantly during a transient event and is typically around 64.4 volts.

  6. What is the operating temperature range of the SMBJ4739A/TR13?

    • The SMBJ4739A/TR13 has an operating temperature range of -55°C to 150°C.

  7. How does the SMBJ4739A/TR13 provide protection against voltage spikes?

    • The SMBJ4739A/TR13 shunts excess current away from sensitive components by diverting it through the diode, thus protecting them from damage.

  8. Is the SMBJ4739A/TR13 RoHS compliant?

    • Yes, the SMBJ4739A/TR13 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  9. What is the package type of the SMBJ4739A/TR13?

    • The SMBJ4739A/TR13 comes in a surface mount DO-214AA (SMB) package.

  10. Can the SMBJ4739A/TR13 be used for ESD protection?

    • Yes, the SMBJ4739A/TR13 can also be used for electrostatic discharge (ESD) protection in various electronic circuits.